nix flake & build, temp. remove gdc

10 files changed, 907 insertions, 1600 deletions

diff --git a/.envrc b/.envrc
index e049c3f..093f4ee 100644
--- a/.envrc
+++ b/.envrc
@@ -1,39 +1,17 @@
-use flake .
-#use flake .#default
 NIX_ENFORCE_PURITY=1
+# - https://github.com/nix-community/nix-direnv
 NixDirEnvVersion="2.2.1"
+NixDirEnvSHA="sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+#NixDirEnvSHAget="sha256-0000000000000000000000000000000000000000000="
 if ! has nix_direnv_version || ! nix_direnv_version ${NixDirEnvVersion}; then
-# - https://github.com/nix-community/nix-direnv
-# source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "sha256-0000000000000000000000000000000000000000000="
-  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "${NixDirEnvSHA}"
 fi
 watch_file flake.lock
 watch_file flake.nix
-if [ -f .envrc-local ]; then
-  source_env_if_exists .envrc-local || source .envrc-local
-fi
+watch_file makefile
+#if [ -f .envrc-local ]; then
+#  source_env_if_exists .envrc-local || source .envrc-local
+#fi
 PATH_add result/bin
-#nix flake update && nix flake check --show-trace && nix flake show
-# echo "
-#
-# - nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-#
-# - nix build .#default --print-build-logs
-# - nix build .#spine-dmd --print-build-logs
-# - nix build .#spine-ldc --print-build-logs
-# - nix build .#spine-gdc --print-build-logs
-#
-# - nix develop
-#   - nix develop .#devShell --print-build-logs
-#   - nix develop .#devShell-html --print-build-logs
-#   - nix develop .#devShell-epub --print-build-logs
-#   - nix develop .#devShell-latex-pdf --print-build-logs
-#   - nix develop .#devShell-sqlite --print-build-logs
-#   - nix develop .#devShell-i18n --print-build-logs
-#
-# nix run .#default --print-build-logs
-#
-# nix develop --build .#default --print-build-logs
-#
-# nix-shell '<nixpkgs>' -A nix --pure
-# "
+use flake .
+#use flake .#default
diff --git a/devenv.nix b/devenv.nix
index 81eff5a..02cca28 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -1,55 +1,34 @@
-# profile.nix
-{ pkgs ? import <nixpkgs> { }, name ? "user-env"  }: with pkgs;
+{ pkgs ? import <nixpkgs> { }, name ? "user-env" }:
+with pkgs;
 buildEnv {
   inherit name;
-  extraOutputsToInstall = [ "out" "man" "lib"  ]; # to get all needed symlinks
+  extraOutputsToInstall = [ "out" "man" "lib" ]; # to get all needed symlinks
   paths = [
+    # ❯❯❯ nix_related
     #nix # if not on NixOS, this is needed
     direnv
+    #cachix
     nixVersions.unstable #nixFlakes
     nix-prefetch-git
     validatePkgConfig
-    nix-tree jq nix-output-monitor
+    nix-output-monitor
+    nix-tree
+    jq
     git
+    gnumake
     ps
-    ### d_build_related
+    # ❯❯❯ d_build_related
+    # ❯❯ package manager
     dub
-    ## compiler
+    # ❯❯ compiler
     dmd
     ldc
-    #gdc
-    #rund
-    ## linker
-    #lld
-    #mold
-    ## builder
-    #ninja
-    #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    # ### pdf_latex_related
-    # source-sans-pro
-    # source-serif-pro
-    # source-code-pro
-    # texlive.combined.scheme-full
-    # ### xml_and_epub_related
-    # libxml2
-    # html-tidy
-    # xmlstarlet
-    # epubcheck
-    # ebook_tools
-    # epr
-    # sigil
-    # calibre #(suite includes: ebook-viewer)
-    # foliate
-    # ### i18n translation related
-    # perl534Packages.Po4a
-    ### candy
-    #starship
     # this will create a script that will rebuild and upgrade your setup; using shell script syntax
     (writeScriptBin "nix-rebuild" ''
       #!${stdenv.shell}
-      cd <path-to-flake> || exit 1
+      #cd <path-to-flake> || exit 1
       nix flake update
       nix profile upgrade '.*'
     '')
diff --git a/flake.lock b/flake.lock
index 5d8e175..be2a7fe 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "flake-utils": {
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1676283394,
+        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
         "type": "github"
       },
       "original": {
@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1675758091,
-        "narHash": "sha256-7gFSQbSVAFUHtGCNHPF7mPc5CcqDk9M2+inlVPZSneg=",
+        "lastModified": 1677534593,
+        "narHash": "sha256-PuZSAHeq4/9pP/uYH1FcagQ3nLm/DrDrvKi/xC9glvw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "747927516efcb5e31ba03b7ff32f61f6d47e7d87",
+        "rev": "3ad64d9e2d5bf80c877286102355b1625891ae9a",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 9e132d5..04663db 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,7 +39,7 @@
             inherit shell;
             inherit devEnv;
             buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub dmd ldc gdc gnumake ]; # [ dub dmd ]; [ dub ldc ]; [ dub gdc ];
+            nativeBuildInputs  = [ dub ldc gnumake ]; # [ dub dmd ]; [ dub ldc ]; [ dub gdc ];
             buildPhase = ''
               runHook preBuild
               for DC_ in dmd ldmd2 ldc2 gdc gdmd; do
@@ -94,25 +94,25 @@
             inherit installPhase;
             inherit postInstall;
           };
-          spine-gdc = stdenv.mkDerivation {
-            inherit pname;
-            inherit version;
-            meta.mainProgram   = "spine-gdc";
-            executable         = true;
-            src                = self;
-            inherit shell;
-            inherit devEnv;
-            buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub gdc gnumake ];
-            buildPhase = ''
-              runHook preBuild
-              dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
-              runHook postBuild
-            '';
-            inherit checkPhase;
-            inherit installPhase;
-            inherit postInstall;
-          };
+          #spine-gdc = stdenv.mkDerivation {
+          #  inherit pname;
+          #  inherit version;
+          #  meta.mainProgram   = "spine-gdc";
+          #  executable         = true;
+          #  src                = self;
+          #  inherit shell;
+          #  inherit devEnv;
+          #  buildInputs        = [ sqlite ];
+          #  nativeBuildInputs  = [ dub gdc gnumake ];
+          #  buildPhase = ''
+          #    runHook preBuild
+          #    dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
+          #    runHook postBuild
+          #  '';
+          #  inherit checkPhase;
+          #  inherit installPhase;
+          #  inherit postInstall;
+          #};
           #vendorSha256 = "sha256-0Q00000000000000000000000000000000000000000=";
       });
       apps = forAllSystems (system: {
@@ -155,24 +155,24 @@
             #export spineSqlite="spine --very-verbose --sqlite-update --sqlite-db-path=\"$SpineDBpath\" --sqlite-db-filename=\"spine.search.db\" --output=\"\$SpineOUT\" $SpinePOD/*"
           '';
         in with pkgs; {
-          devShell = mkShell rec {
-            name = "spine dev shell default";
+          devShell = mkShell {
+            name               = "spine base dev shell";
             inherit shell;
             inherit devEnv;
             #buildInputs        = [ sqlite ];
             #nativeBuildInputs  = [ dub dmd ldc gdc gnumake ];
             packages     = [
               sqlite
-              dub dmd ldc gdc gnumake
+              dub dmd ldc gnumake
             ];
             inherit shellHook;
           };
-          devShell-epub = mkShell rec {
-            name = "spine dev shell for epub output";
+          devShell-epub = mkShell {
+            name               = "spine dev shell for epub output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               libxml2
               html-tidy
@@ -191,22 +191,22 @@
             ];
             inherit shellHook;
           };
-          devShell-html = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-html = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
             ];
             inherit shellHook;
           };
-          devShell-latex-pdf = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-latex-pdf = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               source-sans-pro
               source-serif-pro
@@ -215,26 +215,28 @@
             ];
             inherit shellHook;
           };
-          devShell-sqlite = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-sqlite = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
             ];
             inherit shellHook;
           };
           devShell-i18n = mkShell {
+            name               = "spine dev shell internationalization, po4a";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               perl534Packages.Po4a
             ];
             inherit shellHook;
           };
+          default = import ./shell.nix { inherit pkgs; };
       });
   };
 }
diff --git a/makefile b/makefile
index 87ce153..932b30e 100644
--- a/makefile
+++ b/makefile
@@ -48,41 +48,10 @@ data/pod/through_the_looking_glass.lewis_carroll \
 data/pod/two_bits.christopher_kelty \
 data/pod/un_contracts_international_sale_of_goods_convention_1980 \
 data/pod/viral_spiral.david_bollier
-# SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND = \
-# find data/sisudir/media/text -name *.ss[tm] | sort | xargs
-# 
-# SiSU_MARKUP_SAMPLES_DIR = \
-# data/sisudir/media/text/accelerando.charles_stross.sst \
-# data/sisudir/media/text/alices_adventures_in_wonderland.lewis_carroll.sst \
-# data/sisudir/media/text/content.cory_doctorow.sst \
-# data/sisudir/media/text/democratizing_innovation.eric_von_hippel.sst \
-# data/sisudir/media/text/down_and_out_in_the_magic_kingdom.cory_doctorow.sst \
-# data/sisudir/media/text/ffa_tmp.sst \
-# data/sisudir/media/text/for_the_win.cory_doctorow.sst \
-# data/sisudir/media/text/free_as_in_freedom_2.richard_stallman_and_the_free_software_revolution.sam_williams.richard_stallman.sst \
-# data/sisudir/media/text/free_culture.lawrence_lessig.sst \
-# data/sisudir/media/text/free_for_all.peter_wayner.sst \
-# data/sisudir/media/text/gpl2.fsf.sst \
-# data/sisudir/media/text/gpl3.fsf.sst \
-# data/sisudir/media/text/gullivers_travels.jonathan_swift.sst \
-# data/sisudir/media/text/little_brother.cory_doctorow.sst \
-# data/sisudir/media/text/sisu_markup.sst \
-# data/sisudir/media/text/sisu_markup_stress_test.sst \
-# data/sisudir/media/text/sisu_markup_test.sst \
-# data/sisudir/media/text/table_special_markup.sst \
-# data/sisudir/media/text/the_autonomous_contract.ralph_amissah.sst \
-# data/sisudir/media/text/the_cathedral_and_the_bazaar.eric_s_raymond.sst \
-# data/sisudir/media/text/the_public_domain.james_boyle.sst \
-# data/sisudir/media/text/the_wealth_of_networks.yochai_benkler.sst \
-# data/sisudir/media/text/through_the_looking_glass.lewis_carroll.sst \
-# data/sisudir/media/text/two_bits.christopher_kelty.sst \
-# data/sisudir/media/text/un_contracts_international_sale_of_goods_convention_1980.sst \
-# data/sisudir/media/text/viral_spiral.david_bollier.sst
-# 
 Date                    := `date "+%Y%m%d"`
-SpineBIN                := "${SpineBIN}" # './result/bin'
-SpineOUT                := "${SpineOUT}" # '/srv/www/spine'
-SpinePOD                := "${SpinePOD}" # '~/grotto/repo/git.repo/projects/project-spine/doc-reform-markup/spine-markup-samples/markup/pod'
+SpineBIN                := "$${SpineBIN}" # './result/bin'
+SpineOUT                := "$${SpineOUT}" # '/srv/www/spine'
+SpinePOD                := "$${SpinePOD}" # '~/grotto/repo/git.repo/projects/doc-reform/data/markup/spine-samples/markup/pod'
 SpineSearchActionLocal  := 'http://localhost/spine_search'
 SpineSearchActionRemote := 'https://sisudoc.org/spine_search'
 SpineCGIform            := 'spine_search'
@@ -91,23 +60,37 @@ hwd                     := `pwd`
 gwd                     := `pwd` + "/src/ext_depends"
 deps                    := "`ls -gx './src/ext_depends'`"
 dirs_loc                := "`ls -gx '.'`"
-#dirs                    := "`ls -gx {{gwd}}`"
+#dirs                    := "`ls -gx $${gwd}`"
+
+default: flake-check
+
+flake-check:
+	nix flake update; \
+	nix flake check; \
+	echo -e 'nix flake show ❯❯\n'; \
+	nix flake show; \
+	echo -e '\n❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell" -c zsh\n'; \
+	echo -e '❯❯ nix develop\n❯❯ nix develop -c zsh\n'; \
+	echo -e '❯❯ nix build ".#spine-ldc" --print-build-logs |& nom\n❯❯ nix build ".#spine-dmd" --print-build-logs |& nom\n'; \
+	echo -e '❯❯ make -s\n❯❯ make -s nix-build-ldc\n❯❯ make -s nix-build-dmd\n'; \
+	echo -e '❯❯ make -s ldc\n❯❯ make -s dmd\n'; \
+	echo -e '❯❯ $(DUB) --compiler=ldc2 --build=ldc2\n❯❯ $(DUB) --compiler=dmd --build=dmd\n';
 
 nix-devshell:
-	echo -ne "\n- nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell\n\n- nix build .#default --print-build-logs\n- nix build .#spine-dmd --print-build-logs\n- nix build .#spine-ldc --print-build-logs\n- nix build .#spine-gdc --print-build-logs\n\n"; \
-	nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
+	echo -ne '\n❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"\n\n❯❯ nix build ".#default" --print-build-logs\n❯❯ nix build ".#spine-dmd" --print-build-logs\n❯❯ nix build ".#spine-ldc" --print-build-logs\n❯❯ nix build ".#spine-gdc" --print-build-logs\n\n'; \
+	nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"
 
 nix-build-default:
-	nix build .#default --print-build-logs
+	nix build ".#default" --print-build-logs
 
 nix-build-dmd:
-	nix build .#spine-dmd --print-build-logs
+	nix build ".#spine-dmd" --print-build-logs
 
 nix-build-ldc:
-	nix build .#spine-ldc --print-build-logs
+	nix build ".#spine-ldc" --print-build-logs
 
 nix-build-gdc:
-	nix build .#spine-gdc --print-build-logs
+	nix build ".#spine-gdc" --print-build-logs
 
 buildPhase:
 	HOME=$${PWD}; \
@@ -125,7 +108,7 @@ buildPhase:
 	fi; \
 	echo "$${DC_} used as D compiler to build $${pname}"; \
 	export DFLAGS="-O2 -inline"; \
-	dub build --compiler=$${DC} --build=release --combined --skip-registry=all;
+	dub build --compiler=$${DC} --build=$${DC_} --combined --skip-registry=all;
 
 checkPhase:
 	runHook preCheck; \
@@ -145,10 +128,10 @@ postInstall:
 	echo `ls -la $${out}/bin/spine`
 
 commands:
-	rg --color=always -B1 "^[a-z]\w+:" makefile | less
+	rg --color=always -B1 "^[a-zA-Z_-]+:" makefile | page
 
-cmd:
-	rg --color=always -B1 "^[a-z]\w+:" makefile | bat
+cmds:
+	rg --color=always -B1 "^[a-zA-Z_-]+:" makefile | page
 
