Enabling the EURKey Layout on NixOS with GNOME and Home-Manager

I recently switched the management of my PC to NixOS and Home-Manager. While everything went smoothly, I noticed that the EURKey Layout was missing in GNOME. It took me some time to enable it again, so here’s how you can do it.

Prerequisites

This guide assumes you have a fully working GNOME setup and Home-Manager configured.

Steps

1. Add the following to your home.nix file:

dconf.settings = {
    "org/gnome/desktop/input-sources" = {
      show-all-sources = true;
      sources = [ (lib.hm.gvariant.mkTuple[ "xkb" "eu" ]) ];
      xkb-options = "";
    };
  };

Via https://discourse.nixos.org/t/keyboard-layout-with-gnome/21996/9, thanks.