ruby rework with contact form

flake.nix

@@ -0,0 +1,44 @@
+{
+  description = "asxp.io — IE Sergei Poljanski website";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+    in
+    {
+      devShells.${system}.default = pkgs.mkShell {
+        buildInputs = [
+          pkgs.ruby_3_4
+          pkgs.bundler
+          pkgs.openssl
+          pkgs.zlib
+          pkgs.libyaml
+        ];
+
+        shellHook = ''
+          export GEM_HOME="$PWD/.gems"
+          export PATH="$GEM_HOME/bin:$PATH"
+          export BUNDLE_PATH="$GEM_HOME"
+
+          if [ -f .env ]; then
+            set -a
+            source .env
+            set +a
+          fi
+
+          if [ ! -f .gems/.bundled ] || [ Gemfile -nt .gems/.bundled ]; then
+            echo "Installing gems..."
+            bundle install --quiet && mkdir -p .gems && touch .gems/.bundled
+          fi
+
+          echo "asxpio dev shell ready"
+          echo "  bundle exec rerun -- rackup -p 3000   - start with auto-reload"
+        '';
+      };
+    };
+}