Current configuration for x86_64 computer running Home Manager & NixOS 21.05 with dual boot. This uses Wayland Sway.
To use, install NixOS: https://nixos.org/manual/nixos/stable/index.html#sec-obtaining
After, clone this repo, delete hardware-configuration.nix and generate the correct one using nixos-generate-config.
Inside configuration.nix, there is specific configuration for Broadcom wifi, which can be deleted without problem.