{
  description = "Zotero Org Export Annotations - Export Zotero annotations to Org-mode files";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            # Node.js ecosystem
            nodejs_20
            nodePackages.npm
            
            # TypeScript tooling
            nodePackages.typescript
            nodePackages.typescript-language-server
            
            # Code quality
            nodePackages.eslint
            nodePackages.prettier
            
            # Runtime dependency (for testing exports)
            pandoc
          ];

          shellHook = ''
            echo ""
            echo "╔══════════════════════════════════════════════════════════╗"
            echo "║     Zotero Org Export Annotations - Dev Environment      ║"
            echo "╠══════════════════════════════════════════════════════════╣"
            echo "║  Commands:                                               ║"
            echo "║    npm install    - Install dependencies                 ║"
            echo "║    npm start      - Start dev server with hot reload     ║"
            echo "║    npm run build  - Build production XPI                 ║"
            echo "║    npm run lint   - Run ESLint                           ║"
            echo "╚══════════════════════════════════════════════════════════╝"
            echo ""
            export PATH="$PWD/node_modules/.bin:$PATH"
          '';
        };

        packages.default = pkgs.stdenv.mkDerivation {
          pname = "zotero-org-export-annotations";
          version = "1.0.0";
          src = ./.;
          
          nativeBuildInputs = with pkgs; [
            nodejs_20
            nodePackages.npm
          ];

          buildPhase = ''
            export HOME=$(mktemp -d)
            npm ci --ignore-scripts
            npm run build
          '';

          installPhase = ''
            mkdir -p $out
            cp -r .scaffold/build/*.xpi $out/
          '';
        };
      }
    );
}