nix flake & build, temp. remove gdc

9 files changed, 214 insertions, 994 deletions

diff --git a/.envrc b/.envrc
index 8286fa6..84c025e 100644
--- a/.envrc
+++ b/.envrc
@@ -1,34 +1,15 @@
 use flake .
 #use flake .#default
 NIX_ENFORCE_PURITY=1
+# - https://github.com/nix-community/nix-direnv
 NixDirEnvVersion="2.2.1"
 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="
 fi
 watch_file flake.lock
 watch_file flake.nix
-#nix flake update && nix flake check --show-trace && nix flake show
+watch_file makefile
 if [ -f .envrc-local ]; then
   source_env_if_exists .envrc-local || source .envrc-local
 fi
-# echo "
-#
-# - nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-#
-# - nix build .#default --print-build-logs
-# - nix build .#spine-search-ldc --print-build-logs
-# - nix build .#spine-search-dmd --print-build-logs
-# - nix build .#spine-search-gdc --print-build-logs
-#
-# nix-shell '<nixpkgs>' -A nix --pure
-#
-# nix run .#default --print-build-logs
-#
-# nix develop --build .#default --print-build-logs
-#
-# nix shell .#default --print-build-logs --command spine -v
-# nix shell .#default --print-build-logs --command spine --very-verbose --epub --html --html-link-search --html-link-curate --curate --output=\"\$SpineOUT\" ./markup/pod
-# nix shell .#default --print-build-logs --command spine --very-verbose --html --html-link-search --html-link-curate --curate --sqlite-update --sqlite-db-filename=\"spine.search.db\" --cgi-sqlite-search-filename=\"spine_search\" --sqlite-db-path=\"\$SpineDBpath\" --output=\"\$SpineOUT\" ./markup/pod
-# "
diff --git a/derivation.nix b/derivation.nix
index 42605bc..a1e712a 100644
--- a/derivation.nix
+++ b/derivation.nix
@@ -109,7 +109,7 @@ mkDubDerivation rec {
     homepage    = "https://sisudoc.org";
     description = "cgi sqlite search form for document object search";
     longDescription = ''
-      a sisu like parser and document generator
+      a sisu like parser & document generator
     '';
     homepage    = "https://sisudoc.org";
     license     = licenses.agpl3Plus;
diff --git a/devenv.nix b/devenv.nix
index 98a02b5..02cca28 100755..100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -1,43 +1,42 @@
-{ 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
   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
     # 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 '.*'
     '')
     # puts in your root the nixpkgs version
-      (writeTextFile {
+    (writeTextFile {
       name = "nixpkgs-version";
       destination = "/nixpkgs-version";
       text = lib.version;
-       })
+    })
   ];
 }
diff --git a/flake.lock b/flake.lock
index 49ab5de..33c7ddb 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,12 +1,15 @@
 {
   "nodes": {
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
         "type": "github"
       },
       "original": {
@@ -17,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1674807565,
-        "narHash": "sha256-zOLE1YXf2RhYhtNv4n8C0xPaSjduchLlCxZaAeoAvxU=",
+        "lastModified": 1681753173,
+        "narHash": "sha256-MrGmzZWLUqh2VstoikKLFFIELXm/lsf/G9U9zR96VD4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f80ac848e3d6f0c12c52758c0f25c10c97ca3b62",
+        "rev": "0a4206a51b386e5cda731e8ac78d76ad924c7125",
         "type": "github"
       },
       "original": {
@@ -36,6 +39,21 @@
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 6c6c331..b362da7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -37,7 +37,7 @@
             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
@@ -92,25 +92,25 @@
             inherit installPhase;
             inherit postInstall;
           };
-          spine-search-gdc = stdenv.mkDerivation {
-            inherit pname;
-            inherit version;
-            meta.mainProgram   = "spine_search-gdc";
-            executable         = true;
-            src                = self;
-            inherit shell;
-            inherit devEnv;
-            buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub gdc gnumake ];
-            buildPhase = ''
-              runHook preBuild
-              dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
-              runHook postBuild
-            '';
-            inherit checkPhase;
-            inherit installPhase;
-            inherit postInstall;
-          };
+          #spine-search-gdc = stdenv.mkDerivation {
+          #  inherit pname;
+          #  inherit version;
+          #  meta.mainProgram   = "spine_search-gdc";
+          #  executable         = true;
+          #  src                = self;
+          #  inherit shell;
+          #  inherit devEnv;
+          #  buildInputs        = [ sqlite ];
+          #  nativeBuildInputs  = [ dub gdc gnumake ];
+          #  buildPhase = ''
+          #    runHook preBuild
+          #    dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
+          #    runHook postBuild
+          #  '';
+          #  inherit checkPhase;
+          #  inherit installPhase;
+          #  inherit postInstall;
+          #};
           #vendorSha256 = "sha256-0Q00000000000000000000000000000000000000000=";
       });
       devShells = forAllSystems (system:
@@ -141,28 +141,29 @@
             #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-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     = [
+            packages = [
+              dub dmd ldc gnumake
               sqlite
-              dub dmd ldc gdc gnumake
             ];
             inherit shellHook;
           };
+          default = import ./shell.nix { inherit pkgs; };
       });
   };
 }
diff --git a/makefile b/makefile
index 17ab590..27fdd31 100644
--- a/makefile
+++ b/makefile
@@ -5,25 +5,39 @@ SpineSearchAction := 'https://sisudoc.org/spine_search'
 SpineCGIform      := 'spine_search'
 SpineSQLdb        := 'spine.search.db'
 
