Resolved the following conflicts (by carefully applying patches from the both branches since the fork point): pkgs/development/libraries/epoxy/default.nix pkgs/development/libraries/gtk+/3.x.nix pkgs/development/python-modules/asgiref/default.nix pkgs/development/python-modules/daphne/default.nix pkgs/os-specific/linux/systemd/default.nix
To build the manual, you need Nix installed on your system (no need
for NixOS). To install Nix, follow the instructions at
https://nixos.org/nix/download.html
When you have Nix on your system, in the root directory of the project
(i.e., `nixpkgs`), run:
nix-build nixos/release.nix -A manual.x86_64-linux
When this command successfully finishes, it will tell you where the
manual got generated.