flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
    systems.url = "github:nix-systems/default";
    devenv.url = "github:cachix/devenv/v0.6.3";
  };

  nixConfig = {
    extra-trusted-public-keys =
      "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs = { self, nixpkgs, devenv, systems, ... }@inputs:
    let forEachSystem = nixpkgs.lib.genAttrs (import systems);
    in {
      devShells = forEachSystem (system:
        let pkgs = nixpkgs.legacyPackages.${system};
        in {
          default = devenv.lib.mkShell {
            inherit inputs pkgs;
            modules = with pkgs; [{
              packages = [
                ruby_3_2
                libyaml # required to native compile psych gem
              ];

              services.redis.enable = true;
              services.postgres = {
                enable = true;
                package = postgresql_12;
              };

              enterShell = ''
                # Set up bundler to install gems in the project directory
                bundle config set --local path 'vendor/bundle'
              '';
            }];
          };
        });
    };
}