 # tangle org files
 org-tangle:
@@ -156,74 +139,58 @@ org-tangle:
 	org-tangle *.org; \
 	cd -
 
-# project vim
-proj-v:
-	nvim ./org/doc-reform.org
-
-# project emacs, cli (single instance open)
-proj-e:
-	emacsclient -F -c -a -f ./org/doc-reform.org
-
-# project emacs, cli (multiple instance, no copy & paste)
-proj:
-	emacsclient -nw -a -f ./org/doc-reform.org
-
-# project emacs, gui
-proj-emacs:
-	emacs ./org/doc-reform.org &
-
 # epub output
 out-epub:
-	{{SpineBIN}}/spine -v \
-	--epub --output={{SpineOUT}} {{SpinePOD}}/*
+	$${SpineBIN}/spine -v \
+	--epub --output=$${SpineOUT} $${SpinePOD}/*
 
 # html output with local search links
 out-html:
-	{{SpineBIN}}/spine -v --generated-by \
+	$${SpineBIN}/spine -v --generated-by \
 	--curate \
-	--html --html-link-search --html-link-curate --cgi-url-action="{{SpineSearchActionLocal}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--html --html-link-search --html-link-curate --cgi-url-action="$${SpineSearchActionLocal}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # latex output
 out-latex:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--latex \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # odf output
 out-odf:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--odf \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # sqlite output
 out-sqlite:
-	{{SpineBIN}}/spine -v \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	$${SpineBIN}/spine -v \
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with local search links
 output-samples-local:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--latex --latex-init \
 	--epub \
 	--html --html-link-search --html-link-pdf --html-link-curate --html-link-markup \
-	--cgi-sqlite-search-filename="{{SpineCGIform}}" --cgi-url-action="{{SpineSearchActionLocal}}" \
+	--cgi-sqlite-search-filename="$${SpineCGIform}" --cgi-url-action="$${SpineSearchActionLocal}" \
 	--curate \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with remote search links
 output-samples-remote:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--generated-by \
 	--latex --latex-init \
 	--epub \
 	--html --html-link-search --html-link-pdf --html-link-curate \
-	--cgi-sqlite-search-filename="{{SpineCGIform}}" --cgi-url-action="{{SpineSearchActionRemote}}" \
+	--cgi-sqlite-search-filename="$${SpineCGIform}" --cgi-url-action="$${SpineSearchActionRemote}" \
 	--curate \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with local search links
 output-samples: output-samples-local
@@ -234,8 +201,90 @@ generate-output-remote: nix-build output-samples-remote
 # nix build (local) run
 generate-output-local: nix-build output-samples-local
 
+# project vim
+proj-v:
+	vim ./org/doc-reform.org
+
+# project emacs, cli (single instance open)
+proj-e:
+	emacsclient -F -c -a -f ./org/doc-reform.org
+
+# project emacs, cli (multiple instance, no copy & paste)
+proj:
+	emacsclient -nw -a -f ./org/doc-reform.org
+
+# project emacs, gui
+proj-emacs:
+	emacs ./org/doc-reform.org &
+
+# search project
+fzf:
+	echo -n "what to search project for?: "; \
+	read FIND; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+
+# search org files directory
+fzf-org:
+	echo -n "what to search org directory for?: "; \
+	read FIND; \
+	cd ./org; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})"; \
+	cd -;
+
+# search org files directory, emacs editor
+fzf-org-e:
+	echo -n "what to search org directory for?: "; \
+	read FIND; \
+	cd ./org; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(emacsclient -F -c -a -f {1})"; \
+	cd -;
+
+# search org files directory
+fzf-nix:
+	echo -n "what to search nix files for?: "; \
+	read FIND; \
+	rg --files-with-matches --no-messages "$${FIND}" *.nix makefile .envrc | \
+	fzf --multi --ansi --print0 \
+	  --preview-window=right:66% \
+	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	  --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+
+# search org files directory
+fzf-nix-e:
+	echo -n "what to search nix files for? (emacs): "; \
+	read FIND; \
+	rg --files-with-matches --no-messages "$${FIND}" *.nix makefile .envrc | \
+	fzf --multi --ansi --print0 \
+	  --preview-window=right:66% \
+	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	  --bind="enter:execute(emacsclient -F -c -a -f {1})";
+
+# search project source files directory
+fzf-src:
+	echo -n "what to search source files for?: "; \
+	read FIND; \
+	cd ./src/doc_reform; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+	cd -;
+
 # preview org files vim
-files-vim:
+files-vi:
 	fd --max-depth 6 --type file -g "*" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -243,7 +292,7 @@ files-vim:
 	  --bind="enter:execute(nvim {})"; \
 
 # preview org files emacs
-files-emacs:
+files-e:
 	fd --max-depth 6 --type file -g "*" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -251,7 +300,7 @@ files-emacs:
 	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
 
 # preview org files vim
-org-vim:
+org-v:
 	cd ./org; \
 	fd --max-depth 5 --type file -g "*.org" | sort \
 	| fzf \
@@ -261,7 +310,7 @@ org-vim:
 	cd -
 
 # preview org files emacs
-org-emacs:
+org-e:
 	cd ./org; \
 	fd --max-depth 5 --type file -g "*.org" | sort \
 	| fzf \
@@ -270,108 +319,48 @@ org-emacs:
 	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
 	cd -
 
-## search org files (view in vim)
-#org-v find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(nvim -c \"silent! /{{find}}\" {1})"; \
-#	cd -
-#
-## search org files (view in emacsclient)
-#org-e find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
-#	cd -
-#
-## search tips.org files (view in emacs)
-#org-E find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacs {} &)"; \
-#	cd -
-#
-## search for in directory specified (view in vim, uses rg & fzf) ["find" for emacs]
-#sDir-v find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(nvim -c \"silent! /{{find}}\" {1})"; \
-#	cd -
-#
-## search for in directory specified (view in emacs, uses rg & fzf) ["search" for emacs]
-#sDir-e find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
-#	cd -
-#
-## search for in directory specified (view in emacs, uses rg & fzf) ["search" for emacs]
-#sDir-E find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacs {} &)"; \
-#	cd -
-
 # show markup pod source selections
 markup:
-	ls -1 --color=always {{SpinePOD}}
-	ls -1 -d --color=always {{SpinePOD}}/*/
+	ls -1 --color=always $${SpinePOD}
+	ls -1 -d --color=always $${SpinePOD}/*/
 
 # show markup pod source tree
 markup-pod-tree:
-	exa -alT --git -I'.git|.dub|*_' --color=always -L5 ${SpinePOD} | less -R
+	exa -alT --git -I'.git|.dub|*_' --color=always -L5 $${SpinePOD} | less -R
 
 # show markup pod source tree
 tree-src:
-	exa -alT --git -I'*_' --color=always -L5 ${SpineSRC}/doc_reform ${SpinePROJ}/views | less -R
+	exa -alT --git -I'*_' --color=always -L5 $${SpineSRC}/doc_reform $${SpinePROJ}/views | less -R
 
 ## show markup pod source tree
 #tree-src-omit:
-#  exa -alT --git -I'.git|.dub|*_' --color=always -L5 ${SpineSRC} ${SpinePROJ}/views | less -R
+#  exa -alT --git -I'.git|.dub|*_' --color=always -L5 $${SpineSRC} $${SpinePROJ}/views | less -R
 
 # show markup pod source tree
 tree-src-search-cgi:
-	  exa -alT --git -I'*_' --color=always -L5 ${SpineSearchCGI}/src ${SpineSearchCGI}/views | less -R
+	exa -alT --git -I'*_' --color=always -L5 $${SpineSearchCGI}/src $${SpineSearchCGI}/views | less -R
 
 # show markup files
 markup-files:
-	cd {{SpinePOD}}; \
+	cd $${SpinePOD}; \
 	find . -type f -iname "*sst"; \
 	cd -; \
-	echo {{SpinePOD}}
-# find {{SpinePOD}}/. -type f -iname "*sst"
+	echo $${SpinePOD}
+# find $${SpinePOD}/. -type f -iname "*sst"
 
 # preview markup files vim
-markup-files-vim:
-	cd {{SpinePOD}}; \
+markup-files-vi:
+	cd $${SpinePOD}; \
 	fd --max-depth 5 --type file -g "*.ss?" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
 	  --preview-window=right:66% \
-	  --bind="enter:execute(nvim {})"; \
+	  --bind="enter:execute(vim {})"; \
 	cd -
 
 # preview markup files emacs
-markup-files-emacs:
-	cd {{SpinePOD}}; \
+markup-files-e:
+	cd $${SpinePOD}; \
 	fd --max-depth 5 --type file -g "*.ss?" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -391,88 +380,67 @@ markup-samples: markup-pod-samples markup-file-samples
 
 # markup samples pod manifests
 markup-pod-samples:
-	echo "{{SpinePOD}}"; \
-	find {{SpinePOD}} -name pod.manifest | sort
+	echo "$${SpinePOD}"; \
+	find $${SpinePOD} -name pod.manifest | sort
 
-#find {{SpinePOD}} -name pod.manifest | sed -E 's:.+?(([/][^/]+){2})$:\1:'
+#find $${SpinePOD} -name pod.manifest | sed -E 's:.+?(([/][^/]+){2})$:\1:'
 
 # markup samples sst files
 markup-file-samples:
-	echo "{{SpinePOD}}"; \
-	find {{SpinePOD}} -name *.ss[tm] | sort
-
-# markup_dir_samples:
-#   find data/sisudir/media/text -name *.ss[tm] | sort
-
-# version_tag:
-#   echo "DRV=0.12.0; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform $$\{DRV}\" HEAD" && \
-#   echo "git tag -f doc-reform_v0.12.0 -m\"doc-reform spine-0.12.0\" HEAD"
+	echo "$${SpinePOD}"; \
+	find $${SpinePOD} -name *.ss[tm] | sort
 
 # archive spine output (www)
 spineWWWarchive:
 	cd /srv/www ; \
-	rm spine_output.{{Date}}.tar.bz2 ; \
-	sudo tar --exclude='./spine/latex' --exclude='./spine/pod' --exclude='./spine/*_' -cjf spine_output.{{Date}}.tar.bz2 ./spine ; \
+	rm spine_output.$${Date}.tar.bz2 ; \
+	sudo tar --exclude='./spine/latex' --exclude='./spine/pod' --exclude='./spine/*_' -cjf spine_output.$${Date}.tar.bz2 ./spine ; \
 	cd -
 
 # rsync archived spine output to Linode
 spineWWWrsyncLinode:
-	rsync -v /srv/www/spine_output.{{Date}}.tar.bz2 linode:./stage/. ; \
+	rsync -v /srv/www/spine_output.$${Date}.tar.bz2 linode:./stage/. ; \
 	rsync -v /var/www/sqlite/spine.search.db linode:./stage/. ; \
-	echo "tar -xf ../spine_output.{{Date}}.tar.bz2"
+	echo "tar -xf ../spine_output.$${Date}.tar.bz2"
 
 # get project external dependencies
 depends_get:
 	dub upgrade; \
-	cd {{gwd}} && \
-	echo "{{dirs_loc}}" && \
-	for dir in {{dirs_loc}}; do \
-	  if [[ -d ${dir} ]]; then \
-	    echo {{gwd}}/${dir} && \
-	    if [[ "imageformats" == ${dir} ]]; then \
-	      echo {{gwd}}/${dir} && \
-	      rm -rvf {{gwd}}/${dir} && \
-	      git clone --depth=1 https://github.com/tjhann/${dir} && \
-	      cd ${dir} && \
+	cd $${gwd} && \
+	echo "$${dirs_loc}" && \
+	for dir in $${dirs_loc}; do \
+	  if [[ -d $${dir} ]]; then \
+	    echo $${gwd}/$${dir} && \
+	    if [[ "imageformats" == $${dir} ]]; then \
+	      echo $${gwd}/$${dir} && \
+	      rm -rvf $${gwd}/$${dir} && \
+	      git clone --depth=1 https://github.com/tjhann/$${dir} && \
+	      cd $${dir} && \
 	      echo $$PWD && \
-	      echo "${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../${dir}.meta && \
-	      echo "https://github.com/tjhann/${dir}"           >> ../${dir}.meta && \
-	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../${dir}.meta && \
-	      cd {{gwd}} && \
-	      rm -rf {{gwd}}/${dir}/.git; \
-	    elif [[ "d2sqlite3" == ${dir}  || "D-YAML" == ${dir} || "tinyendian" == ${dir} ]]; then \
-	      echo {{gwd}}/${dir} && \
-	      rm -rvf {{gwd}}/${dir} && \
-	      git clone --depth=1 https://github.com/dlang-community/${dir} && \
-	      cd {{gwd}}/${dir} && \
-	      echo "${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../${dir}.meta && \
-	      echo "https://github.com/dlang-community/${dir}"  >> ../${dir}.meta && \
-	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../${dir}.meta && \
-	      cd {{gwd}} && \
-	      rm -rf {{gwd}}/${dir}/.git; \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/tjhann/$${dir}"           >> ../$${dir}.meta && \
+	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${gwd}/$${dir}/.git; \
+	    elif [[ "d2sqlite3" == $${dir}  || "D-YAML" == $${dir} || "tinyendian" == $${dir} ]]; then \
+	      echo $${gwd}/$${dir} && \
+	      rm -rvf $${gwd}/$${dir} && \
+	      git clone --depth=1 https://github.com/dlang-community/$${dir} && \
+	      cd $${gwd}/$${dir} && \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/dlang-community/$${dir}"  >> ../$${dir}.meta && \
+	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${gwd}/$${dir}/.git; \
 	    fi; \
 	  fi; \
 	done; \
-	cd {{hwd}}
+	cd $${hwd}
 
 # get and set project external dependencies
 depends_set: depends_get
 	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
 
-# markup_samples:
-# 	find data/pod -name pod.manifest | cut -f 1-3 -d / | sort; \
-# 	find data/sisudir/media/text -name *.ss[tm] | sort
-# 
-# markup_pod_samples:
-# 	find data/pod -name pod.manifest | cut -f 1-3 -d / | sort
-# 
-# markup_dir_samples:
-# 	find data/sisudir/media/text -name *.ss[tm] | sort
-# 
-version_tag:
-	echo "DRV=0.12.0; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform $$\{DRV}\" HEAD" && \
-	echo "git tag -f doc-reform_v0.12.0 -m\"doc-reform spine-0.12.0\" HEAD"
-
 changelog_:
 	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" > CHANGELOG_
 
@@ -489,11 +457,6 @@ gitArchive:
 	git archive -v --format=tar --prefix=spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)/ HEAD | gzip > ./tarballGitHEAD/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz && \
 	echo "to unzip: tar -xzf spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz"
 
-# git archive project, produce current state .tar.gz
-# gitArchive:
-# 	git archive -v --format=tar --prefix="spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}/" HEAD | gzip > ./tarballGitHEAD/spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}.tar.gz && \
-# 	echo "to unzip: tar -xzf spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}.tar.gz"
-
 # remove test tarball dir
 nixGitHEADtarballClean:
 	if [ -d "./tarballGitHEAD" ]; then \
@@ -505,23 +468,22 @@ nixGitHEADtarballTar:
 	if [ ! -d "./tarballGitHEAD" ]; then \
 	  mkdir ./tarballGitHEAD; \
 	fi; \
-	git archive -v --format=tar --prefix="spine-${PROG_VER_DECLARED}/" HEAD | \
-	gzip > ./tarballGitHEAD/spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz && \
-	cp -v ./tarballGitHEAD/spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz ./tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz && \
-	echo "to unzip: tar -xzf spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz"; \
-	echo "to unzip: tar -xzf spine-${PROG_VER_DECLARED}.tar.gz"
+	git archive -v --format=tar --prefix="spine-$${PROG_VER_DECLARED}/" HEAD | \
+	gzip > ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz && \
+	cp -v ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz && \
+	echo "to unzip: tar -xzf spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz"; \
+	echo "to unzip: tar -xzf spine-$${PROG_VER_DECLARED}.tar.gz"
 
