Useful links

Exploring home-manager options: https://home-manager-options.extranix.com/
Exploring the nixos packages repository: https://search.nixos.org/
Difference between home-manager and systemPackages/user.user.<name>.packages: https://discourse.nixos.org/t/why-does-home-manager-also-have-an-option-to-install-user-packages/33982
Checking propagation of PR to unstable: https://nixpk.gs/pr-tracker.html
Checking version upgrades in commits: https://lazamar.co.uk/nix-versions/