nix-env-apps

A simple GUI to make managing declarative nix-env easier

It has two buttons: “Edit Configuration” and “Apply Configuration”

The “Edit Configuration” button launches an editor on ~/.config/nixpkgs/overlays/userPackages.nix, creating it with a useful template if it doesn’t exist. All you have to do is put the applications you want installed between the [ ] brackets. For example, to add Firefox and LibreOffice, you’d type firefox and libreoffice where shown here:

final: prev: {
  userPackages = final.buildEnv {
    name = "userPackages";
    paths = (with final; [

      firefox
      libreoffice

    ];
  };
}

Remember to save before pressing “Apply Configuration”!

The “Apply Configuration” button runs nix-env -riA nixos.userPackages, which makes your changes take effect. Note that this removes any other packages that you may have installed imperatively with nix-env -i. Prefer declarative installation by listing everything you want installed in the “Edit Configuration” configuration file!