{
  description = "Octofriend (synthetic-lab/octofriend) packaged for Nix/NixOS";

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

    # Upstream source (not a flake)
    octofriend = {
      url = "github:synthetic-lab/octofriend";
      flake = false;
    };
  };

  outputs = { self, nixpkgs, flake-utils, octofriend }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        lib = pkgs.lib;
      in
      {
        packages.default = pkgs.buildNpmPackage {
          pname = "octofriend";
          version = "git-${builtins.substring 0 7 (octofriend.rev or "unknown")}";

          src = octofriend;

          # First build will fail telling you the correct value. Paste it here.
          npmDepsHash = "sha256-luAdTozvb0MTuh+xa5qhZPH8YflF9R4GtREAaR8m6Y8=";

          # Ensure a modern node (octofriend is a Node CLI). :contentReference[oaicite:1]{index=1}
          nodejs = pkgs.nodejs_22;

          nativeBuildInputs = [ pkgs.makeWrapper ];

          # If octofriend shells out to git/ssh/etc, keep PATH sane.
          postInstall = ''
            if [ -x "$out/bin/octofriend" ]; then
              wrapProgram "$out/bin/octofriend" \
                --prefix PATH : ${lib.makeBinPath [ pkgs.git pkgs.openssh ]} \
                --set OCTOFRIEND_CONFIG_DIR "$out/share/octofriend/config"
            fi
            # Provide the short alias if upstream didn't already.
            if [ -x "$out/bin/octofriend" ] && [ ! -e "$out/bin/octo" ]; then
              ln -s "$out/bin/octofriend" "$out/bin/octo"
            fi
            # Install the config file
            mkdir -p "$out/share/octofriend/config"
            cat << 'EOF' > "$out/share/octofriend/config/octofriend.json5"
{
  yourName: 'Jules',
  models: [
    {
      model: 'hf:zai-org/GLM-4.6',
      nickname: 'GLM-4.6 (Synthetic)',
      context: 131072,
      baseUrl: 'https://api.synthetic.new/v1',
    },
    {
      model: 'hf:MiniMaxAI/MiniMax-M2',
      nickname: 'MiniMax M2 (Synthetic)',
      context: 98304,
      baseUrl: 'https://api.synthetic.new/v1',
    },
  ],
  defaultApiKeyOverrides: {},
  diffApply: {
    baseUrl: 'https://api.synthetic.new/v1',
    model: 'hf:syntheticlab/diff-apply',
  },
  fixJson: {
    baseUrl: 'https://api.synthetic.new/v1',
    model: 'hf:syntheticlab/fix-json',
  },
}
EOF
          '';

          meta = with lib; {
            description = "Octofriend CLI coding assistant";
            homepage = "https://github.com/synthetic-lab/octofriend";
            license = licenses.mit;
            mainProgram = "octofriend";
          };
        };

        apps.default = flake-utils.lib.mkApp {
          drv = self.packages.${system}.default;
          exePath = "/bin/octofriend";
        };
      });
}