simple ruby shell.nix

shell.nix

let
  tarball = fetchTarball "https://github.com/NixOS/nixpkgs/archive/refs/tags/24.11.tar.gz";
  pkgs = import tarball { config = {}; overlays = []; };
in

pkgs.mkShell {

  packages = with pkgs; [
    nodejs
    ruby
  ];

  nativeBuildInputs = with pkgs; [
    pkg-config
    libyaml
    postgresql
    mariadb
  ];

  shellHook = with pkgs; ''
    export LOCALE_ARCHIVE="${glibcLocales}/lib/locale/locale-archive";
    export PS1='\[\e[93;1;2m\]nix-shell@\W\[\e[0m\]\\$ '

    export GEM_HOME=$PWD/.nix-gems
    export GEM_PATH=$PWD/.nix-gems:${ruby}/${ruby.gemPath}
    export PATH=$PWD/.nix-gems/bin:$PATH
  '';
}