+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-search-dmd --print-build-logs\n- nix build .#spine-search-ldc --print-build-logs\n- nix build .#spine-search-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-search-dmd" --print-build-logs\n❯❯ nix build ".#spine-search-ldc" --print-build-logs\n❯❯ nix build ".#spine-search-gdc" --print-build-logs\n\n'; \
+	nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"
 
 # nix build
 build:
 	nix-build
 
 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-search-dmd" --print-build-logs
 
 nix-build-ldc:
-	nix build .#spine-ldc --print-build-logs
+	nix build ".#spine-search-ldc" --print-build-logs
 
 nix-build-gdc:
-	nix build .#spine-gdc --print-build-logs
+	nix build ".#spine-search-gdc" --print-build-logs
 
 get_depends:
 	hwd=$$(echo `pwd`) && \
diff --git a/org/config_make.org b/org/config_make.org
index 4f91db4..6e20002 100644
--- a/org/config_make.org
+++ b/org/config_make.org
@@ -41,622 +41,12 @@
 0
 #+END_SRC
 
-* spine
-** spine makefile :makefile:
-*** tangle
-
-#+HEADER: :noweb yes
-#+BEGIN_SRC makefile
-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'
-SpineSearchAction := 'https://sisudoc.org/spine_search'
-SpineCGIform      := 'spine_search'
-SpineSQLdb        := 'spine.search.db'
-
-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 $${dir} && \
-	    if [[ "arsd" == $${dir} ]]; then \
-	      echo $${dir} && \
-	      rm -rf $${dir} && \
-          mkdir $${dir} && \
-          aria2c -o "$${dir}/cgi.d" "https://raw.githubusercontent.com/adamdruppe/arsd/master/cgi.d" && \
-	      cd $${gwd}; \
-	    elif [[ "d2sqlite3" == $${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}
-
-set_depends: get_depends
-	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
-#+END_SRC
-
-<<make_git_snapshot>>
-<<make_phony>>
-
-*** settings [+2] :settings:
-
-*** make archive
-
-#+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"
-
-# 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"
-
-# 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 \
-	  rm -rv ./tarballGitHEAD; \
-	fi;
-
-# create test tarball
-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"
-
-# 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;
-
-# 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
-
-# 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 $$\{DRV}\" HEAD" && \
-	echo "git tag -f doc-reform_v<<spine_version_set>> -m\"doc-reform spine-<<spine_version_set>>\" HEAD"
-
-#+END_SRC
-
-**** changelog
-
-#+NAME: make_changelog
-#+BEGIN_SRC makefile
-changelog_:
-	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" > CHANGELOG_
-
-# git changelog for project
-changelog:
-	git log --pretty=format:'---%+s %+as %ae%+h%d%+b' --no-merges | sed "/^\\s*$$/d" | sed "s/^---$$//" | sed "s/^\(\*\)\+/-/" | sed "s/ \+$$//" | sed "s/ \+$//" > CHANGELOG_
-
-#+END_SRC
-
-**** build commands [+1] :build:compile:
-***** _dub_ build rebuild :dub:
-****** all compiler builds :all:dmd:gdc:ldc:
-******* all builds
-******** default
-
-#+NAME: make_dub_upgrade
-#+BEGIN_SRC makefile
-dub_upgrade:
-	$(DUB) upgrade
-
-#+END_SRC
-
-#+NAME: make_compile_compiler_default
-#+BEGIN_SRC makefile
-default: 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
-
-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
-
-#+END_SRC
-
-****** individual compiler builds :each:
