Yesterday we were considering alpine because of the amount of vulnerabilities in gcc

The vulnerability exists in the interaction between OpenSSH, the code library implementing SSH connections, and musl, a lightweight alternative to the libc library that, unlike most other Linux distributions, is used in Alpine.

Beside Alpine Linux , musl is used e.g. in Chimera Linux and OpenWrt (and it’s fork LEDE ?) and possibly Void and Gentoo.