You could try orgs such as Human Rights Watch or Amnesty International, with the caveat that they have been accused of favouring one side, or another in particular instances. To echo @[email protected] what you may consider a violation may not carry the same weight from someone else’s perspective.
Here’s a HRW report from 2021. You could also look at what other non-western countries publish (ex: China), keeping in mind everyone has their own agenda and/or perspective
I’ve got no experience with nixos (so YMMV), but I do run libvirt . Is virt-manager available in your install and if so what happens when you try to run virt-manager from the command line? IIRC I deployed my Win11 VM straight from the virt-manager gui and didn’t need to touch any of the config files