 # check test tarball
 nixGitHEADtarballCheck:
-	nix flake check file://${hwd}/tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz; \
-	nix flake lock file://${hwd}/tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz; \
-	nix flake show file://${hwd}/tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz;
+	nix flake check file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz; \
+	nix flake lock file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz; \
+	nix flake show file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz;
 
 # build test tarball
 nixGitHEADtarballBuild:
-	echo "nix build file://${hwd}/tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs"
-	nix build file://${hwd}/tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs
-	#nix build "./tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz#spine" --print-build-logs
+	echo "nix build file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs"; \
+	nix build file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs
 
 # clean create check & build test tarball
 nixGitHEADtarball: nixGitHEADtarballClean nixGitHEADtarballTar nixGitHEADtarballCheck nixGitHEADtarballBuild
@@ -588,22 +550,17 @@ set_latest: set_depends flake_update rm_flakelock
 dub_upgrade:
 	$(DUB) upgrade
 
-default: ldc
+dc: ldc
+
+compile: ldc
 
 all: dmd ldc gdc
 
 all_ver: dmd_ver ldc_ver gdc_ver
 
-all_debug: dmd_debug gdc_debug ldc_debug
-
 meson_clean_build_dir:
 	rm -r build; mkdir build
 
-meson_build: meson_clean_build_dir
-	meson --buildtype=debugoptimized build
-	ninja -C build
-	notify-send -t 0 'D meson build ldc compiled test release executable ready' 'spine'
-
 meson_redo: meson_clean_build_dir meson_build
 
 meson_project_build_clean: clean skel tangle dub_upgrade meson_build
@@ -614,46 +571,33 @@ all_clean: clean tangle dmd ldc gdc
 
 all_ver_clean: clean tangle dmd_ver ldc_ver gdc_ver
 
-all_debug_ver: dmd_debug_ver gdc_debug_ver ldc_debug_ver
-
-all_debug_clean_ver: clean tangle dmd_debug_ver gdc_debug_ver ldc_debug_ver
-
 dmd: dub_upgrade
-	$(DUB) --compiler=dmd --config=dmd --build=release-nobounds
+	$(DUB) --compiler=dmd --build=dmd --build=release-nobounds
 	notify-send -t 0 'D dmd compiled test release executable ready' 'spine-dmd'
 
-dmd_debug:
-	$(DUB) --compiler=dmd --config=dmd --build=debug
-
 # assumes git tags with program version
 dmd_ver: dub_upgrade
-	$(DUB) --compiler=dmd --config=dmd-version
+	$(DUB) --compiler=dmd --build=dmd-version
 	mv bin/spine-dmd-ver bin-archive/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-dmd
 	notify-send -t 0 'D dmd compiled test release executable ready' 'spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-dmd'
 
 dmd_clean_ver: clean tangle dmd_ver
 
 dmd_rel: expunge skel tangle
-	$(DUB) --compiler=dmd --config=spine-release
+	$(DUB) --compiler=dmd --build=spine-release
 
 dmd_rel_tangle: tangle
-	$(DUB) --compiler=dmd --config=spine-dmd
+	$(DUB) --compiler=dmd --build=spine-dmd
 
 dmd_rel_expunge_tangle: expunge skel tangle dmd_rel_tangle
 
-dmd_debug_tangle: tangle
-	$(DUB) --compiler=dmd --config=spine-dmd-debug
-
 gdc: dub_upgrade
-	$(DUB) --compiler=gdc --config=gdc
+	$(DUB) --compiler=gdc --build=gdc
 	notify-send -t 0 'D gdc compiled test release executable ready' 'spine-gdc'
 
-gdc_debug:
-	$(DUB) --compiler=gdc --config=gdc --build=debug
-
 # assumes git tags with program version
 gdc_ver: dub_upgrade
-	$(DUB) --compiler=gdc --config=gdc-version
+	$(DUB) --compiler=gdc --build=gdc-version
 	mv bin/spine-gdc-ver bin-archive/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-gdc
 	notify-send -t 0 'D gdc compiled test release executable ready' 'spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-gdc'
 
@@ -667,16 +611,10 @@ gdc_rel_tangle: tangle
 
 gdc_rel_expunge_tangle: expunge skel tangle gdc_rel_tangle
 
-gdc_debug_tangle: tangle
-	$(DUB) --compiler=gdc --config=spine-gdc-debug
-
 ldc: dub_upgrade
-	$(DUB) --compiler=ldc2 --config=ldc --build=release
+	$(DUB) --compiler=ldc2 --build=ldc2 --build=release
 	notify-send -t 0 'D ldc compiled test release executable ready' 'spine-ldc'
 
-ldc_debug:
-	$(DUB) --compiler=ldc2 --config=ldc --build=debug
-
 # assumes git tags with program version
 ldc_ver: dub_upgrade
 	$(DUB) --compiler=ldc2 --config=ldc-version
@@ -693,9 +631,6 @@ ldc_rel_tangle: tangle
 
 ldc_rel_expunge_tangle: expunge skel tangle ldc_rel_tangle
 
-ldc_debug_tangle: tangle
-	$(DUB) --compiler=ldc2 --config=spine-ldc-debug
-
 reinit: clean skel tangle
 
 skel:
@@ -780,6 +715,122 @@ restart: clean tangle
 find_pods:
 	$(SiSU_MARKUP_SAMPLES_FIND_PODS)
 
+testrun_find:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	data/pod/sisu-manual
+
+testrun_find_pod_source:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --source \
+	--output-dir=tmp/program_output_pod
+
+testrun_find_pod_pod:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --pod \
+	--output-dir=tmp/program_output_pod
+
+testrun_find_pod_html:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --html \
+	--output-dir=tmp/program_output_pod
+
+testrun_find_pod_epub:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --epub \
+	--output-dir=tmp/program_output_pod
+
+testrun_find_pod_all:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod
+
+testrun_paths:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	data/pod/sisu-manual
+
+testrun_paths_pod_source:
+	spine -v --source \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
+
+testrun_paths_pod_pod:
+	spine -v --pod \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
+
+testrun_paths_pod_html:
+	spine -v --html \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
+
+testrun_paths_pod_epub:
+	spine -v --epub \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
+
+testrun_paths_pod_all:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
+
+testrun_find_dir_source:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --source \
+	--output-dir=tmp/program_output_dir
+
+testrun_find_dir_pod:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --pod \
+	--output-dir=tmp/program_output_dir
+
+testrun_find_dir_html:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --html \
+	--output-dir=tmp/program_output_dir
+
+testrun_find_dir_epub:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --epub \
+	--output-dir=tmp/program_output_dir
+
+testrun_find_dir_all:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_dir
+
+testrun_filelist_dir_source:
+	spine -v --source \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
+testrun_filelist_dir_pod:
+	spine -v --pod \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
+testrun_filelist_dir_html:
+	spine -v --html \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
+testrun_filelist_dir_epub:
+	spine -v --epub \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
+testrun_filelist_dir_all:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
 dmd_testrun_find:
 	./bin/spine-dmd -v --source --html --epub --sqlite-discrete \
 --sqlite-create --sqlite-update \
@@ -1160,9 +1211,6 @@ tangle_maker:
 			(org-babel-tangle) \
 			(kill-buffer)) '($$ORGFILES)))" 2>&1
 
-lorri_shell:
-	lorri shell
-
 # nix-shell
 nix-shell:
 	nix-shell -I .envrc
@@ -1172,7 +1220,7 @@ nix-shell-pure:
 
 # nix-shell (with local tools, presumably latest dlang compiler & build tools (ldc & dub))
 nix-shell-updated:
-	nix-shell -I nixpkgs=/nix/nixpkgs --pure
+	nix-shell -I nixpkgs=/srv/nix/nixpkgs --pure
 
 # shell.nix (with shebang)
 shell:
@@ -1214,7 +1262,7 @@ _flake-show-derivation:
 	nix show-derivation |jq;
 
 nix-develop:
-	nix develop -f default.nix -I nixpkgs=/nix/nixpkgs
+	nix develop -f default.nix -I nixpkgs=/srv/nix/nixpkgs
 
 # nix flake show
 flake-show: _flake-show-package _flake-show-name _flake-show-derivation
@@ -1227,13 +1275,9 @@ flake-build: _flake-show-name
 flake-reset-build: _flake-lock-reset _flake-show-name
 	nix build --print-build-logs
 
-# nix-build flake spine debug
-flake-build-debug:
-	nix build --debug
-
 # nix-build spine (with local tools, presumably latest dlang compiler & build tools (ldc & dub))
 flake-build-use-tools-new:
-	nix build --print-build-logs -I nixpkgs=/nix/nixpkgs
+	nix build --print-build-logs -I nixpkgs=/srv/nix/nixpkgs
 
 # tangle-build-flake
 flake-tangle-build: org-tangle flake-build
@@ -1253,6 +1297,10 @@ flake-build-search:
 gitsnapshot: distclean tangle
 	git commit -a
 
-.PHONY : all build rebuild debug release \
+version_tag:
+	echo "DRV=0.12.0; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform spine-$$\{DRV}\" HEAD"; \
+	echo "git tag -f doc-reform_v0.12.0 -m\"doc-reform spine-0.12.0\" HEAD"
+
+.PHONY : all build rebuild release \
 	distclean init \
 	tangle gitsnapshot
diff --git a/org/config_git.org b/org/config_git.org
index 592021d..8c164e9 100644
--- a/org/config_git.org
+++ b/org/config_git.org
@@ -17,7 +17,7 @@
 
 - [[./doc-reform.org][doc-reform.org]]  [[./][org/]]
 
-* spine
+* git
 ** .gitignore :gitignore:
 
 #+HEADER: :tangle "../.gitignore"
diff --git a/org/config_make.org b/org/config_make.org
index 9dca7f9..7315a8d 100644
--- a/org/config_make.org
+++ b/org/config_make.org
@@ -6,7 +6,7 @@
 #+EMAIL:       [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
 #+COPYRIGHT:   Copyright (C) 2015 - 2023 Ralph Amissah
 #+LANGUAGE:    en
-#+STARTUP:     content hideblocks hidestars noindent entitiespretty
+#+STARTUP:     show4levels hideblocks hidestars noindent entitiespretty
 #+PROPERTY:    header-args  :exports code
 #+PROPERTY:    header-args+ :noweb yes
 #+PROPERTY:    header-args+ :results no
@@ -48,84 +48,10 @@
 #+HEADER: :tangle ../makefile
 #+HEADER: :noweb yes
 #+BEGIN_SRC makefile
-<<make_set_var_git_version>>
-<<make_set_var_dub>>
-<<make_set_var_project_details>>
-<<make_set_var_emacs_org>>
-<<make_set_var_markup_samples_pods>>
-# <<make_set_var_markup_samples_search_dirs>>
-<<make_initialize>>
-<<make_set_nix>>
-<<make_cmd_list>>
-<<make_cmd_org>>
-<<make_cmd_project>>
-<<make_cmd_output_doc>>
-<<make_cmd_search_project>>
-<<make_cmd_search_markup_samples>>
-<<make_cmd_dev_misc>>
-# <<make_find_markup_samples_0_pod_and_dir>>
-# <<make_find_markup_samples_1_pod>>
-# <<make_find_markup_samples_2_dir>>
-<<make_version_tag>>
-<<make_changelog>>
-<<make_project_zip_archive>>
-<<nixGitHEADtarball>>
-<<make_get_project_dependencies_github>>
-<<make_dub_upgrade>>
-<<make_compile_compiler_default>>
-<<make_compile_compiler_all>>
-<<make_meson_build>>
-<<make_clean_tangle_compile_all_clean>>
-<<make_dub_compile_dmd_default>>
-<<make_dub_compile_dmd_release>>
-<<make_dub_compile_gdc_default>>
-<<make_dub_compile_gdc_release>>
-<<make_dub_compile_ldc_default>>
-<<make_dub_compile_ldc_release>>
-<<make_initialization_operations_parts>>
-<<make_initialization_operations_git_version>>
-<<make_initialization_operations_assemble>>
-<<make_project_testrun_0_find_pods>>
-<<make_project_testrun_1>>
-<<make_project_testrun_2>>
-<<make_project_testrun_3>>
-<<make_project_testrun_4>>
-<<make_project_testrun_5>>
-<<make_project_testrun_6>>
-<<make_project_testrun_7>>
-<<make_project_testrun_8>>
-<<make_project_testrun_9>>
-<<make_project_testrun_10>>
-<<make_project_testrun_11>>
-<<make_project_testrun_12>>
-<<make_tangle_0>>
-<<make_tangle_1>>
-<<make_nix_project>>
-<<make_git_snapshot>>
-<<make_phony>>
-#+END_SRC
-
-*** settings [+2] :settings:
-**** git version stamp :git:version:
-
-#+NAME: make_set_var_git_version
-#+BEGIN_SRC makefile
 PROG_VER_GIT :=$(shell echo `git describe --long --tags | sed -e "s/^[ a-z_-]\+\([0-9.]\+\)/\1/;s/\([^-]*-g\)/r\1/;s/-/./g"`)
 PROG_VER_DECLARED :=$(shell echo `cat ./views/version.txt | grep --color=never "enum" | sed 's/.\+(\([0-9]\+\),[ \t]\+\([0-9]\+\),[ \t]\+\([0-9]\+\)[ \t]*).\+/\1.\2.\3/g'`)
-#+END_SRC
-
-**** dub (build tool) :dub:
-
-#+NAME: make_set_var_dub
-#+BEGIN_SRC makefile
 DUB=dub
 DUB_FLAGS=-v --force --compiler=
-#+END_SRC
-
-**** Project Details :project:spine:
-
-#+NAME: make_set_var_project_details
-#+BEGIN_SRC makefile
 PRG_NAME=doc-reform
 PRG_NICKAME=spine
 PRG_NAME_DIR=$(shell echo `echo $(PRG_NAME) | sed -e "s/-/_/g"`)
@@ -134,12 +60,6 @@ PRG_SRCDIR=./src
 PRG_BIN=$(PRG_NAME)
 PRG_BINDIR=./bin
 PRG_DOCDIR=./docs
-#+END_SRC
-
-**** Emacs Org settings :settings:emacs:org:tangle:
-
-#+NAME: make_set_var_emacs_org
-#+BEGIN_SRC makefile
 EMACSLISP=/usr/share/emacs/site-lisp
 ORG_VER_AVAILABLE=$(shell echo `ls -d ~/.emacs.d/elpa/org-???????? | cut -d '-' -f2`)
 EMACSLISP_ORG=~/.emacs.d/elpa/org-$($(shell echo $(ORG_VER_AVAILABLE)))
@@ -148,13 +68,6 @@ EMACSLISP_ORG_CONTRIB=~/.emacs.d/elpa/org-plus-contrib-$($(shell echo $(ORG_CONT
 ORGFILELIST=$(shell echo `ls -1 org/*.org`)
 ORGFILES=""
 ORGDIR :=$(shell echo `pwd`)
-#+END_SRC
-
-**** Markup Samples
-***** pods
-
-#+NAME: make_set_var_markup_samples_pods
-#+BEGIN_SRC makefile
 SiSU_MARKUP_SAMPLES_FIND_PODS= \
 find data/pod -maxdepth 2 -name pod.manifest | cut -f 1-3 -d / | sort
 
