Not yet, but it's fairly simple, I now have 1 week of NixOS experience ;) I installed with the graphical installer, choose Gnome, added some specific things like darkmode and many packages to the configuration.nix. Then I read about Home Manager and put packages under there.

OOTB the Gnome install was as good as can be. It's a nice way to play with Nix, batteries included.

Right now I need to deploy a server used for bioinformatics, and I need Conda... And that is a pain [0], so again I'm on the fence: Deploy Ubuntu or NixOS and persevere... I'm thinking Ubuntu, then perhaps later in the learning curve I go for Nix or perhaps just make a container to use on Nix.

[0] http://www.jaakkoluttinen.fi/blog/conda-on-nixos/

deploy ubuntu or fedora, and run nix with home-manager. that gives you devshells/devbox which you can migrate into at your own pace

Yes, I just did that, thanx for the tip :)