Want to get rid of Ruby RVM and/or have a controlled Python environment? These documents tell you how. The Guix solution is simple and at the same time robust.
This repository contains Pjotr's notes on working with GNU Guix. I have gathered install and 'bootstrapping' Guix, hacking Guix packages with Guile and the philosophy of creating a Ruby environment and getting rid of RVM and the like.
You may want to also read Ricardo's article about Guix on compute clusters and Malcolm's guide.
Enjoy!
Pjotr Prins