-******* dmd :dmd:
-******** quick builds :quick:
-
-#+NAME: make_dub_compile_dmd_default
-#+BEGIN_SRC makefile
-dmd: dub_upgrade
-	$(DUB) --compiler=dmd --config=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
-	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
-
-dmd_rel_tangle: tangle
-	$(DUB) --compiler=dmd --config=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
-	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
-	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
-	$(DUB) --compiler=gdc --config=spine-release
-
-gdc_rel_tangle: tangle
-	$(DUB) --compiler=gdc --config=spine-gdc
-
-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
-	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
-	mv bin/spine-ldc-ver bin-archive/spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-ldc
-	notify-send -t 0 'D ldc2 compiled test release executable ready' 'spine-$(PROG_VER_DECLARED)-tag-$(PROG_VER_GIT)-ldc'
-
-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
-
-ldc_rel_tangle: tangle
-	$(DUB) --compiler=ldc2 --config=spine-ldc
-
-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:
-	mkdir -p $(PRG_BINDIR); \
-	mkdir -p $(PRG_BINDIR)-archive; \
-	mkdir -p build; \
-	mkdir -p views; \
-	mkdir -p data; \
-	mkdir -p sundry/misc/util/d/cgi/search/cgi-bin/src; \
-	mkdir -p sundry/misc/util/d/tools/markup_conversion; \
-	mkdir -p sundry/misc/editor-syntax-etc/emacs; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/syntax; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/colors; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/ftplugin; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/rc; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/templates; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR)/conf; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR)/io_in; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR)/io_out; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR)/meta; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR)/share; \
-	mkdir -p $(PRG_SRCDIR)/$(PRG_NAME_DIR); \
-	mkdir -p $(PRG_BINDIR);
-
-init: skel
-
-clean:
-	rm -rf build; \
-	rm -rf $(PRG_SRCDIR); \
-	rm -rf $(PRG_DOCDIR);
-
-clean_bin:
-	rm $(PRG_BINDIR)/*
-
-clean_src:
-	rm -rf $(PRG_SRCDIR);
-
-clean_docs:
-	rm -rf $(PRG_DOCDIR)
-
-expunge:
-	rm -f dub.selections.json; \
-	rm -rf build; \
-	rm -rf $(PRG_SRCDIR); \
-	rm -rf $(PRG_BINDIR); \
-	rm -rf $(PRG_DOCDIR);
-
-distclean: expunge
-
-distclean_and_init: expunge
-	mkdir -p views; \
-	mkdir -p sundry/misc/util/d/cgi/search/cgi-bin/src; \
-	mkdir -p sundry/misc/util/d/tools/markup_conversion; \
-	mkdir -p sundry/misc/editor-syntax-etc/emacs; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/syntax; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/colors; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/ftplugin; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/rc; \
-	mkdir -p sundry/misc/editor-syntax-etc/vim/templates; \
-	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
-
-build: $(PRG_SRCDIR)/$(PRG_SRC)
-	$(DC) $(DC_FLAGS) \
-	$(DC_FLAG_BINOF)$(PRG_BINDIR)/$(PRG_BIN) \
-	$(PRG_SRCDIR)/$(PRG_SRC)
-
-rebuild: $(PRG_SRCDIR)/$(PRG_SRC) $(PRG_BINDIR)/$(PRG_BIN).o clean build
-
-makefile_new:
-	make -k tangle_maker
-
-restart: clean tangle
-
-#+END_SRC
-
-**** get project dependencies
-
-#+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" == $${dir} ]]; then \
-	      echo $${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}
-
-set_depends: get_depends
-	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
-
-rm_flakelock:
-	git reset HEAD flake.lock && \
-	touch flake.lock \
-	git rm -f flake.lock
-
-flake_update:
-	git add .; \
-	nix flake lock && \
-	git reset HEAD flake.lock; \
-	cp flake.lock flake.lock_
-
-flake_update_move_lock: flake_update
-	touch flake.lock \
-	git rm -f flake.lock
-
-set_latest: set_depends flake_update rm_flakelock
-
-#+END_SRC
-
-gitDir=dub2nix; git clone --depth=1 https://github.com/lionello/${gitDir} | rm -rf ${gitDir}/.git
-
-**** _meson_ build :meson:
-
-meson using dub
-- works & looks pretty clean
-- but subprojects built externally & not suitable for debian packaging
-
-#+NAME: make_meson_build
-#+BEGIN_SRC makefile
-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
-
-meson: meson_clean_build_dir dub_upgrade meson_build
-
-#+END_SRC
-
-**** testrun (program against document markup) :markup:sample:
-***** pods :pod:
-******* find files
-
-#+NAME: make_project_testrun_0_find_pods
-#+BEGIN_SRC makefile
-find_pods:
-	$(SiSU_MARKUP_SAMPLES_FIND_PODS)
-
-#+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\""; \
-	done; \
-	emacs --batch -Q -q \
-	--eval "(progn \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP)\")) \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP_ORG)\" t)) \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP_ORG_CONTRIB)\" t)) \
-		(require 'org)(require 'ob)(require 'ob-tangle) \
-		(mapc (lambda (file) \
-			(find-file (expand-file-name file \"$(ORGDIR)\")) \
-				(setq-local org-src-preserve-indentation t) \
-			(org-babel-tangle) \
-			(kill-buffer)) '($$ORGFILES)))" 2>&1
-
-#+END_SRC
-
-***** tangle maker: org babel tangle makefile new
-
-#+NAME: make_tangle_1
-#+BEGIN_SRC makefile
-tangle_maker:
-	for f in $(ORGFILELIST); do \
-		ORGFILES="\"org/dr_build_scaffold.org\""; \
-	done; \
-	emacs --batch -Q -q \
-	--eval "(progn \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP)\")) \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP_ORG)\" t)) \
-		(add-to-list 'load-path \
-			(expand-file-name \"$(EMACSLISP_ORG_CONTRIB)\" t)) \
-		(require 'org)(require 'ob)(require 'ob-tangle) \
-		(mapc (lambda (file) \
-			(find-file (expand-file-name file \".\")) \
-				(setq-local org-src-preserve-indentation t) \
-			(org-babel-tangle) \
-			(kill-buffer)) '($$ORGFILES)))" 2>&1
-
-#+END_SRC
-
-**** git snapshot
-
-#+NAME: make_git_snapshot
-#+BEGIN_SRC makefile
-gitsnapshot: distclean tangle
-	git commit -a
-
-#+END_SRC
-
-*** phony :phony:
-
-#+NAME: make_phony
-#+BEGIN_SRC makefile
-.PHONY : all build rebuild debug release \
-	distclean init \
-	tangle gitsnapshot
-
-#+END_SRC
-
 * dr spine_search
 ** spine_search makefile :makefile
 *** tangle
-
 #+HEADER: :tangle ../makefile
 #+HEADER: :noweb yes
 #+BEGIN_SRC makefile
-<<make_cgi_search_makefile>>
-<<make_set_nix>>
-<<make_get_project_cgi_search_dependencies_github>>
-<<make_copy_cgi_search>>
-#+END_SRC
-
-*** make
-
-#+NAME: make_cgi_search_makefile
-#+BEGIN_SRC makefile
 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'
@@ -664,49 +54,40 @@ SpineSearchAction := 'https://sisudoc.org/spine_search'
 SpineCGIform      := 'spine_search'
 SpineSQLdb        := 'spine.search.db'
 