@@ -185,88 +98,49 @@ data/pod/through_the_looking_glass.lewis_carroll \
 data/pod/two_bits.christopher_kelty \
 data/pod/un_contracts_international_sale_of_goods_convention_1980 \
 data/pod/viral_spiral.david_bollier
-#+END_SRC
-
-***** dir
-
-#+NAME: make_set_var_markup_samples_search_dirs
-#+BEGIN_SRC makefile
-SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND = \
-find data/sisudir/media/text -name *.ss[tm] | sort | xargs
-
-SiSU_MARKUP_SAMPLES_DIR = \
-data/sisudir/media/text/accelerando.charles_stross.sst \
-data/sisudir/media/text/alices_adventures_in_wonderland.lewis_carroll.sst \
-data/sisudir/media/text/content.cory_doctorow.sst \
-data/sisudir/media/text/democratizing_innovation.eric_von_hippel.sst \
-data/sisudir/media/text/down_and_out_in_the_magic_kingdom.cory_doctorow.sst \
-data/sisudir/media/text/ffa_tmp.sst \
-data/sisudir/media/text/for_the_win.cory_doctorow.sst \
-data/sisudir/media/text/free_as_in_freedom_2.richard_stallman_and_the_free_software_revolution.sam_williams.richard_stallman.sst \
-data/sisudir/media/text/free_culture.lawrence_lessig.sst \
-data/sisudir/media/text/free_for_all.peter_wayner.sst \
-data/sisudir/media/text/gpl2.fsf.sst \
-data/sisudir/media/text/gpl3.fsf.sst \
-data/sisudir/media/text/gullivers_travels.jonathan_swift.sst \
-data/sisudir/media/text/little_brother.cory_doctorow.sst \
-data/sisudir/media/text/sisu_markup.sst \
-data/sisudir/media/text/sisu_markup_stress_test.sst \
-data/sisudir/media/text/sisu_markup_test.sst \
-data/sisudir/media/text/table_special_markup.sst \
-data/sisudir/media/text/the_autonomous_contract.ralph_amissah.sst \
-data/sisudir/media/text/the_cathedral_and_the_bazaar.eric_s_raymond.sst \
-data/sisudir/media/text/the_public_domain.james_boyle.sst \
-data/sisudir/media/text/the_wealth_of_networks.yochai_benkler.sst \
-data/sisudir/media/text/through_the_looking_glass.lewis_carroll.sst \
-data/sisudir/media/text/two_bits.christopher_kelty.sst \
-data/sisudir/media/text/un_contracts_international_sale_of_goods_convention_1980.sst \
-data/sisudir/media/text/viral_spiral.david_bollier.sst
-
-#+END_SRC
-
-****** sample markup file list
-
-#+NAME: make_find_markup_samples_0_pod_and_dir
-#+BEGIN_SRC makefile
-markup_samples:
-	find data/pod -name pod.manifest | cut -f 1-3 -d / | sort; \
-	find data/sisudir/media/text -name *.ss[tm] | sort
-
-#+END_SRC
-
-#+NAME: make_find_markup_samples_1_pod
-#+BEGIN_SRC makefile
-markup_pod_samples:
-	find data/pod -name pod.manifest | cut -f 1-3 -d / | sort
-
-#+END_SRC
-
-#+NAME: make_find_markup_samples_2_dir
-#+BEGIN_SRC makefile
-markup_dir_samples:
-	find data/sisudir/media/text -name *.ss[tm] | sort
-
-#+END_SRC
-
-**** nix
+Date                    := `date "+%Y%m%d"`
+SpineBIN                := "$${SpineBIN}" # './result/bin'
+SpineOUT                := "$${SpineOUT}" # '/srv/www/spine'
+SpinePOD                := "$${SpinePOD}" # '~/grotto/repo/git.repo/projects/doc-reform/data/markup/spine-samples/markup/pod'
+SpineSearchActionLocal  := 'http://localhost/spine_search'
+SpineSearchActionRemote := 'https://sisudoc.org/spine_search'
+SpineCGIform            := 'spine_search'
+SpineSQLdb              := 'spine.search.db'
+hwd                     := `pwd`
+gwd                     := `pwd` + "/src/ext_depends"
+deps                    := "`ls -gx './src/ext_depends'`"
+dirs_loc                := "`ls -gx '.'`"
+#dirs                    := "`ls -gx $${gwd}`"
+
+default: flake-check
+
+flake-check:
+	nix flake update; \
+	nix flake check; \
+	echo -e 'nix flake show ❯❯\n'; \
+	nix flake show; \
+	echo -e '\n❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell" -c zsh\n'; \
+	echo -e '❯❯ nix develop\n❯❯ nix develop -c zsh\n'; \
+	echo -e '❯❯ nix build ".#spine-ldc" --print-build-logs |& nom\n❯❯ nix build ".#spine-dmd" --print-build-logs |& nom\n'; \
+	echo -e '❯❯ make -s\n❯❯ make -s nix-build-ldc\n❯❯ make -s nix-build-dmd\n'; \
+	echo -e '❯❯ make -s ldc\n❯❯ make -s dmd\n'; \
+	echo -e '❯❯ $(DUB) --compiler=ldc2 --build=ldc2\n❯❯ $(DUB) --compiler=dmd --build=dmd\n';
 
-#+NAME: make_set_nix
-#+BEGIN_SRC makefile
 nix-devshell:
-	echo -ne "\n- nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell\n\n- nix build .#default --print-build-logs\n- nix build .#spine-dmd --print-build-logs\n- nix build .#spine-ldc --print-build-logs\n- nix build .#spine-gdc --print-build-logs\n\n"; \
-	nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
+	echo -ne '\n❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"\n\n❯❯ nix build ".#default" --print-build-logs\n❯❯ nix build ".#spine-dmd" --print-build-logs\n❯❯ nix build ".#spine-ldc" --print-build-logs\n❯❯ nix build ".#spine-gdc" --print-build-logs\n\n'; \
+	nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"
 
 nix-build-default:
-	nix build .#default --print-build-logs
+	nix build ".#default" --print-build-logs
 
 nix-build-dmd:
-	nix build .#spine-dmd --print-build-logs
+	nix build ".#spine-dmd" --print-build-logs
 
 nix-build-ldc:
-	nix build .#spine-ldc --print-build-logs
+	nix build ".#spine-ldc" --print-build-logs
 
 nix-build-gdc:
-	nix build .#spine-gdc --print-build-logs
+	nix build ".#spine-gdc" --print-build-logs
 
 buildPhase:
 	HOME=$${PWD}; \
@@ -284,7 +158,7 @@ buildPhase:
 	fi; \
 	echo "$${DC_} used as D compiler to build $${pname}"; \
 	export DFLAGS="-O2 -inline"; \
-	dub build --compiler=$${DC} --build=release --combined --skip-registry=all;
+	dub build --compiler=$${DC} --build=$${DC_} --combined --skip-registry=all;
 
 checkPhase:
 	runHook preCheck; \
@@ -303,131 +177,70 @@ postInstall:
 	echo "$${out}/share/cgi-bin"; \
 	echo `ls -la $${out}/bin/spine`
 
-#+END_SRC
-
-*** initialize
-
-#+NAME: make_initialize
-#+BEGIN_SRC makefile
-Date                    := `date "+%Y%m%d"`
-SpineBIN                := "${SpineBIN}" # './result/bin'
-SpineOUT                := "${SpineOUT}" # '/srv/www/spine'
-SpinePOD                := "${SpinePOD}" # '~/grotto/repo/git.repo/projects/project-spine/doc-reform-markup/spine-markup-samples/markup/pod'
-SpineSearchActionLocal  := 'http://localhost/spine_search'
-SpineSearchActionRemote := 'https://sisudoc.org/spine_search'
-SpineCGIform            := 'spine_search'
-SpineSQLdb              := 'spine.search.db'
-hwd                     := `pwd`
-gwd                     := `pwd` + "/src/ext_depends"
-deps                    := "`ls -gx './src/ext_depends'`"
-dirs_loc                := "`ls -gx '.'`"
-#dirs                    := "`ls -gx {{gwd}}`"
-
-#+END_SRC
-
-*** commands
-
-
-#+NAME: make_cmd_list
-#+BEGIN_SRC makefile
 commands:
-	rg --color=always -B1 "^[a-z]\w+:" makefile | less
+	rg --color=always -B1 "^[a-zA-Z_-]+:" makefile | page
 
-cmd:
-	rg --color=always -B1 "^[a-z]\w+:" makefile | bat
-
-#+END_SRC
+cmds:
+	rg --color=always -B1 "^[a-zA-Z_-]+:" makefile | page
 
-**** org tangle
-
-#+NAME: make_cmd_org
-#+BEGIN_SRC makefile
 # tangle org files
 org-tangle:
 	cd ./org; \
 	org-tangle *.org; \
 	cd -
 
-#+END_SRC
-
-**** project
-
-#+NAME: make_cmd_project
-#+BEGIN_SRC makefile
-# project vim
-proj-v:
-	nvim ./org/doc-reform.org
-
-# project emacs, cli (single instance open)
-proj-e:
-	emacsclient -F -c -a -f ./org/doc-reform.org
-
-# project emacs, cli (multiple instance, no copy & paste)
-proj:
-	emacsclient -nw -a -f ./org/doc-reform.org
-
-# project emacs, gui
-proj-emacs:
-	emacs ./org/doc-reform.org &
-
-#+END_SRC
-
-**** generate output
-
-#+NAME: make_cmd_output_doc
-#+BEGIN_SRC makefile
 # epub output
 out-epub:
-	{{SpineBIN}}/spine -v \
-	--epub --output={{SpineOUT}} {{SpinePOD}}/*
+	$${SpineBIN}/spine -v \
+	--epub --output=$${SpineOUT} $${SpinePOD}/*
 
 # html output with local search links
 out-html:
-	{{SpineBIN}}/spine -v --generated-by \
+	$${SpineBIN}/spine -v --generated-by \
 	--curate \
-	--html --html-link-search --html-link-curate --cgi-url-action="{{SpineSearchActionLocal}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--html --html-link-search --html-link-curate --cgi-url-action="$${SpineSearchActionLocal}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # latex output
 out-latex:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--latex \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # odf output
 out-odf:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--odf \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # sqlite output
 out-sqlite:
-	{{SpineBIN}}/spine -v \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	$${SpineBIN}/spine -v \
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with local search links
 output-samples-local:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--latex --latex-init \
 	--epub \
 	--html --html-link-search --html-link-pdf --html-link-curate --html-link-markup \
-	--cgi-sqlite-search-filename="{{SpineCGIform}}" --cgi-url-action="{{SpineSearchActionLocal}}" \
+	--cgi-sqlite-search-filename="$${SpineCGIform}" --cgi-url-action="$${SpineSearchActionLocal}" \
 	--curate \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with remote search links
 output-samples-remote:
-	{{SpineBIN}}/spine -v \
+	$${SpineBIN}/spine -v \
 	--generated-by \
 	--latex --latex-init \
 	--epub \
 	--html --html-link-search --html-link-pdf --html-link-curate \
-	--cgi-sqlite-search-filename="{{SpineCGIform}}" --cgi-url-action="{{SpineSearchActionRemote}}" \
+	--cgi-sqlite-search-filename="$${SpineCGIform}" --cgi-url-action="$${SpineSearchActionRemote}" \
 	--curate \
-	--sqlite-update --sqlite-db-filename="{{SpineSQLdb}}" \
-	--output={{SpineOUT}} {{SpinePOD}}/*
+	--sqlite-update --sqlite-db-filename="$${SpineSQLdb}" \
+	--output=$${SpineOUT} $${SpinePOD}/*
 
 # generate markup sample output with local search links
 output-samples: output-samples-local
@@ -438,14 +251,90 @@ generate-output-remote: nix-build output-samples-remote
 # nix build (local) run
 generate-output-local: nix-build output-samples-local
 
-#+END_SRC
+# project vim
+proj-v:
+	vim ./org/doc-reform.org
 
-**** search project
+# project emacs, cli (single instance open)
+proj-e:
+	emacsclient -F -c -a -f ./org/doc-reform.org
+
+# project emacs, cli (multiple instance, no copy & paste)
+proj:
+	emacsclient -nw -a -f ./org/doc-reform.org
+
+# project emacs, gui
+proj-emacs:
+	emacs ./org/doc-reform.org &
+
+# search project
+fzf:
+	echo -n "what to search project for?: "; \
+	read FIND; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+
+# search org files directory
+fzf-org:
+	echo -n "what to search org directory for?: "; \
+	read FIND; \
+	cd ./org; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})"; \
+	cd -;
+
+# search org files directory, emacs editor
+fzf-org-e:
+	echo -n "what to search org directory for?: "; \
+	read FIND; \
+	cd ./org; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(emacsclient -F -c -a -f {1})"; \
+	cd -;
+
+# search org files directory
+fzf-nix:
+	echo -n "what to search nix files for?: "; \
+	read FIND; \
+	rg --files-with-matches --no-messages "$${FIND}" *.nix makefile .envrc | \
+	fzf --multi --ansi --print0 \
+	  --preview-window=right:66% \
+	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	  --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+
+# search org files directory
+fzf-nix-e:
+	echo -n "what to search nix files for? (emacs): "; \
+	read FIND; \
+	rg --files-with-matches --no-messages "$${FIND}" *.nix makefile .envrc | \
+	fzf --multi --ansi --print0 \
+	  --preview-window=right:66% \
+	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	  --bind="enter:execute(emacsclient -F -c -a -f {1})";
+
+# search project source files directory
+fzf-src:
+	echo -n "what to search source files for?: "; \
+	read FIND; \
+	cd ./src/doc_reform; \
+	  rg --files-with-matches --no-messages "$${FIND}" | \
+	  fzf --multi --ansi --print0 \
+	    --preview-window=right:66% \
+	    --preview="rg --pretty --after-context 3 --before-context 2 -- \"$${FIND}\" {}" \
+	    --bind="enter:execute(vim -c \"silent! /$${FIND}\" {1})";
+	cd -;
 
-#+NAME: make_cmd_search_project
-#+BEGIN_SRC makefile
 # preview org files vim
-files-vim:
+files-vi:
 	fd --max-depth 6 --type file -g "*" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -453,7 +342,7 @@ files-vim:
 	  --bind="enter:execute(nvim {})"; \
 
 # preview org files emacs
-files-emacs:
+files-e:
 	fd --max-depth 6 --type file -g "*" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -461,7 +350,7 @@ files-emacs:
 	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
 
 # preview org files vim
-org-vim:
+org-v:
 	cd ./org; \
 	fd --max-depth 5 --type file -g "*.org" | sort \
 	| fzf \
@@ -471,7 +360,7 @@ org-vim:
 	cd -
 
 # preview org files emacs
-org-emacs:
+org-e:
 	cd ./org; \
 	fd --max-depth 5 --type file -g "*.org" | sort \
 	| fzf \
@@ -480,114 +369,48 @@ org-emacs:
 	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
 	cd -
 
