In reply to @Las:matrix.org
Does anyone know of a nix-y way of doing this in order to make upnpc work? Should I just use networking.firewall.extraCommands?

{ pkgs ? import <nixpkgs> {} }:

let
  fixWrapper = pkgs.runCommand "fix-wrapper" {} ''
    mkdir -p $out/bin
    for i in ${pkgs.gcc.cc}/bin/*-gnu-gcc*; do
      ln -s ${pkgs.gcc}/bin/gcc $out/bin/$(basename "$i")
    done
    for i in ${pkgs.gcc.cc}/bin/*-gnu-{g++,c++}*; do
      ln -s ${pkgs.gcc}/bin/g++ $out/bin/$(basename "$i")
    done
  '';

  fhs = pkgs.buildFHSUserEnv {
    name = "openwrt-env";
    targetPkgs = pkgs: with pkgs;
      [ git
        perl
        gnumake
        gcc11
        unzip
        utillinux
        python3
        patch
        wget
        file
        subversion
        which
        pkgconfig
        openssl
        fixWrapper
        systemd
        binutils
        xclip
        quilt

        ncurses
        zlib
        zlib.static
        glibc.static
      ];
    multiPkgs = null;
    extraOutputsToInstall = [ "dev" ];
#    profile = ''
#      export hardeningDisable=all
#    '';
  };
in fhs.env

This is what I have as of now

In reply to @pepe:matrix.giugl.io
But it fails to compile perl on the target arch

In reply to @eyjhb:eyjhb.dk
I have previously talked about this issue. But I have IPv6-PD working on my router. However, on my WAN (uplink) interface I have a IP 2a06:4000:..., and on the LAN side I have 2a06:4004:.... The default route is to use the WAN side, but that doesn't work after prefix delegation is setup. Is it normal that I have to use the IPv6 that is on the LAN interface?