-#+END_SRC
+default: flake-check
 
-**** nix
+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-search-dmd --print-build-logs\n- nix build .#spine-search-ldc --print-build-logs\n- nix build .#spine-search-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-search-dmd" --print-build-logs\n❯❯ nix build ".#spine-search-ldc" --print-build-logs\n❯❯ nix build ".#spine-search-gdc" --print-build-logs\n\n'; \
+	nix flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell"
 
 # nix build
 build:
 	nix-build
 
 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-search-dmd" --print-build-logs
 
 nix-build-ldc:
-	nix build .#spine-ldc --print-build-logs
+	nix build ".#spine-search-ldc" --print-build-logs
 
 nix-build-gdc:
-	nix build .#spine-gdc --print-build-logs
-
-#+END_SRC
-
-**** post build copy
+	nix build ".#spine-search-gdc" --print-build-logs
 
-#+NAME: make_copy_cgi_search
-#+BEGIN_SRC makefile
-# cp cgi search form
-cp-cgi:
-	sudo cp -vi /var/www/cgi/cgi-bin/spine_search /var/www/cgi/cgi-bin/spine_search_old && \
-	sudo cp -vi result/share/cgi-bin/spine_search /var/www/cgi/cgi-bin/spine_search
-
-#+END_SRC
-
-*** get project dependencies
-
-#+NAME: make_get_project_cgi_search_dependencies_github
-#+BEGIN_SRC makefile
 get_depends:
 	hwd=$$(echo `pwd`) && \
 	gwd="$${hwd}/src/ext_depends" && \
@@ -744,24 +125,8 @@ get_depends:
 set_depends: get_depends
 	dub describe | sed 's~$(shell echo `pwd | sed 's_/_\\/_g'`)~.~g'  > dub_describe.json
 
+# cp cgi search form
+cp-cgi:
+	sudo cp -vi /var/www/cgi/cgi-bin/spine_search /var/www/cgi/cgi-bin/spine_search_old && \
+	sudo cp -vi result/share/cgi-bin/spine_search /var/www/cgi/cgi-bin/spine_search
 #+END_SRC
-
-** .env/local
-
-#+HEADER: :NO-tangle ../sundry/spine_search_cgi/.env/local
-#+BEGIN_SRC nix
-export NIX_PATH=/nix/var/nix/profiles/per-user/root/channels/nixos
-#+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 5950ee9..ab9f081 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
@@ -81,37 +81,18 @@ nix show-derivation /nix/store/q7n14bm8j5vzm62qaraczdb4bpyf59vv-spine-0.11.1.drv
 use flake .
 #use flake .#default
 NIX_ENFORCE_PURITY=1
+# - https://github.com/nix-community/nix-direnv
 NixDirEnvVersion="2.2.1"
 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="
 fi
 watch_file flake.lock
 watch_file flake.nix
-#nix flake update && nix flake check --show-trace && nix flake show
+watch_file makefile
 if [ -f .envrc-local ]; then
   source_env_if_exists .envrc-local || source .envrc-local
 fi
-# echo "
-#
-# - nix flake update && nix flake check --show-trace && nix flake show && nix develop .#devShell
-#
-# - nix build .#default --print-build-logs
-# - nix build .#spine-search-ldc --print-build-logs
-# - nix build .#spine-search-dmd --print-build-logs
-# - nix build .#spine-search-gdc --print-build-logs
-#
-# nix-shell '<nixpkgs>' -A nix --pure
-#
-# nix run .#default --print-build-logs
-#
-# nix develop --build .#default --print-build-logs
-#
-# nix shell .#default --print-build-logs --command spine -v
-# nix shell .#default --print-build-logs --command spine --very-verbose --epub --html --html-link-search --html-link-curate --curate --output=\"\$SpineOUT\" ./markup/pod
-# nix shell .#default --print-build-logs --command spine --very-verbose --html --html-link-search --html-link-curate --curate --sqlite-update --sqlite-db-filename=\"spine.search.db\" --cgi-sqlite-search-filename=\"spine_search\" --sqlite-db-path=\"\$SpineDBpath\" --output=\"\$SpineOUT\" ./markup/pod
-# "
 #+END_SRC
 
