@tmw The one place in the Linix kernel where I'd hope copyleft would help, would be SoC support. Anyone who's tried to run Linux on Arm quickly learns how little it helps. The vendors just take an old kernel, modify it, then make it available for download.

Good luck trying to usefully use that, as a user. You're stuck on that precise kernel version forever.

NetBSD's support is all pretty much upstreamed. The small vs giant project effect is important. The license changed the details of how soc vendors are shitty, but doesn't solve anything