{
  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs }:
    let
      supportedSystems = [ "x86_64-linux" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });

      shell = pkgs: with pkgs;
        mkShell {
          buildInputs = [
            just
            nodejs-18_x
            nodePackages.pnpm
            uiua
            # cbqn
          ];
        };
    in
    {
      devShells = forAllSystems (system:
        let
          pkgs = import nixpkgs { inherit system; };
        in
        {
          default = shell pkgs;
        });
    };
}