Neon 🏳️‍🌈🇺🇦🇪🇺🏳️‍⚧️🇹🇼🇮🇱🏳️‍🌈

I think it’s a joke

But do they?

No.

If the tracks are used as the wires

They’re not. Swiss rails are extra made so that you can walk over them. All electricity goes overhead for security reasons. If anything, they would probably tap into this overhead-grid.

cleaning & maintenance

possibly. But I can very easily imagine specialized trains cleaning them once every day

vandalism

not really a problem here in switzerland

modifying the track to limit the conductive paths (assuming they’re used for this).

They’re most likely not used for this. All electricity is overhead for security reasons, routing solar energy through the rails would destroy that. Doing that (beyond the 100m test-track) would mean a prolongued political discussion.

Even then, he’s still allowed to provide binary blobs. He doesn’t have to provide it as source code. If that was the case, we’d all have to build from source and package managers like apt, dnf and flatpak wouldn’t exist.

All he has to do is make the source code available, i.e. just link back to the original Github Repo.

Licence doesn’t apply to the creator.

He already owns the copyright, he doesn’t need a licence, he doesn’t need to adhere to the gpl