Ladybird is sponsored now and I seem to remember that Andreas is paid full time to work on it. I don't think Ladybird is still strictly a hobby project anymore.

Ladybird is sponsored now and I seem to remember that Andreas is paid full time to work on it. I don't think Ladybird is still strictly a hobby project anymore. But it was definitely started as a hobby project so your point still stands, mostly. (to be clear, I'm not answering to the question of which programming language should be used to write Ladybird)