New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/30341#issuecomment-822940459

Comment:
https://github.com/archlinux/svntogit-community/blob/992efbc7d9d12e1db0e430e95e226c49e5c39a06/trunk/PKGBUILD#L105 and https://git.alpinelinux.org/aports/tree/community/docker/APKBUILD#n128 use `tini-static` as the source for `docker-init`, it seems.