@Twakyr I’ve been a hardcore gentoo user/fan for 20+ years, I thought I’d never be able to use anything else till I started playing with Nix this year. The granular configurability of each individual package has yet been unmatched for me in any other distro till Nix. For #gentoo though, I’d highly recommend taking great care in tailoring your /etc/portage/make.conf, setup /etc/portage/repos.conf/gentoo.conf with sync-type = git, and use /etc/portage/package.{use,mask,unmask,accept_keywords} as directories for individual packages. I tend to keep a /etc/portage/package.mask/failed file for upgrade blockages fer me to unfuck after a emerge -avuDUN @world succeeds.