-## search org files (view in vim)
-#org-v find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(nvim -c \"silent! /{{find}}\" {1})"; \
-#	cd -
-#
-## search org files (view in emacsclient)
-#org-e find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
-#	cd -
-#
-## search tips.org files (view in emacs)
-#org-E find:
-#	cd ./org; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacs {} &)"; \
-#	cd -
-#
-## search for in directory specified (view in vim, uses rg & fzf) ["find" for emacs]
-#sDir-v find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(nvim -c \"silent! /{{find}}\" {1})"; \
-#	cd -
-#
-## search for in directory specified (view in emacs, uses rg & fzf) ["search" for emacs]
-#sDir-e find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacsclient -nw -a -f {})"; \
-#	cd -
-#
-## search for in directory specified (view in emacs, uses rg & fzf) ["search" for emacs]
-#sDir-E find dir:
-#	cd {{dir}}; \
-#	rg --files-with-matches --no-messages "{{find}}" | \
-#	fzf --multi --ansi --print0 \
-#	  --preview-window=right:66% \
-#	  --preview="rg --pretty --after-context 3 --before-context 2 -- \"{{find}}\" {}" \
-#	  --bind="enter:execute(emacs {} &)"; \
-#	cd -
-
-#+END_SRC
-
-**** search markup samples
-
-#+NAME: make_cmd_search_markup_samples
-#+BEGIN_SRC makefile
 # show markup pod source selections
 markup:
-	ls -1 --color=always {{SpinePOD}}
-	ls -1 -d --color=always {{SpinePOD}}/*/
+	ls -1 --color=always $${SpinePOD}
+	ls -1 -d --color=always $${SpinePOD}/*/
 
 # show markup pod source tree
 markup-pod-tree:
-	exa -alT --git -I'.git|.dub|*_' --color=always -L5 ${SpinePOD} | less -R
+	exa -alT --git -I'.git|.dub|*_' --color=always -L5 $${SpinePOD} | less -R
 
 # show markup pod source tree
 tree-src:
-	exa -alT --git -I'*_' --color=always -L5 ${SpineSRC}/doc_reform ${SpinePROJ}/views | less -R
+	exa -alT --git -I'*_' --color=always -L5 $${SpineSRC}/doc_reform $${SpinePROJ}/views | less -R
 
 ## show markup pod source tree
 #tree-src-omit:
-#  exa -alT --git -I'.git|.dub|*_' --color=always -L5 ${SpineSRC} ${SpinePROJ}/views | less -R
+#  exa -alT --git -I'.git|.dub|*_' --color=always -L5 $${SpineSRC} $${SpinePROJ}/views | less -R
 
 # show markup pod source tree
 tree-src-search-cgi:
-	  exa -alT --git -I'*_' --color=always -L5 ${SpineSearchCGI}/src ${SpineSearchCGI}/views | less -R
+	exa -alT --git -I'*_' --color=always -L5 $${SpineSearchCGI}/src $${SpineSearchCGI}/views | less -R
 
 # show markup files
 markup-files:
-	cd {{SpinePOD}}; \
+	cd $${SpinePOD}; \
 	find . -type f -iname "*sst"; \
 	cd -; \
-	echo {{SpinePOD}}
-# find {{SpinePOD}}/. -type f -iname "*sst"
+	echo $${SpinePOD}
+# find $${SpinePOD}/. -type f -iname "*sst"
 
 # preview markup files vim
-markup-files-vim:
-	cd {{SpinePOD}}; \
+markup-files-vi:
+	cd $${SpinePOD}; \
 	fd --max-depth 5 --type file -g "*.ss?" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
 	  --preview-window=right:66% \
-	  --bind="enter:execute(nvim {})"; \
+	  --bind="enter:execute(vim {})"; \
 	cd -
 
 # preview markup files emacs
-markup-files-emacs:
-	cd {{SpinePOD}}; \
+markup-files-e:
+	cd $${SpinePOD}; \
 	fd --max-depth 5 --type file -g "*.ss?" | sort \
 	| fzf \
 	  --preview='bat --color "always" {}' \
@@ -607,86 +430,74 @@ markup-samples: markup-pod-samples markup-file-samples
 
 # markup samples pod manifests
 markup-pod-samples:
-	echo "{{SpinePOD}}"; \
-	find {{SpinePOD}} -name pod.manifest | sort
+	echo "$${SpinePOD}"; \
+	find $${SpinePOD} -name pod.manifest | sort
 
-#find {{SpinePOD}} -name pod.manifest | sed -E 's:.+?(([/][^/]+){2})$:\1:'
+#find $${SpinePOD} -name pod.manifest | sed -E 's:.+?(([/][^/]+){2})$:\1:'
 
 # markup samples sst files
 markup-file-samples:
-	echo "{{SpinePOD}}"; \
-	find {{SpinePOD}} -name *.ss[tm] | sort
-
-# markup_dir_samples:
-#   find data/sisudir/media/text -name *.ss[tm] | sort
-
-#+END_SRC
-
-**** dev: git, depends
-
-#+NAME: make_cmd_dev_misc
-#+BEGIN_SRC makefile
-# version_tag:
-#   echo "DRV=0.12.0; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform $$\{DRV}\" HEAD" && \
-#   echo "git tag -f doc-reform_v0.12.0 -m\"doc-reform spine-0.12.0\" HEAD"
+	echo "$${SpinePOD}"; \
+	find $${SpinePOD} -name *.ss[tm] | sort
 
 # archive spine output (www)
 spineWWWarchive:
 	cd /srv/www ; \
-	rm spine_output.{{Date}}.tar.bz2 ; \
-	sudo tar --exclude='./spine/latex' --exclude='./spine/pod' --exclude='./spine/*_' -cjf spine_output.{{Date}}.tar.bz2 ./spine ; \
+	rm spine_output.$${Date}.tar.bz2 ; \
+	sudo tar --exclude='./spine/latex' --exclude='./spine/pod' --exclude='./spine/*_' -cjf spine_output.$${Date}.tar.bz2 ./spine ; \
 	cd -
 
 # rsync archived spine output to Linode
 spineWWWrsyncLinode:
-	rsync -v /srv/www/spine_output.{{Date}}.tar.bz2 linode:./stage/. ; \
+	rsync -v /srv/www/spine_output.$${Date}.tar.bz2 linode:./stage/. ; \
 	rsync -v /var/www/sqlite/spine.search.db linode:./stage/. ; \
-	echo "tar -xf ../spine_output.{{Date}}.tar.bz2"
+	echo "tar -xf ../spine_output.$${Date}.tar.bz2"
 
 # get project external dependencies
 depends_get:
 	dub upgrade; \
-	cd {{gwd}} && \
-	echo "{{dirs_loc}}" && \
-	for dir in {{dirs_loc}}; do \
-	  if [[ -d ${dir} ]]; then \
-	    echo {{gwd}}/${dir} && \
-	    if [[ "imageformats" == ${dir} ]]; then \
-	      echo {{gwd}}/${dir} && \
-	      rm -rvf {{gwd}}/${dir} && \
-	      git clone --depth=1 https://github.com/tjhann/${dir} && \
-	      cd ${dir} && \
+	cd $${gwd} && \
+	echo "$${dirs_loc}" && \
+	for dir in $${dirs_loc}; do \
+	  if [[ -d $${dir} ]]; then \
+	    echo $${gwd}/$${dir} && \
+	    if [[ "imageformats" == $${dir} ]]; then \
+	      echo $${gwd}/$${dir} && \
+	      rm -rvf $${gwd}/$${dir} && \
+	      git clone --depth=1 https://github.com/tjhann/$${dir} && \
+	      cd $${dir} && \
 	      echo $$PWD && \
-	      echo "${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../${dir}.meta && \
-	      echo "https://github.com/tjhann/${dir}"           >> ../${dir}.meta && \
-	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../${dir}.meta && \
-	      cd {{gwd}} && \
-	      rm -rf {{gwd}}/${dir}/.git; \
-	    elif [[ "d2sqlite3" == ${dir}  || "D-YAML" == ${dir} || "tinyendian" == ${dir} ]]; then \
-	      echo {{gwd}}/${dir} && \
-	      rm -rvf {{gwd}}/${dir} && \
-	      git clone --depth=1 https://github.com/dlang-community/${dir} && \
-	      cd {{gwd}}/${dir} && \
-	      echo "${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../${dir}.meta && \
-	      echo "https://github.com/dlang-community/${dir}"  >> ../${dir}.meta && \
-	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../${dir}.meta && \
-	      cd {{gwd}} && \
-	      rm -rf {{gwd}}/${dir}/.git; \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/tjhann/$${dir}"           >> ../$${dir}.meta && \
+	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${gwd}/$${dir}/.git; \
+	    elif [[ "d2sqlite3" == $${dir}  || "D-YAML" == $${dir} || "tinyendian" == $${dir} ]]; then \
+	      echo $${gwd}/$${dir} && \
+	      rm -rvf $${gwd}/$${dir} && \
+	      git clone --depth=1 https://github.com/dlang-community/$${dir} && \
+	      cd $${gwd}/$${dir} && \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/dlang-community/$${dir}"  >> ../$${dir}.meta && \
+	      echo "Boost Software License 1.0 (BSL-1.0)"       >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${gwd}/$${dir}/.git; \
 	    fi; \
 	  fi; \
 	done; \
-	cd {{hwd}}
+	cd $${hwd}
 
 # get and set project external dependencies
 depends_set: depends_get
 	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
 
-#+END_SRC
+changelog_:
+	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" > CHANGELOG_
 
-*** make archive
+# git changelog for project
+changelog:
+	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" | sed "s/ \+$//" > CHANGELOG_
 
-#+NAME: make_project_zip_archive
-#+BEGIN_SRC makefile
 gitZip:
 	git archive -v --format=tar --prefix=`echo spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)`/ HEAD | gzip > ./tarballGitHEAD/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz && \
 	echo "to unzip: tar -xzf spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz"
@@ -696,18 +507,6 @@ gitArchive:
 	git archive -v --format=tar --prefix=spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)/ HEAD | gzip > ./tarballGitHEAD/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz && \
 	echo "to unzip: tar -xzf spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT).tar.gz"
 
-# git archive project, produce current state .tar.gz
-# gitArchive:
-# 	git archive -v --format=tar --prefix="spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}/" HEAD | gzip > ./tarballGitHEAD/spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}.tar.gz && \
-# 	echo "to unzip: tar -xzf spine-{{PROG_VER_DECLARED}}-tag-{{PROG_VER_GIT}}.tar.gz"
-
-#+END_SRC
-
-*** nixGitHEADtarball
-
-#+NAME: nixGitHEADtarball
-#+HEADER: :noweb yes
-#+BEGIN_SRC makefile
 # remove test tarball dir
 nixGitHEADtarballClean:
 	if [ -d "./tarballGitHEAD" ]; then \
@@ -719,187 +518,139 @@ nixGitHEADtarballTar:
 	if [ ! -d "./tarballGitHEAD" ]; then \
 	  mkdir ./tarballGitHEAD; \
 	fi; \
-	git archive -v --format=tar --prefix="spine-${PROG_VER_DECLARED}/" HEAD | \
-	gzip > ./tarballGitHEAD/spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz && \
-	cp -v ./tarballGitHEAD/spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz ./tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz && \
-	echo "to unzip: tar -xzf spine-${PROG_VER_DECLARED}-tag-${PROG_VER_GIT}.tar.gz"; \
-	echo "to unzip: tar -xzf spine-${PROG_VER_DECLARED}.tar.gz"
+	git archive -v --format=tar --prefix="spine-$${PROG_VER_DECLARED}/" HEAD | \
+	gzip > ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz && \
+	cp -v ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz ./tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz && \
+	echo "to unzip: tar -xzf spine-$${PROG_VER_DECLARED}-tag-$${PROG_VER_GIT}.tar.gz"; \
+	echo "to unzip: tar -xzf spine-$${PROG_VER_DECLARED}.tar.gz"
 
 # check test tarball
 nixGitHEADtarballCheck:
-	nix flake check <<nixGitUrl>>/spine-${PROG_VER_DECLARED}.tar.gz; \
-	nix flake lock <<nixGitUrl>>/spine-${PROG_VER_DECLARED}.tar.gz; \
-	nix flake show <<nixGitUrl>>/spine-${PROG_VER_DECLARED}.tar.gz;
+	nix flake check file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz; \
+	nix flake lock file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz; \
+	nix flake show file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz;
 
 # build test tarball
 nixGitHEADtarballBuild:
-	echo "nix build <<nixGitUrl>>/spine-${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs"
-	nix build <<nixGitUrl>>/spine-${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs
-	#nix build "./tarballGitHEAD/spine-${PROG_VER_DECLARED}.tar.gz#spine" --print-build-logs
+	echo "nix build file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs"; \
+	nix build file://$${hwd}/tarballGitHEAD/spine-$${PROG_VER_DECLARED}.tar.gz#spine --print-build-logs
 
 # clean create check & build test tarball
 nixGitHEADtarball: nixGitHEADtarballClean nixGitHEADtarballTar nixGitHEADtarballCheck nixGitHEADtarballBuild
 
-#+END_SRC
-
-**** Url nixGitHEADtarball
-
-#+NAME: nixGitUrl
-#+BEGIN_SRC makefile
-file://${hwd}/tarballGitHEAD
-#+END_SRC
-
-*** _make_ commands [+2] :make:commands:
-
-- build commands
-  - build
-  - debug
-  - release
-- init, clean, distclean etc.
-  - init
-  - clean
-  - expunge
-  - distclean
-  - distclean_and_init
-- org babel tangle
-  - tangle
-- git snapshot
-  - gitsnapshot
-
-**** version tag, stamp
-
-#+NAME: make_version_tag
-#+HEADER: :noweb yes
-#+BEGIN_SRC makefile
-version_tag:
-	echo "DRV=<<spine_version_set>>; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform $$\{DRV}\" HEAD" && \
-	echo "git tag -f doc-reform_v<<spine_version_set>> -m\"doc-reform spine-<<spine_version_set>>\" HEAD"
-
-#+END_SRC
+get_depends:
+	hwd=$$(echo `pwd`) && \
+	gwd="$${hwd}/src/ext_depends" && \
+	dirs=$$(echo `ls -gx $${gwd}`) && \
+	license_bsl="Boost Software License 1.0 (BSL-1.0)" && \
+	echo $${hwd} && \
+	echo $${gwd} && \
+	echo $${deps} && \
+	dub upgrade; \
+	cd $${gwd} && \
+	for dir in $${deps}; do \
+	  if [ -d $${dir} ]; then \
+	    echo $${dir} && \
+	    if [ "imageformats" == $${dir} ]; then \
+	      echo $${dir} && \
+	      rm -rf $${dir} && \
+	      git clone --depth=1 https://github.com/tjhann/$${dir} && \
+	      cd $${dir} && \
+	      echo $$PWD && \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/tjhann/$${dir}"          >> ../$${dir}.meta && \
+	      echo "$${license_bsl}"                            >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${dir}/.git; \
+	    elif [[ "d2sqlite3" == $${dir}  || "D-YAML" == $${dir} || "tinyendian" == $${dir} ]]; then \
+	      echo $${dir} && \
+	      rm -rf $${dir} && \
+	      git clone --depth=1 https://github.com/dlang-community/$${dir} && \
+	      cd $${dir} && \
+	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
+	      echo "https://github.com/dlang-community/$${dir}" >> ../$${dir}.meta && \
+	      echo "$${license_bsl}"                            >> ../$${dir}.meta && \
+	      cd $${gwd} && \
+	      rm -rf $${dir}/.git; \
+	    fi; \
+	  fi; \
+	done; \
+	cd $${hwd}
 
