Great question! Why not write a ZIP proposing that after the coming halvening, hanh will get 1% of 20% of the newly minted Zcash?
I got that number by assuming that there is a 20% Dev Fund, which the polls that I’ve seen so far have shown support for, and then saying “Why not allocate 1% of that Dev Fund to hanh!”.
That would be 0.2% of the newly created ZEC. That’s 1,312.5 ZEC per year. If the price of ZEC is $20, that’s only $26,250 per year, but maybe that would help him be able to afford to maintain his software long-term? You could ask him!
Also, then there would be an incentive for hanh to ship awesome software which causes the price of ZEC to go up to $2000 per coin. 
If you want to write a ZIP, there is a deadline, according to this post this Tuesday, the 2nd of June, to write something down specific enough that the community would be able to decide on it.
If you’ve never written a ZIP before, maybe start by cutting and pasting someone else’s ZIP and replacing the content with “Allocate 1% of 20% of the newly minted coins to hanh.”