Alpine base, binary only, no sources, apk upgraded to edge: 662.81 MB

OpenBSD-current, self-compiled, with sources: 23.92 GB

FreeBSD-current, self compiled. with sources: 48.53 GB

NetBSD-current, self-compiled, with sources (including pkgsrc): 84.65 GB

Sizes reported by vmcontrol.linveo.com panel Backup page. The panel doesn't say the type of backup or the method of compression. Nevertheless, the relative size comparison seemed interesting.

Maybe I might try self-compiling Alpine. Has anyone here done that?

Thanks to @linveo for kindly donating the VPS used for NetBSD-current.