Was really pumped after playing with Nix for a bit. But got bitten twice in the first day. I tried to run my work project using Nix. It needs Pythons python-prctl library - that doesn't work in Nix. So that's a dud. Next I try to use it as a Nim environment - Nim is unable to compile anything in Nix due to some missing (bundled) Glibc symbol. (Nim works nicely in my standard installation). The cool "export full container" thing mentioned in the tutorial failed for all, even the simplest cases. So I am kinda disillusioned by Nix.