
Just maching all network interfaces caused many breakages, see #18962 and #71106. We already don't support the global networking.useDHCP, networking.defaultGateway(6) options if networking.useNetworkd is enabled, but direct users to configure the per-device networking.interfaces.<name?>.… options.
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.