{
  description = "Zesdex — AI-native coding agent";

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

  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs { inherit system overlays; };
        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = [ "rust-src" "rust-analyzer" "clippy" ];
        };
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            rustToolchain
            pkg-config
            openssl
            sqlite
          ];

          RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library";
          RUST_LOG = "info";
        };

        packages.default = pkgs.rustPlatform.buildRustPackage {
          pname = "zesdex";
          version = "1.13.0";
          src = ./.;

          cargoLock = {
            lockFile = ./Cargo.lock;
          };

          # Build only the main binary
          cargoBuildFlags = [ "-p" "zesdex-backend" "--bin" "zesdex" ];

          nativeBuildInputs = with pkgs; [ pkg-config ];
          buildInputs = with pkgs; [ openssl sqlite ];

          doCheck = false; # Tests require filesystem access

          meta = with pkgs.lib; {
            description = "AI-native coding agent with workflow orchestration";
            homepage = "https://github.com/asepharyana/zesdex";
            license = licenses.mit;
            mainProgram = "zesdex";
          };
        };
      });
}