 **** .envrc-local CHECK MODIFY
@@ -174,8 +155,7 @@ postInstall:
 #+END_SRC
 
 *** flake :flake:
-**** flake static :flake:static:
-***** flake.nix
+**** flake.nix
 
 #+HEADER: :tangle ../flake.nix
 #+HEADER: :noweb yes
@@ -219,7 +199,7 @@ postInstall:
             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
@@ -274,25 +254,25 @@ postInstall:
             inherit installPhase;
             inherit postInstall;
           };
-          spine-search-gdc = stdenv.mkDerivation {
-            inherit pname;
-            inherit version;
-            meta.mainProgram   = "spine_search-gdc";
-            executable         = true;
-            src                = self;
-            inherit shell;
-            inherit devEnv;
-            buildInputs        = [ sqlite ];
-            nativeBuildInputs  = [ dub gdc gnumake ];
-            buildPhase = ''
-              runHook preBuild
-              dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
-              runHook postBuild
-            '';
-            inherit checkPhase;
-            inherit installPhase;
-            inherit postInstall;
-          };
+          #spine-search-gdc = stdenv.mkDerivation {
+          #  inherit pname;
+          #  inherit version;
+          #  meta.mainProgram   = "spine_search-gdc";
+          #  executable         = true;
+          #  src                = self;
+          #  inherit shell;
+          #  inherit devEnv;
+          #  buildInputs        = [ sqlite ];
+          #  nativeBuildInputs  = [ dub gdc gnumake ];
+          #  buildPhase = ''
+          #    runHook preBuild
+          #    dub build --compiler=$(type -P gdc) --build=gdc --combined --skip-registry=all
+          #    runHook postBuild
+          #  '';
+          #  inherit checkPhase;
+          #  inherit installPhase;
+          #  inherit postInstall;
+          #};
           #vendorSha256 = "sha256-0Q00000000000000000000000000000000000000000=";
       });
       devShells = forAllSystems (system:
@@ -323,28 +303,29 @@ postInstall:
             #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-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     = [
+            packages = [
+              dub dmd ldc gnumake
               sqlite
-              dub dmd ldc gdc gnumake
             ];
             inherit shellHook;
           };
+          default = import ./shell.nix { inherit pkgs; };
       });
   };
 }
@@ -509,79 +490,55 @@ postInstall = ''
 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
+    # ❯❯ linker
     #lld
     #mold
-    ## builder
+    # ❯❯ builder
     #ninja
     #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    ### tools
+    # ❯❯❯ tools
     #aria #wget #curl
-    ### candy
-    #starship
   ];
   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
+    echo '
+      shell.nix echo ❯❯
 
-      - 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 flake update && nix flake check --show-trace && nix flake show && nix develop ".#devShell" -c zsh
 
