We needed a derivation for that, but this can also be used in the
Nixery docs building process (which includes nix-1p).
Change-Id: If97cf785a33d703af975da3b41de9b69566dfa81
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5789
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
