with import <nix/config.nix>; { system, derivations, manifest }: derivation { name = "user-environment"; system = system; builder = perl; args = [ "-w" ./buildenv.pl ]; manifest = manifest; # !!! grmbl, need structured data for passing this in a clean way. paths = derivations; active = map (x: if x ? meta && x.meta ? active then x.meta.active else "true") derivations; priority = map (x: if x ? meta && x.meta ? priority then x.meta.priority else "5") derivations; # Building user environments remotely just causes huge amounts of # network traffic, so don't do that. preferLocalBuild = true; }