Hmm… I'll think about the donation button. Time is far shorter than cash is (though cash isn't boundless) so I gain a certain psychological benefit from recognising that hobbies are hobbies (not work or chores) and treating them as something I primarily do for myself.

Also, professionally, my time is worth at least $30 an hour (based on a quick back of the envelope calculation) which prices it way beyond what I'd expect crowd funding to be able to raise for this kind of thing. Though I suppose that gap might pave a way to crowdfund the hobby coding a little while keeping it clearly a hobby that is done for relaxation.

Like I say, I will think about it.