-**** changelog
+set_depends: get_depends
+	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
 
-#+NAME: make_changelog
-#+BEGIN_SRC makefile
-changelog_:
-	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" > CHANGELOG_
+rm_flakelock:
+	git reset HEAD flake.lock && \
+	touch flake.lock \
+	git rm -f flake.lock
 
-# git changelog for project
-changelog:
-	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" | sed "s/ \+$//" > CHANGELOG_
+flake_update:
+	git add .; \
+	nix flake lock && \
+	git reset HEAD flake.lock; \
+	cp flake.lock flake.lock_
 
-#+END_SRC
+flake_update_move_lock: flake_update
+	touch flake.lock \
+	git rm -f flake.lock
 
-**** build commands [+1] :build:compile:
-***** _dub_ build rebuild :dub:
-****** all compiler builds :all:dmd:gdc:ldc:
-******* all builds
-******** default
+set_latest: set_depends flake_update rm_flakelock
 
-#+NAME: make_dub_upgrade
-#+BEGIN_SRC makefile
 dub_upgrade:
 	$(DUB) upgrade
 
-#+END_SRC
+dc: ldc
 
-#+NAME: make_compile_compiler_default
-#+BEGIN_SRC makefile
-default: ldc
+compile: ldc
 
-#+END_SRC
-
-******** quick :quick:
-********* default :default:
-
-#+NAME: make_compile_compiler_all
-#+BEGIN_SRC makefile
 all: dmd ldc gdc
 
 all_ver: dmd_ver ldc_ver gdc_ver
 
-all_debug: dmd_debug gdc_debug ldc_debug
-
-#+END_SRC
-******** clean & tangle :clean:tangle:
-********* default :default:
-
-#+NAME: make_clean_tangle_compile_all_clean
-#+BEGIN_SRC makefile
-all_clean: clean tangle dmd ldc gdc
+meson_clean_build_dir:
+	rm -r build; mkdir build
 
-all_ver_clean: clean tangle dmd_ver ldc_ver gdc_ver
+meson_redo: meson_clean_build_dir meson_build
 
-all_debug_ver: dmd_debug_ver gdc_debug_ver ldc_debug_ver
+meson_project_build_clean: clean skel tangle dub_upgrade meson_build
 
-all_debug_clean_ver: clean tangle dmd_debug_ver gdc_debug_ver ldc_debug_ver
+meson: meson_clean_build_dir dub_upgrade meson_build
 
-#+END_SRC
+all_clean: clean tangle dmd ldc gdc
 
-****** individual compiler builds :each:
-******* dmd :dmd:
-******** quick builds :quick:
+all_ver_clean: clean tangle dmd_ver ldc_ver gdc_ver
 
-#+NAME: make_dub_compile_dmd_default
-#+BEGIN_SRC makefile
 dmd: dub_upgrade
-	$(DUB) --compiler=dmd --config=dmd --build=release-nobounds
+	$(DUB) --compiler=dmd --build=dmd --build=release-nobounds
 	notify-send -t 0 'D dmd compiled test release executable ready' 'spine-dmd'
 
-dmd_debug:
-	$(DUB) --compiler=dmd --config=dmd --build=debug
-
 # assumes git tags with program version
 dmd_ver: dub_upgrade
-	$(DUB) --compiler=dmd --config=dmd-version
+	$(DUB) --compiler=dmd --build=dmd-version
 	mv bin/spine-dmd-ver bin-archive/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-dmd
 	notify-send -t 0 'D dmd compiled test release executable ready' 'spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-dmd'
 
-#+END_SRC
-
-******** clean & tangle :clean:tangle:
-
-#+NAME: make_dub_compile_dmd_release
-#+BEGIN_SRC makefile
 dmd_clean_ver: clean tangle dmd_ver
 
 dmd_rel: expunge skel tangle
-	$(DUB) --compiler=dmd --config=spine-release
+	$(DUB) --compiler=dmd --build=spine-release
 
 dmd_rel_tangle: tangle
-	$(DUB) --compiler=dmd --config=spine-dmd
+	$(DUB) --compiler=dmd --build=spine-dmd
 
 dmd_rel_expunge_tangle: expunge skel tangle dmd_rel_tangle
 
-dmd_debug_tangle: tangle
-	$(DUB) --compiler=dmd --config=spine-dmd-debug
-
-#+END_SRC
-
-******* gdc :gdc:
-******** quick builds :quick:
-
-#+NAME: make_dub_compile_gdc_default
-#+BEGIN_SRC makefile
 gdc: dub_upgrade
-	$(DUB) --compiler=gdc --config=gdc
+	$(DUB) --compiler=gdc --build=gdc
 	notify-send -t 0 'D gdc compiled test release executable ready' 'spine-gdc'
 
-gdc_debug:
-	$(DUB) --compiler=gdc --config=gdc --build=debug
-
 # assumes git tags with program version
 gdc_ver: dub_upgrade
-	$(DUB) --compiler=gdc --config=gdc-version
+	$(DUB) --compiler=gdc --build=gdc-version
 	mv bin/spine-gdc-ver bin-archive/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-gdc
 	notify-send -t 0 'D gdc compiled test release executable ready' 'spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-gdc'
 
-#+END_SRC
-
-******** clean & tangle :clean:tangle:
-
-#+NAME: make_dub_compile_gdc_release
-#+BEGIN_SRC makefile
 gdc_clean_ver: clean tangle gdc_ver
 
 gdc_rel: expunge skel tangle
@@ -910,23 +661,10 @@ gdc_rel_tangle: tangle
 
 gdc_rel_expunge_tangle: expunge skel tangle gdc_rel_tangle
 
-gdc_debug_tangle: tangle
-	$(DUB) --compiler=gdc --config=spine-gdc-debug
-
-#+END_SRC
-
-******* ldc :ldc:
-******** quick builds :quick:
-
-#+NAME: make_dub_compile_ldc_default
-#+BEGIN_SRC makefile
 ldc: dub_upgrade
-	$(DUB) --compiler=ldc2 --config=ldc --build=release
+	$(DUB) --compiler=ldc2 --build=ldc2 --build=release
 	notify-send -t 0 'D ldc compiled test release executable ready' 'spine-ldc'
 
-ldc_debug:
-	$(DUB) --compiler=ldc2 --config=ldc --build=debug
-
 # assumes git tags with program version
 ldc_ver: dub_upgrade
 	$(DUB) --compiler=ldc2 --config=ldc-version
@@ -935,12 +673,6 @@ ldc_ver: dub_upgrade
 
 ldc_clean_ver: clean tangle ldc_ver
 
-#+END_SRC
-
-******** clean & tangle :clean:tangle:
-
-#+NAME: make_dub_compile_ldc_release
-#+BEGIN_SRC makefile
 ldc_rel: expunge skel tangle
 	$(DUB) --compiler=ldc2 --config=spine-release
 
@@ -949,16 +681,6 @@ ldc_rel_tangle: tangle
 
 ldc_rel_expunge_tangle: expunge skel tangle ldc_rel_tangle
 
-ldc_debug_tangle: tangle
-	$(DUB) --compiler=ldc2 --config=spine-ldc-debug
-
-#+END_SRC
-
-****** generic
-******* init clean distclean etc. :clean:
-
-#+NAME: make_initialization_operations_parts
-#+BEGIN_SRC makefile
 reinit: clean skel tangle
 
 skel:
@@ -1021,21 +743,9 @@ distclean_and_init: expunge
 	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR); \
 	mkdir -p $(PRG_BINDIR);
 
-#+END_SRC
-
-******* version :version:
-
-#+NAME: make_initialization_operations_git_version
-#+BEGIN_SRC makefile
 ver:
 	echo spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)
 
-#+END_SRC
-
-******* tangle build rebuild :clean:tangle:build:
-
-#+NAME: make_initialization_operations_assemble
-#+BEGIN_SRC makefile
 clean_tangle_build: clean tangle build
 
 tangle_build: tangle build
@@ -1052,115 +762,125 @@ makefile_new:
 
 restart: clean tangle
 
-#+END_SRC
+find_pods:
+	$(SiSU_MARKUP_SAMPLES_FIND_PODS)
 
-**** get project dependencies
+testrun_find:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	data/pod/sisu-manual
 
-#+NAME: make_get_project_dependencies_github
-#+BEGIN_SRC makefile
-get_depends:
-	hwd=$$(echo `pwd`) && \
-	gwd="$${hwd}/src/ext_depends" && \
-	dirs=$$(echo `ls -gx $${gwd}`) && \
-	license_bsl="Boost Software License 1.0 (BSL-1.0)" && \
-	echo $${hwd} && \
-	echo $${gwd} && \
-	echo $${deps} && \
-	dub upgrade; \
-	cd $${gwd} && \
-	for dir in $${deps}; do \
-	  if [ -d $${dir} ]; then \
-	    echo $${dir} && \
-	    if [ "imageformats" == $${dir} ]; then \
-	      echo $${dir} && \
-	      rm -rf $${dir} && \
-	      git clone --depth=1 https://github.com/tjhann/$${dir} && \
-	      cd $${dir} && \
-	      echo $$PWD && \
-	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
-	      echo "https://github.com/tjhann/$${dir}"          >> ../$${dir}.meta && \
-	      echo "$${license_bsl}"                            >> ../$${dir}.meta && \
-	      cd $${gwd} && \
-	      rm -rf $${dir}/.git; \
-	    elif [[ "d2sqlite3" == $${dir}  || "D-YAML" == $${dir} || "tinyendian" == $${dir} ]]; then \
-	      echo $${dir} && \
-	      rm -rf $${dir} && \
-	      git clone --depth=1 https://github.com/dlang-community/$${dir} && \
-	      cd $${dir} && \
-	      echo "$${dir} `git rev-parse HEAD | cut -c 1-8`"   > ../$${dir}.meta && \
-	      echo "https://github.com/dlang-community/$${dir}" >> ../$${dir}.meta && \
-	      echo "$${license_bsl}"                            >> ../$${dir}.meta && \
-	      cd $${gwd} && \
-	      rm -rf $${dir}/.git; \
-	    fi; \
-	  fi; \
-	done; \
-	cd $${hwd}
+testrun_find_pod_source:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --source \
+	--output-dir=tmp/program_output_pod
 
-set_depends: get_depends
-	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
+testrun_find_pod_pod:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --pod \
+	--output-dir=tmp/program_output_pod
 
-rm_flakelock:
-	git reset HEAD flake.lock && \
-	touch flake.lock \
-	git rm -f flake.lock
+testrun_find_pod_html:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --html \
+	--output-dir=tmp/program_output_pod
 
-flake_update:
-	git add .; \
-	nix flake lock && \
-	git reset HEAD flake.lock; \
-	cp flake.lock flake.lock_
+testrun_find_pod_epub:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --epub \
+	--output-dir=tmp/program_output_pod
 
-flake_update_move_lock: flake_update
-	touch flake.lock \
-	git rm -f flake.lock
+testrun_find_pod_all:
+	$(SiSU_MARKUP_SAMPLES_PODS_FOUND) \
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod
 
-set_latest: set_depends flake_update rm_flakelock
+testrun_paths:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	data/pod/sisu-manual
 
-#+END_SRC
+testrun_paths_pod_source:
+	spine -v --source \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
 
-gitDir=dub2nix; git clone --depth=1 https://github.com/lionello/${gitDir} | rm -rf ${gitDir}/.git
+testrun_paths_pod_pod:
+	spine -v --pod \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
 
-**** _meson_ build :meson:
+testrun_paths_pod_html:
+	spine -v --html \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
 
-meson using dub
-- works & looks pretty clean
-- but subprojects built externally & not suitable for debian packaging
+testrun_paths_pod_epub:
+	spine -v --epub \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
 
-#+NAME: make_meson_build
-#+BEGIN_SRC makefile
-meson_clean_build_dir:
-	rm -r build; mkdir build
+testrun_paths_pod_all:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_pod \
+	./markup/pod/*
 
-meson_build: meson_clean_build_dir
-	meson --buildtype=debugoptimized build
-	ninja -C build
-	notify-send -t 0 'D meson build ldc compiled test release executable ready' 'spine'
+testrun_find_dir_source:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --source \
+	--output-dir=tmp/program_output_dir
 
-meson_redo: meson_clean_build_dir meson_build
+testrun_find_dir_pod:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --pod \
+	--output-dir=tmp/program_output_dir
 
-meson_project_build_clean: clean skel tangle dub_upgrade meson_build
+testrun_find_dir_html:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --html \
+	--output-dir=tmp/program_output_dir
 
-meson: meson_clean_build_dir dub_upgrade meson_build
+testrun_find_dir_epub:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --epub \
+	--output-dir=tmp/program_output_dir
 
-#+END_SRC
+testrun_find_dir_all:
+	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_dir
 
-**** testrun (program against document markup) :markup:sample:
-***** pods :pod:
-******* find files
+testrun_filelist_dir_source:
+	spine -v --source \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+NAME: make_project_testrun_0_find_pods
-#+BEGIN_SRC makefile
-find_pods:
-	$(SiSU_MARKUP_SAMPLES_FIND_PODS)
+testrun_filelist_dir_pod:
+	spine -v --pod \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+END_SRC
+testrun_filelist_dir_html:
+	spine -v --html \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
 
-****** dmd
-******* find files
+testrun_filelist_dir_epub:
+	spine -v --epub \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
+
+testrun_filelist_dir_all:
+	spine -v --source --html --epub --sqlite-discrete \
+	--sqlite-create --sqlite-update \
+	--output-dir=tmp/program_output_dir \
+	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+NAME: make_project_testrun_1
-#+BEGIN_SRC makefile
 dmd_testrun_find:
 	./bin/spine-dmd -v --source --html --epub --sqlite-discrete \
 --sqlite-create --sqlite-update \
@@ -1193,12 +913,6 @@ dmd_testrun_find_pod_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_pod
 
-#+END_SRC
-
-******* path list
-
-#+NAME: make_project_testrun_2
-#+BEGIN_SRC makefile
 dmd_testrun_paths_pod_source:
 	./bin/spine-dmd -v --source \
 	--output-dir=tmp/program_output_pod \
@@ -1225,13 +939,6 @@ dmd_testrun_paths_pod_all:
 	--output-dir=tmp/program_output_pod \
 	$(SiSU_MARKUP_SAMPLES_POD)
 
-#+END_SRC
-
-****** gdc
-******* find files
-
-#+NAME: make_project_testrun_3
-#+BEGIN_SRC makefile
 gdc_testrun_find:
 	./bin/spine-gdc -v --source --html --epub --sqlite-discrete \
 	--sqlite-create --sqlite-update \
@@ -1264,12 +971,6 @@ gdc_testrun_find_pod_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_pod
 
-#+END_SRC
-
-******* path list
-
-#+NAME: make_project_testrun_4
-#+BEGIN_SRC makefile
 gdc_testrun_paths:
 	./bin/spine-gdc -v --source --html --epub --sqlite-discrete \
 	--sqlite-create --sqlite-update \
@@ -1302,13 +1003,6 @@ gdc_testrun_paths_pod_all:
 	--output-dir=tmp/program_output_pod \
 	$(SiSU_MARKUP_SAMPLES_POD)
 
