with import ./config.nix; { hello = mkDerivation { name = "hello"; outputs = [ "out" "dev" ]; meta.outputsToInstall = [ "out" ]; buildCommand = '' mkdir -p $out/bin $dev/bin cat > $out/bin/hello <<EOF #! ${shell} who=\$1 echo "Hello \''${who:-World} from $out/bin/hello" EOF chmod +x $out/bin/hello cat > $dev/bin/hello2 <<EOF #! ${shell} echo "Hello2" EOF chmod +x $dev/bin/hello2 ''; }; }