{ depot, pkgs, lib, ... }: let cas-serve = pkgs.writers.writeHaskell "cas-serve" { libraries = [ pkgs.haskellPackages.wai pkgs.haskellPackages.warp pkgs.haskellPackages.sqlite-simple depot.users.Profpatsch.my-prelude ]; ghcArgs = [ "-threaded" ]; } ./CasServe.hs; in cas-serve