There is a new pull request by ericonr against master on the void-packages repository

https://github.com/ericonr/void-packages arduino
https://github.com/void-linux/void-packages/pull/22237

arduino-cli: add gcompat dependency for musl
This is necessary for musl systems, because the toolchains downloaded
by arduino-cli are built in glibc systems and require gcompat to work.

Suggested on #voidlinux

A patch file from https://github.com/void-linux/void-packages/pull/22237.patch is attached