-        nix-build |& nom
+      ❯❯ nix develop
+      ❯❯ nix develop -c zsh
 
-      nix-instantiate | nix show-derivation | jq
-      nix-build . --no-out-link | xargs -o nix-tree
-      nix-tree --derivation .#spine_search
+      ❯❯ nix build
+      ❯❯ nix build ".#default" --print-build-logs
+      ❯❯ nix build ".#spine-search-dmd" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-search-ldc" --print-build-logs |& nom
 
-    dub build --compiler=ldmd --build=release --combined --skip-registry=all
-    "
+      ❯❯ dub build --compiler=ldmd --build=release --combined --skip-registry=all
+    '
   '';
 }
 #+END_SRC
@@ -638,13 +595,13 @@ echo "ldc `${pkgs.ldc}/bin/ldc2 -v`"
   # - nix build `nix-instantiate -I .envrc`
 
   # - nix build -f default.nix && ./result/bin/spine -v && noti -t "spine build" -m "see ./result/bin/spine"
-  # - nix build .#spine
+  # - nix build .#default
 
 # [ nix run ]
 
   # - nix run default.nix --print-build-logs
   # - nix run -I .envrc default.nix --print-build-logs
-  # - nix run .#spine
+  # - nix run .#default
 
 # - nix-shell -I .envrc --pure
 # - nix develop --build -f derivation.nix -I .envrc --print-build-logs
@@ -710,100 +667,6 @@ echo "ldc `${pkgs.ldc}/bin/ldc2 -v`"
   ./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>
@@ -847,35 +710,34 @@ pkgs.callPackage ./derivation.nix {}
 *** devenv.nix :default:devenv:
 
 #+HEADER: :tangle ../devenv.nix
-#+HEADER: :tangle-mode (identity #o755)
+#+HEADER: :tangle-mode (identity #o644)
 #+BEGIN_SRC 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
   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
     # this will create a script that will rebuild and upgrade your setup; using shell script syntax
     (writeScriptBin "nix-rebuild" ''
@@ -885,11 +747,11 @@ buildEnv {
       nix profile upgrade '.*'
     '')
     # puts in your root the nixpkgs version
-      (writeTextFile {
+    (writeTextFile {
       name = "nixpkgs-version";
       destination = "/nixpkgs-version";
       text = lib.version;
-       })
+    })
   ];
 }
 #+END_SRC
@@ -1011,7 +873,7 @@ mkDubDerivation rec {
     homepage    = "https://sisudoc.org";
     description = "cgi sqlite search form for document object search";
     longDescription = ''
-      a sisu like parser and document generator
+      a sisu like parser & document generator
     '';
     homepage    = "https://sisudoc.org";
     license     = licenses.agpl3Plus;
@@ -1144,6 +1006,8 @@ ldc
 sqlite
 nix-prefetch-git
 validatePkgConfig
+nix-output-monitor
+nix-tree
 jq
 git
 #+END_SRC
@@ -1285,6 +1149,8 @@ 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 d9a37e7..8d61170 100755
--- a/shell.nix
+++ b/shell.nix
@@ -4,78 +4,54 @@
 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
+    # ❯❯ linker
     #lld
     #mold
-    ## builder
+    # ❯❯ builder
     #ninja
     #meson
-    ### sqlite search related
+    # ❯❯❯ sqlite search related
     sqlite
-    ### tools
+    # ❯❯❯ tools
     #aria #wget #curl
-    ### candy
-    #starship
   ];
   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 build
+      ❯❯ nix build ".#default" --print-build-logs
+      ❯❯ nix build ".#spine-search-dmd" --print-build-logs |& nom
+      ❯❯ nix build ".#spine-search-ldc" --print-build-logs |& nom
 
-      - nix shell
-        nix shell --print-build-logs
-
-      - 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
-
-      nix-instantiate | nix show-derivation | jq
-      nix-build . --no-out-link | xargs -o nix-tree
-      nix-tree --derivation .#spine_search
-
-    dub build --compiler=ldmd --build=release --combined --skip-registry=all
-    "
+      ❯❯ dub build --compiler=ldmd --build=release --combined --skip-registry=all
+    '
   '';
 }