I’ve had no issue contributing to fix small holes in NixOS, and Docker covers the rest. So far the only thing that I’ve found genuinely challenging is getting complex binary software running. I have a Nix expression for IDA free but it can only use bundled Qt. VMWare Workstation I outright can’t use, which is a shame since I have a Pro license, but it woke me up to how great KVM is, so there’s that.

I would not recommend NixOS to everyone, but I definitely would recommend it to the type of person who wants to automate their system.