diff --git a/default.nix b/default.nix
index f3b4ed0..83fc4ba 100644
--- a/default.nix
+++ b/default.nix
@@ -19,57 +19,39 @@ pkgs.stdenv.mkDerivation {
     src;
 
   nativeBuildInputs = with pkgs; [
-    sass
-    lightningcss
-    nodejs_22
-    yarn
     cacert
-    curl
-    glib
     html-minifier
+    lightningcss
+    sass
+    yarn
   ];
 
-  SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
-  NIX_SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
-  GIT_SSL_CAINFO = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
-
   configurePhase = ''
     export HOME=$TMPDIR
     mkdir -p _site/style
 
-    # Copy node_modules instead of linking
     cp -r ${nodeModules}/node_modules .
     chmod -R +w node_modules
     cp ${packageJSON} package.json
   '';
 
   buildPhase = ''
-    # Compile SCSS
     echo 'Compiling SCSS'
     sass style/style.scss _site/style/style.css
 
-    # Minify CSS
     echo 'Minifying CSS'
     lightningcss --minify --targets '> 0.25%, not IE 11' _site/style/*.css -o _site/style/*.css
 
-    # Build site with 11ty
     echo 'Building site'
-    yarn eleventy
+    yarn --offline eleventy
 
-    # Minify HTML
     echo 'Minifying HTML'
     html-minifier --input-dir _site --output-dir _site --collapse-whitespace --file-ext html
   '';
 
   installPhase = ''
-    # Create output directory and copy files
     mkdir -p $out
     cp -r _site/* $out/
-
-    # Clean up
     rm -rf node_modules _site package.json
   '';
-
-  dontFixup = true;
-  dontPatch = true;
 }
diff --git a/shell.nix b/shell.nix
index 4634f1c..3230160 100644
--- a/shell.nix
+++ b/shell.nix
@@ -7,19 +7,45 @@ in
 pkgs.mkShell {
   buildInputs = with pkgs; [
     yarn
-    nodejs_22
+    sass
+    lightningcss
   ];
 
   shellHook = ''
-    # Use the same package.json and node_modules as the build
     rm -rf node_modules
     rm -rf package.json
 
     ln -sf ${packageJSON} package.json
     ln -sf ${nodeModules}/node_modules .
 
+    serve() {
+      mkdir -p _site/style
+
+      sass --watch style/style.scss:_site/style/style.css &
+      SASS_PID=$!
+
+      yarn eleventy --serve &
+      ELEVENTY_PID=$!
+
+      cleanup_serve() {
+        echo "Cleaning up serve processes..."
+        kill $SASS_PID 2>/dev/null
+        kill $ELEVENTY_PID 2>/dev/null
+        wait $SASS_PID 2>/dev/null
+        wait $ELEVENTY_PID 2>/dev/null
+      }
+
+      trap cleanup_serve EXIT INT TERM
+
+      wait -n
+
+      cleanup_serve
+
+      trap - EXIT INT TERM
+    }
+
     upgrade_deps() {
-      local mode=''${1:-"minor"}  # default to minor updates
+      local mode=''${1:-"minor"}
 
       case $mode in
         "major")
@@ -48,17 +74,17 @@ pkgs.mkShell {
     }
 
     export -f upgrade_deps
+    export -f serve
 
-    # Cleanup function
     cleanup() {
       echo "Cleaning up..."
-      rm -rf node_modules package.json
+      rm -rf node_modules _site package.json
     }
 
-    # Register the cleanup function to run when the shell exits
     trap cleanup EXIT
 
     echo "Development environment ready!"
+    echo "Run 'serve' to start development server"
     echo "Run 'upgrade_deps [major|minor|patch]' to upgrade your dependencies"
   '';
 }