-#+END_SRC
-
-****** ldc
-******* find files
-
-#+NAME: make_project_testrun_5
-#+BEGIN_SRC makefile
 ldc_testrun_find:
 	./bin/spine-ldc -v --source --html --epub --sqlite-discrete \
 	--sqlite-create --sqlite-update \
@@ -1341,12 +1035,6 @@ ldc_testrun_find_pod_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_pod
 
-#+END_SRC
-
-******* path list
-
-#+NAME: make_project_testrun_6
-#+BEGIN_SRC makefile
 ldc_testrun_paths:
 	./bin/spine-ldc -v --source --html --epub --sqlite-discrete \
 	--sqlite-create --sqlite-update \
@@ -1379,14 +1067,6 @@ ldc_testrun_paths_pod_all:
 	--output-dir=tmp/program_output_pod \
 	$(SiSU_MARKUP_SAMPLES_POD)
 
-#+END_SRC
-
-***** dir :dir:
-****** dmd
-******* find files
-
-#+NAME: make_project_testrun_7
-#+BEGIN_SRC makefile
 dmd_testrun_find_dir_source:
 	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
 	./bin/spine-dmd -v --source \
@@ -1413,12 +1093,6 @@ dmd_testrun_find_dir_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_dir
 
-#+END_SRC
-
-******* file list
-
-#+NAME: make_project_testrun_8
-#+BEGIN_SRC makefile
 dmd_testrun_filelist_dir_source:
 	./bin/spine-dmd -v --source \
 	--output-dir=tmp/program_output_dir \
@@ -1445,13 +1119,6 @@ dmd_testrun_filelist_dir_all:
 	--output-dir=tmp/program_output_dir \
 	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+END_SRC
-
-****** gdc
-******* find files
-
-#+NAME: make_project_testrun_9
-#+BEGIN_SRC makefile
 gdc_testrun_find_dir_source:
 	./bin/spine-gdc -v --source \
 	--output-dir=tmp/program_output_dir \
@@ -1478,12 +1145,6 @@ gdc_testrun_find_dir_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_dir
 
-#+END_SRC
-
-******* file list
-
-#+NAME: make_project_testrun_10
-#+BEGIN_SRC makefile
 gdc_testrun_filelist_dir_source:
 	./bin/spine-gdc -v --source \
 	--output-dir=tmp/program_output_dir \
@@ -1510,13 +1171,6 @@ gdc_testrun_filelist_dir_all:
 	--output-dir=tmp/program_output_dir \
 	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+END_SRC
-
-****** ldc
-******* find files
-
-#+NAME: make_project_testrun_11
-#+BEGIN_SRC makefile
 ldc_testrun_find_dir_source:
 	$(SiSU_MARKUP_SAMPLES_DIR_FILES_FOUND) \
 	./bin/spine-ldc -v --source \
@@ -1543,12 +1197,6 @@ ldc_testrun_find_dir_all:
 	--sqlite-create --sqlite-update \
 	--output-dir=tmp/program_output_dir
 
-#+END_SRC
-
-******* file list
-
-#+NAME: make_project_testrun_12
-#+BEGIN_SRC makefile
 ldc_testrun_filelist_dir_source:
 	./bin/spine-ldc -v --source \
 	--output-dir=tmp/program_output_dir \
@@ -1575,13 +1223,6 @@ ldc_testrun_filelist_dir_all:
 	--output-dir=tmp/program_output_dir \
 	$(SiSU_MARKUP_SAMPLES_DIR)
 
-#+END_SRC
-
-**** org babel tangle batch process command :tangle:
-***** tangle: org babel tangle *.org
-
-#+NAME: make_tangle_0
-#+BEGIN_SRC makefile
 tangle: skel
 	for f in $(ORGFILELIST); do \
 		ORGFILES="$$ORGFILES \"$$f\""; \
@@ -1601,12 +1242,6 @@ tangle: skel
 			(org-babel-tangle) \
 			(kill-buffer)) '($$ORGFILES)))" 2>&1
 
-#+END_SRC
-
-***** tangle maker: org babel tangle makefile new
-
-#+NAME: make_tangle_1
-#+BEGIN_SRC makefile
 tangle_maker:
 	for f in $(ORGFILELIST); do \
 		ORGFILES="\"org/dr_build_scaffold.org\""; \
@@ -1626,15 +1261,6 @@ tangle_maker:
 			(org-babel-tangle) \
 			(kill-buffer)) '($$ORGFILES)))" 2>&1
 
-#+END_SRC
-
-***** tangle nix project
-
-#+NAME: make_nix_project
-#+BEGIN_SRC makefile
-lorri_shell:
-	lorri shell
-
 # nix-shell
 nix-shell:
 	nix-shell -I .envrc
@@ -1644,7 +1270,7 @@ nix-shell-pure:
 
 # nix-shell (with local tools, presumably latest dlang compiler & build tools (ldc & dub))
 nix-shell-updated:
-	nix-shell -I nixpkgs=/nix/nixpkgs --pure
+	nix-shell -I nixpkgs=/srv/nix/nixpkgs --pure
 
 # shell.nix (with shebang)
 shell:
@@ -1686,7 +1312,7 @@ _flake-show-derivation:
 	nix show-derivation |jq;
 
 nix-develop:
-	nix develop -f default.nix -I nixpkgs=/nix/nixpkgs
+	nix develop -f default.nix -I nixpkgs=/srv/nix/nixpkgs
 
 # nix flake show
 flake-show: _flake-show-package _flake-show-name _flake-show-derivation
@@ -1699,13 +1325,9 @@ flake-build: _flake-show-name
 flake-reset-build: _flake-lock-reset _flake-show-name
 	nix build --print-build-logs
 
-# nix-build flake spine debug
-flake-build-debug:
-	nix build --debug
-
 # nix-build spine (with local tools, presumably latest dlang compiler & build tools (ldc & dub))
 flake-build-use-tools-new:
-	nix build --print-build-logs -I nixpkgs=/nix/nixpkgs
+	nix build --print-build-logs -I nixpkgs=/srv/nix/nixpkgs
 
 # tangle-build-flake
 flake-tangle-build: org-tangle flake-build
@@ -1722,64 +1344,15 @@ flake-build-search:
 	nix build --print-build-logs \
 	cd -
 
-#+END_SRC
-
-**** git snapshot
-
-#+NAME: make_git_snapshot
-#+BEGIN_SRC makefile
 gitsnapshot: distclean tangle
 	git commit -a
 
-#+END_SRC
-
-*** phony :phony:
+version_tag:
+	echo "DRV=<<spine_version_set>>; git tag -f doc-reform_v$$\{DRV} -m\"doc-reform spine-$$\{DRV}\" HEAD"; \
+	echo "git tag -f doc-reform_v<<spine_version_set>> -m\"doc-reform spine-<<spine_version_set>>\" HEAD"
 
-#+NAME: make_phony
-#+BEGIN_SRC makefile
-.PHONY : all build rebuild debug release \
+.PHONY : all build rebuild release \
 	distclean init \
 	tangle gitsnapshot
-
-#+END_SRC
-
-** .env/local
-
-#+HEADER: :NO-tangle ../.env/local
-#+BEGIN_SRC sh
-export NIX_PATH=/nix/var/nix/profiles/per-user/root/channels/nixos
-#export NIX_PATH=nixpkgs=/nix/nixpkgs
-#export NIX_PATH=/nix/nixpkgs
-# reload when these files change
-# watch_file flake.nix
-# watch_file flake.lock
-## load the flake devShell
-# eval "$(nix print-dev-env)"
-# echo $NIX_BUILD_TOP
-export SpineVER=$(git describe --long --tags | sed 's/^[ a-z_-]\+\([0-9.]\+\)/\1/;s/\([^-]*-g\)/r\1/;s/-/./g')
-export SpinePROJ=~/grotto/repo/git.repo/projects/project-spine/doc-reform
-export SpineSRC=~/grotto/repo/git.repo/projects/project-spine/doc-reform/src
-export SpineBIN=~/grotto/repo/git.repo/projects/project-spine/doc-reform/result/bin
-export SpineDOC=~/grotto/repo/git.repo/projects/project-spine/doc-reform-markup/spine-markup-samples
-export SpinePOD=$SpineDOC/markup/pod
-export SpineOUTversioned=/srv/www/spine/$SpineVER
-export SpineOUT=/srv/www/spine
-export SpineDBpath=/var/www/sqlite
-#use nix
-if [ -e .env/echo-nixNote ]; then
-   source .env/echo-nixNote
-fi
 #+END_SRC
 
-* www dr spine latex
-
-- /srv/www/spine/latex
-
-** notes
-
-- vim {the_wealth_of_networks.yochai_benkler,two_bits.christopher_kelty,viral_spiral.david_bollier}.en.a4.portrait.tex
-- emacs {the_wealth_of_networks.yochai_benkler,two_bits.christopher_kelty,viral_spiral.david_bollier}.en.a4.portrait.tex
-
-- evince the_wealth_of_networks.yochai_benkler.en.a4.portrait.pdf
-- evince two_bits.christopher_kelty.en.a4.portrait.pdf
-- evince viral_spiral.david_bollier.en.a4.portrait.pdf
diff --git a/org/config_nix.org b/org/config_nix.org
index 1953533..9c68f88 100644
--- a/org/config_nix.org
+++ b/org/config_nix.org
@@ -6,7 +6,7 @@
 #+EMAIL:       [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
 #+COPYRIGHT:   Copyright (C) 2015 - 2023 Ralph Amissah
 #+LANGUAGE:    en
-#+STARTUP:     content hideblocks hidestars noindent entitiespretty
+#+STARTUP:     show4levels hideblocks hidestars noindent entitiespretty
 #+PROPERTY:    header-args  :exports code
 #+PROPERTY:    header-args+ :noweb yes
 #+PROPERTY:    header-args+ :results no
@@ -35,45 +35,23 @@
 
 #+HEADER: :tangle ../.envrc
 #+BEGIN_SRC sh
-use flake .
-#use flake .#default
 NIX_ENFORCE_PURITY=1
+# - https://github.com/nix-community/nix-direnv
 NixDirEnvVersion="2.2.1"
+NixDirEnvSHA="sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+#NixDirEnvSHAget="sha256-0000000000000000000000000000000000000000000="
 if ! has nix_direnv_version || ! nix_direnv_version ${NixDirEnvVersion}; then
-# - https://github.com/nix-community/nix-direnv
-# source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "sha256-0000000000000000000000000000000000000000000="
-  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/${NixDirEnvVersion}/direnvrc" "${NixDirEnvSHA}"
 fi
 watch_file flake.lock
 watch_file flake.nix
-if [ -f .envrc-local ]; then
-  source_env_if_exists .envrc-local || source .envrc-local
-fi
+watch_file makefile
+#if [ -f .envrc-local ]; then
+#  source_env_if_exists .envrc-local || source .envrc-local
+#fi
 PATH_add result/bin
-#nix flake update && nix flake check --show-trace && nix flake show
-# echo "
-#
-# - nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-#
-# - nix build .#default --print-build-logs
-# - nix build .#spine-dmd --print-build-logs
-# - nix build .#spine-ldc --print-build-logs
-# - nix build .#spine-gdc --print-build-logs
-#
-# - nix develop
-#   - nix develop .#devShell --print-build-logs
-#   - nix develop .#devShell-html --print-build-logs
-#   - nix develop .#devShell-epub --print-build-logs
-#   - nix develop .#devShell-latex-pdf --print-build-logs
-#   - nix develop .#devShell-sqlite --print-build-logs
-#   - nix develop .#devShell-i18n --print-build-logs
-#
-# nix run .#default --print-build-logs
-#
-# nix develop --build .#default --print-build-logs
-#
-# nix-shell '<nixpkgs>' -A nix --pure
-# "
+use flake .
+#use flake .#default
 #+END_SRC
 
 **** .envrc-local CHECK MODIFY
@@ -103,8 +81,7 @@ export SpineSQLdb='spine.search.db'
 #+END_SRC
 
 *** flake :flake:
-**** flake
-***** flake.nix
+**** flake.nix
 
 #+HEADER: :tangle ../flake.nix
 #+HEADER: :noweb yes
@@ -150,7 +127,7 @@ export SpineSQLdb='spine.search.db'
             inherit shell;
             inherit devEnv;
             buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub dmd ldc gdc gnumake ]; # [ dub dmd ]; [ dub ldc ]; [ dub gdc ];
+            nativeBuildInputs  = [ dub ldc gnumake ]; # [ dub dmd ]; [ dub ldc ]; [ dub gdc ];
             buildPhase = ''
               runHook preBuild
               for DC_ in dmd ldmd2 ldc2 gdc gdmd; do
@@ -205,25 +182,25 @@ export SpineSQLdb='spine.search.db'
             inherit installPhase;
             inherit postInstall;
           };
-          spine-gdc = stdenv.mkDerivation {
-            inherit pname;
-            inherit version;
-            meta.mainProgram   = "spine-gdc";
-            executable         = true;
-            src                = self;
-            inherit shell;
-            inherit devEnv;
-            buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub gdc gnumake ];
-            buildPhase = ''
-              runHook preBuild
-              dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
-              runHook postBuild
-            '';
-            inherit checkPhase;
-            inherit installPhase;
-            inherit postInstall;
-          };
+          #spine-gdc = stdenv.mkDerivation {
+          #  inherit pname;
+          #  inherit version;
+          #  meta.mainProgram   = "spine-gdc";
+          #  executable         = true;
+          #  src                = self;
+          #  inherit shell;
+          #  inherit devEnv;
+          #  buildInputs        = [ sqlite ];
+          #  nativeBuildInputs  = [ dub gdc gnumake ];
+          #  buildPhase = ''
+          #    runHook preBuild
+          #    dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
+          #    runHook postBuild
+          #  '';
+          #  inherit checkPhase;
+          #  inherit installPhase;
+          #  inherit postInstall;
+          #};
           #vendorSha256 = "sha256-0Q00000000000000000000000000000000000000000=";
       });
       apps = forAllSystems (system: {
@@ -266,24 +243,24 @@ export SpineSQLdb='spine.search.db'
             #export spineSqlite="spine --very-verbose --sqlite-update --sqlite-db-path=\"$SpineDBpath\" --sqlite-db-filename=\"spine.search.db\" --output=\"\$SpineOUT\" $SpinePOD/*"
           '';
         in with pkgs; {
-          devShell = mkShell rec {
-            name = "spine dev shell default";
+          devShell = mkShell {
+            name               = "spine base dev shell";
             inherit shell;
             inherit devEnv;
             #buildInputs        = [ sqlite ];
             #nativeBuildInputs  = [ dub dmd ldc gdc gnumake ];
             packages     = [
               sqlite
-              dub dmd ldc gdc gnumake
+              dub dmd ldc gnumake
             ];
             inherit shellHook;
           };
-          devShell-epub = mkShell rec {
-            name = "spine dev shell for epub output";
+          devShell-epub = mkShell {
+            name               = "spine dev shell for epub output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               libxml2
               html-tidy
@@ -302,22 +279,22 @@ export SpineSQLdb='spine.search.db'
             ];
             inherit shellHook;
           };
-          devShell-html = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-html = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
             ];
             inherit shellHook;
           };
-          devShell-latex-pdf = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-latex-pdf = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               source-sans-pro
               source-serif-pro
@@ -326,26 +303,28 @@ export SpineSQLdb='spine.search.db'
             ];
             inherit shellHook;
           };
-          devShell-sqlite = mkShell rec {
-            name = "spine dev shell for latex & pdf output";
+          devShell-sqlite = mkShell {
+            name               = "spine dev shell for latex & pdf output";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
             ];
             inherit shellHook;
           };
           devShell-i18n = mkShell {
+            name               = "spine dev shell internationalization, po4a";
             inherit shell;
             inherit devEnv;
-            packages     = [
-              dub dmd ldc gdc gnumake
+            packages = [
+              dub dmd ldc gnumake
               sqlite
               perl534Packages.Po4a
             ];
             inherit shellHook;
           };
+          default = import ./shell.nix { inherit pkgs; };
       });
   };
 }
@@ -566,74 +545,6 @@ src = fetchTarball {
 };
 #+END_SRC
 
