I’ve got it to at least link appropriately. Here’s what I did, not sure if using steam-run is all I needed to do, but I did all three of the following in this thread https://www.reddit.com/r/NixOS/comments/17kwkgv/switched_from_nobara_to_nixos_my_opinion_so_far/ Unreal Engine and Godot Engine needed nix-ld setup + envfhs (not sure if the name is right) Or sometimes steam-run is good enough, but I am used to running them without other stuff, so added the required libraries in nix-ld So I bli...