feat: unified watch server under org-garden

flake.nix

@@ -4,16 +4,16 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
-    pipeline.url = "path:./pipeline";
+    org-garden.url = "path:./org-garden";
   };
 
-  outputs = { self, nixpkgs, flake-utils, pipeline }:
+  outputs = { self, nixpkgs, flake-utils, org-garden }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs { inherit system; };
         fs = pkgs.lib.fileset;
 
-        pipelineApp = pipeline.packages.${system}.default;
+        orgGardenApp = org-garden.packages.${system}.default;
 
         # Pre-fetched npm dependency tree (node_modules).
         # src is filtered to only package.json + package-lock.json so that
@@ -36,7 +36,7 @@
           '';
         };
 
-        # The build application wrapper script
+        # The build application wrapper script (one-shot build)
         buildApp = pkgs.writeShellApplication {
           name = "build";
           runtimeInputs = [ pkgs.nodejs_22 ];
@@ -54,18 +54,43 @@
             # Drop in pre-built node_modules
             ln -s ${quartzDeps}/node_modules "$WORK/repo/node_modules"
 
-            # Run the pre-compiled pipeline escript (org → md, citations transform)
-            ${pipelineApp}/bin/pipeline "$NOTES_DIR" \
+            # Pass paths via environment for org-garden
+            export QUARTZ_PATH="$WORK/repo"
+            export NODE_PATH="${pkgs.nodejs_22}/bin/node"
+
+            # Run org-garden build (org → md → static site)
+            ${orgGardenApp}/bin/org-garden build "$NOTES_DIR" \
               --output "$WORK/repo" \
               --content-dir "$WORK/repo/content"
 
-            # Build the static site from within the repo copy so relative paths
-            # (e.g. ./package.json in constants.js) resolve correctly.
-            # --output is absolute so the result lands in the caller's cwd.
-            cd "$WORK/repo"
-            node quartz/bootstrap-cli.mjs build \
-              --directory "$WORK/repo/content" \
-              --output "$ORIG_CWD/public"
+            # Copy public output to caller's cwd
+            cp -r "$WORK/repo/public" "$ORIG_CWD/public"
+          '';
+        };
+
+        # Development server with watch + live reload
+        notesApp = pkgs.writeShellApplication {
+          name = "notes";
+          runtimeInputs = [ pkgs.nodejs_22 orgGardenApp ];
+          text = ''
+            NOTES_DIR="''${1:?Usage: notes <notes-dir>}"
+            NOTES_DIR=$(realpath "$NOTES_DIR")
+
+            # Set up writable working copy
+            WORK=$(mktemp -d)
+            trap 'rm -rf "$WORK"' EXIT
+            cp -r ${self}/. "$WORK/repo"
+            chmod -R u+w "$WORK/repo"
+            ln -s ${quartzDeps}/node_modules "$WORK/repo/node_modules"
+
+            # Pass paths via environment
+            export QUARTZ_PATH="$WORK/repo"
+            export NODE_PATH="${pkgs.nodejs_22}/bin/node"
+
+            # org-garden reads these internally
+            org-garden serve "$NOTES_DIR" \
+              --output "$WORK/repo" \
+              --content-dir "$WORK/repo/content"
           '';
         };
       in
@@ -85,9 +110,11 @@
 
         packages.default = buildApp;
         packages.build = buildApp;
-        packages.pipeline = pipelineApp;
+        packages.notes = notesApp;
+        packages.org-garden = orgGardenApp;
 
         apps.default = { type = "app"; program = "${buildApp}/bin/build"; };
         apps.build = { type = "app"; program = "${buildApp}/bin/build"; };
+        apps.notes = { type = "app"; program = "${notesApp}/bin/notes"; };
       });
 }