@Alex Jordan I used el-get and the package system for a long time, but there are a few reasons why I prefer to use Guix. For one thing, I'm not sure what the security situation of ELPA is; are there checksums, etc? I don't know. I know what Guix's situation is.

I've also had upgrades with emacs packages where I really wished I hadn't upgraded, and that I could roll back so I could fix up my emacs config for the new version at my leisure. That comes for free with Guix.