Nixos-rebuild: delegate everything to build host

[eblechschmidt]

@tobiasBora

Do you also need to wait around 30s before anything happens when switching to a new derivation?

Yes, that is the evaluation time. nom would show that information and how much time exactly is passed since you started it.

@waffle8946

There was some flamegraph nix profiler mentioned on this forum before, but I can’t find it atm.

Did you have this thread in mind? Nix flamegraph or profiling tool?