{
  description = "Shared Quixos control-plane protocol types";

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

  outputs = { nixpkgs, flake-utils, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
      in {
        devShells.default = pkgs.mkShell {
          packages = [
            pkgs.nodejs_24
          ];
          shellHook = ''
            if [ -n "''${PS1-}" ]; then
              if [ -n "''${QX_DEV_SHELL_PROMPT-}" ]; then
                PS1="''${PS1#\[qx:''${QX_DEV_SHELL_PROMPT}\] }"
              fi
              export QX_DEV_SHELL_PROMPT="control-plane-protocol"
              PS1="[qx:control-plane-protocol] $PS1"
            fi
          '';
        };
      });
}