-#+HEADER: :noweb yes
-#+BEGIN_SRC nix
-{
-  description = "a sisu like parser & document generator";
-  inputs = {
-    flake-utils.url = "github:numtide/flake-utils";
-    nixpkgs.url = "<<nixpkgs_url>>";
-  };
-  outputs = { self, nixpkgs, flake-utils }:
-  let
-    pkgs = nixpkgs.legacyPackages.x86_64-linux;
-  in {
-    packages.x86_64-linux.spine = pkgs.stdenv.mkDerivation {
-      name = "spine";
-      inherit self;
-      src = self;
-      shell = ./shell.nix;
-      installPhase = ''
-         install -m755 spine $out/bin/spine
-      '';
-    };
-    defaultPackage.x86_64-linux = self.packages.x86_64-linux.spine;
-  };
-}
-#+END_SRC
-
-#+HEADER: :noweb yes
-#+BEGIN_SRC nix
-{
-  description = "a sisu like document parser";
-  inputs = {
-    flake-utils.url = "github:numtide/flake-utils";
-    nixpkgs.url = "<<nixpkgs_url>>";
-    d2sqlite3 = {
-      url    = "github:dlang-community/d2sqlite3";
-      flake  = false;
-    };
-    tinyendian = {
-      url    = "github:kiith-sa/tinyendian";
-      flake  = false;
-    };
-    dyaml = {
-      url    = "github:dlang-community/D-YAML";
-      flake  = false;
-    };
-    imageformats = {
-      url    = "github:lgvz/imageformats";
-      flake  = false;
-    };
-  };
-  outputs = { self, d2sqlite3, tinyendian, dyaml, imageformats, nixpkgs, flake-utils }:
-  let
-    pkgs = nixpkgs.legacyPackages.x86_64-linux;
-  in {
-    packages.x86_64-linux.spine = pkgs.stdenv.mkDerivation {
-      name = "spine";
-      inherit self;
-      src = self;
-      shell = ./shell.nix;
-      installPhase = ''
-         install -m755 spine $out/bin/spine
-      '';
-    };
-    defaultPackage.x86_64-linux = self.packages.x86_64-linux.spine;
-  };
-}
-#+END_SRC
-
 *** shell.nix :shell:
 **** tangle
 
@@ -646,34 +557,39 @@ src = fetchTarball {
 with pkgs;
 mkShell {
   buildInputs = [
+    # ❯❯❯ nix_related
     #nix
     direnv
+    #cachix
     nixVersions.unstable #nixFlakes
     nix-prefetch-git
     validatePkgConfig
-    nix-tree jq nix-output-monitor
+    nix-output-monitor
+    nix-tree
+    jq
     git
     gnumake
     ps
-    ### d_build_related
+    # ❯❯❯ d_build_related
+    # ❯❯ package manager
     dub
-    ## compiler
+    # ❯❯ compiler
     ldc
-    rund
-    ## linker
+    #rund
+    # ❯❯ linker
     #lld
     #mold
-    ## builder
+    # ❯❯ builder
     #ninja
     #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    ### pdf_latex_related
+    # ❯❯❯ pdf_latex_related
     # source-sans-pro
     # source-serif-pro
     # source-code-pro
     # texlive.combined.scheme-full
-    ### xml_and_epub_related
+    # ❯❯❯ xml_and_epub_related
     # libxml2
     # html-tidy
     # xmlstarlet
@@ -683,68 +599,33 @@ mkShell {
     # sigil
     # calibre #(suite includes: ebook-viewer)
     # foliate
-    ### i18n translation related
+    # ❯❯❯ i18n translation related
     # perl534Packages.Po4a
   ];
   shellHook = ''
-    #if [[ -f ".envrc" ]]; then
-    #  source .envrc
-    #fi
     nix flake update
-    echo ""
-    echo "nix flake metadata:"
-    nix flake metadata
-    echo ""
-    echo "nix flake check:"
     nix flake check
-    echo ""
-    echo "nix flake show:"
     nix flake show
-    echo "
-      nix flake update
-      nix flake metadata
-      nix flake check
-      nix flake show
-
-      nix build or nix develop? (suggestions):
-
-      - nix build
-        nix build .#default --print-build-logs
-        nix build --print-build-logs
-        nix build .#default --print-build-logs |& nom
-
-      - nix run
-        nix run .#default --print-build-logs
-        nix run default.nix --print-build-logs
-
-      - nix shell
-        nix shell --print-build-logs --command spine -v
-
-      - nix develop
-        nix develop --build .#default --print-build-logs
-        nix develop --build -f derivation.nix -I .envrc --print-build-logs
-        nix develop ; eval \$buildPhase
+    echo '
+      shell.nix echo ❯❯
 
-        nix-build |& nom
+      ❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell" -c zsh
 
-      spine -v
+      ❯❯ nix develop
+      ❯❯ nix develop -c zsh
 
-      nix-instantiate | nix show-derivation | jq
-      nix-build . --no-out-link | xargs -o nix-tree
-      nix-tree --derivation .#default
-
-      nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-      nix build .#default --print-build-logs
-
-      - nix build .#spine-dmd --print-build-logs
-      - nix build .#spine-ldc --print-build-logs
-      - nix build .#spine-gdc --print-build-logs
-    "
-    #echo "ldc `${pkgs.ldc}/bin/ldc2 -v`"
+      ❯❯ nix build
+      ❯❯ nix build ".#default" --print-build-logs
+      ❯❯ nix build ".#spine-dmd" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-ldc" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-gdc" --print-build-logs |& nom
+    '
   '';
 }
 #+END_SRC
 
+echo "ldc `${pkgs.ldc}/bin/ldc2 -v`"
+
 **** Notes
 
 #+BEGIN_SRC text
@@ -867,100 +748,6 @@ mkShell {
   ./result/bin/spine
 #+END_SRC
 
-**** shell parts (packages)
-***** packages nix related
-
-#+NAME: shell_packages_nix_related
-#+BEGIN_SRC nix
-### nix_related
-direnv
-nixVersions.unstable #nixFlakes
-nix-prefetch-git
-validatePkgConfig
-jq
-git
-ps
-#+END_SRC
-
-***** packages d build related
-
-#+NAME: shell_packages_d_build_related
-#+BEGIN_SRC nix
-### d_build_related
-## package manager
-dub
-## compiler
-ldc
-rund
-## linker
-#lld
-#mold
-## builder
-#ninja
-#meson
-#+END_SRC
-
-***** packages tools
-
-#+NAME: shell_packages_tool_download
-#+BEGIN_SRC nix
-### tools
-#curl
-#wget
-aria
-#+END_SRC
-
-***** packages candy
-
-#+NAME: shell_packages_candy
-#+BEGIN_SRC nix
-### candy
-starship
-#+END_SRC
-
-***** packages search sqlite related
-
-#+NAME: shell_packages_search_related_sqlite
-#+BEGIN_SRC nix
-### sqlite search related
-sqlite
-#+END_SRC
-
-***** packages pdf latex related
-
-#+NAME: shell_packages_pdf_latex_related
-#+BEGIN_SRC nix
-### pdf_latex_related
-source-sans-pro
-source-serif-pro
-source-code-pro
-texlive.combined.scheme-full
-#+END_SRC
-
-***** packages xml epub related
-
-#+NAME: shell_packages_xml_and_epub_related
-#+BEGIN_SRC nix
-### xml_and_epub_related
-libxml2
-html-tidy
-xmlstarlet
-epubcheck
-ebook_tools
-epr
-sigil
-calibre #(suite includes: ebook-viewer)
-foliate
-#+END_SRC
-
-***** packages i18n_translation related
-
-#+NAME: shell_packages_i18n_translation
-#+BEGIN_SRC nix
-### i18n translation related
-perl534Packages.Po4a
-#+END_SRC
-
 *** default.nix :default:
 
 - default.nix -I nixpkgs=<provide local nix path>
@@ -1000,60 +787,38 @@ nix profile install .
 
 #+HEADER: :tangle ../devenv.nix
 #+HEADER: :tangle-mode (identity #o644)
-#+HEADER: :noweb yes
 #+BEGIN_SRC nix
-# profile.nix
-{ pkgs ? import <nixpkgs> { }, name ? "user-env"  }: with pkgs;
+{ pkgs ? import <nixpkgs> { }, name ? "user-env" }:
+with pkgs;
 buildEnv {
   inherit name;
-  extraOutputsToInstall = [ "out" "man" "lib"  ]; # to get all needed symlinks
+  extraOutputsToInstall = [ "out" "man" "lib" ]; # to get all needed symlinks
   paths = [
+    # ❯❯❯ nix_related
     #nix # if not on NixOS, this is needed
     direnv
+    #cachix
     nixVersions.unstable #nixFlakes
     nix-prefetch-git
     validatePkgConfig
-    nix-tree jq nix-output-monitor
+    nix-output-monitor
+    nix-tree
+    jq
     git
+    gnumake
     ps
-    ### d_build_related
+    # ❯❯❯ d_build_related
+    # ❯❯ package manager
     dub
-    ## compiler
+    # ❯❯ compiler
     dmd
     ldc
-    #gdc
-    #rund
-    ## linker
-    #lld
-    #mold
-    ## builder
-    #ninja
-    #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    # ### pdf_latex_related
-    # source-sans-pro
-    # source-serif-pro
-    # source-code-pro
-    # texlive.combined.scheme-full
-    # ### xml_and_epub_related
-    # libxml2
-    # html-tidy
-    # xmlstarlet
-    # epubcheck
-    # ebook_tools
-    # epr
-    # sigil
-    # calibre #(suite includes: ebook-viewer)
-    # foliate
-    # ### i18n translation related
-    # perl534Packages.Po4a
-    ### candy
-    #starship
     # this will create a script that will rebuild and upgrade your setup; using shell script syntax
     (writeScriptBin "nix-rebuild" ''
       #!${stdenv.shell}
-      cd <path-to-flake> || exit 1
+      #cd <path-to-flake> || exit 1
       nix flake update
       nix profile upgrade '.*'
     '')
@@ -1293,6 +1058,8 @@ ldc
 sqlite
 nix-prefetch-git
 validatePkgConfig
+nix-output-monitor
+nix-tree
 jq
 git
 #+END_SRC
@@ -1434,6 +1201,8 @@ pkgs.mkShell {
     nixVersions.unstable #nixFlakes
     nix-prefetch-git
     validatePkgConfig
+    nix-output-monitor
+    nix-tree
     jq
     git
     fontconfig
diff --git a/shell.nix b/shell.nix
index c7eb24c..98902e2 100755
--- a/shell.nix
+++ b/shell.nix
@@ -4,34 +4,39 @@
 with pkgs;
 mkShell {
   buildInputs = [
+    # ❯❯❯ nix_related
     #nix
     direnv
+    #cachix
     nixVersions.unstable #nixFlakes
     nix-prefetch-git
     validatePkgConfig
-    nix-tree jq nix-output-monitor
+    nix-output-monitor
+    nix-tree
+    jq
     git
     gnumake
     ps
-    ### d_build_related
+    # ❯❯❯ d_build_related
+    # ❯❯ package manager
     dub
-    ## compiler
+    # ❯❯ compiler
     ldc
-    rund
-    ## linker
+    #rund
+    # ❯❯ linker
     #lld
     #mold
-    ## builder
+    # ❯❯ builder
     #ninja
     #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    ### pdf_latex_related
+    # ❯❯❯ pdf_latex_related
     # source-sans-pro
     # source-serif-pro
     # source-code-pro
     # texlive.combined.scheme-full
-    ### xml_and_epub_related
+    # ❯❯❯ xml_and_epub_related
     # libxml2
     # html-tidy
     # xmlstarlet
@@ -41,63 +46,26 @@ mkShell {
     # sigil
     # calibre #(suite includes: ebook-viewer)
     # foliate
-    ### i18n translation related
+    # ❯❯❯ i18n translation related
     # perl534Packages.Po4a
   ];
   shellHook = ''
-    #if [[ -f ".envrc" ]]; then
-    #  source .envrc
-    #fi
     nix flake update
-    echo ""
-    echo "nix flake metadata:"
-    nix flake metadata
-    echo ""
-    echo "nix flake check:"
     nix flake check
-    echo ""
-    echo "nix flake show:"
     nix flake show
-    echo "
-      nix flake update
-      nix flake metadata
-      nix flake check
-      nix flake show
+    echo '
+      shell.nix echo ❯❯
 
-      nix build or nix develop? (suggestions):
+      ❯❯ nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell" -c zsh
 
-      - nix build
-        nix build .#default --print-build-logs
-        nix build --print-build-logs
-        nix build .#default --print-build-logs |& nom
+      ❯❯ nix develop
+      ❯❯ nix develop -c zsh
 
-      - nix run
-        nix run .#default --print-build-logs
-        nix run default.nix --print-build-logs
-
-      - nix shell
-        nix shell --print-build-logs --command spine -v
-
-      - nix develop
-        nix develop --build .#default --print-build-logs
-        nix develop --build -f derivation.nix -I .envrc --print-build-logs
-        nix develop ; eval \$buildPhase
-
-        nix-build |& nom
-
-      spine -v
-
-      nix-instantiate | nix show-derivation | jq
-      nix-build . --no-out-link | xargs -o nix-tree
-      nix-tree --derivation .#default
-
-      nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-      nix build .#default --print-build-logs
-
-      - nix build .#spine-dmd --print-build-logs
-      - nix build .#spine-ldc --print-build-logs
-      - nix build .#spine-gdc --print-build-logs
-    "
-    #echo "ldc `${pkgs.ldc}/bin/ldc2 -v`"
+      ❯❯ nix build
+      ❯❯ nix build ".#default" --print-build-logs
+      ❯❯ nix build ".#spine-dmd" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-ldc" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-gdc" --print-build-logs |& nom
+    '
   '';
 }
diff --git a/test.nix b/test.nix
deleted file mode 100644
index bd1e469..0000000
--- a/test.nix
+++ /dev/null
@@ -1,10 +0,0 @@
-# This file was generated by https://github.com/lionello/dub2nix v0.3.0
-
-{ pkgs ? import <nixpkgs> {} }:
-with import ./mkDub.nix { inherit pkgs; };
-
-mkDubDerivation {
-    src = ./.;
-    # version = "0.0.1";
-    # buildInputs = [ add any runtime deps here ];
-}