{
  namespace,
  ...
}:
final: prev:
let
  linux-rpi5 = final.linuxPackagesFor (final.${namespace}.linux-rpi);
  linux-rpi5-latest = final.linuxPackagesFor (
    final.${namespace}.linux-rpi.override {
      kernelVersion = "unstable";
    }
  );
  linux-rpi4 = final.linuxPackagesFor (
    final.${namespace}.linux-rpi.override {
      rpiVersion = 4;
    }
  );
in
{
  ${namespace} = prev.${namespace} // {
    linuxPackages_rpi5-lts = linux-rpi5;
    linuxPackages_rpi4-lts = linux-rpi4;
    linuxPackages_rpi5-latest = linux-rpi5-latest;
  };
}