Arch has a lot of the flexibility of Gentoo (no default desktop/window manager/network software/etc., very small minimal install) but binary packages (with pacm

Arch has a lot of the flexibility of Gentoo (no default desktop/window manager/network software/etc., very small minimal install) but binary packages (with pacman, a package manager that many prefer to apt/yum), as well as the optional but very enticing AUR, which is essentially a first-party hosting of third-party packages (kind of like a one-stop shop for PPAs, if you're used to those). Arguably, the only strong opinion Arch holds is defaulting to systemd; you _can_ replace it, but it's a lot of work and a lot of the package in the main repo won't work as-is if you do.