PRs ready for review

https://github.com/NixOS/nixpkgs/pull/279790

https://github.com/NixOS/nixpkgs/pull/259275

https://github.com/NixOS/nixpkgs/pull/243622

https://github.com/NixOS/nixpkgs/pull/280740

https://github.com/NixOS/nixpkgs/pull/278460
https://github.com/NixOS/nixpkgs/pull/279511

https://github.com/NixOS/nixpkgs/pull/283704

This PR fixes nixos-rebuild if you downgrade from unstable to release-23.11, kinda important: