I don't remember how I stumbled onto it but I ended up using Pledgie who then uses PayPal under the hood... it sucks. Pledgie takes some reasonable cut but then PayPal considers it a business transaction and takes like a flat $0.30. Remember when I said a few low dollar amount donations? I end up losing 20-30% due to PayPay/Pledgie overhead.

I then tried adding a Bitcoin donation link in markdown in my README (before the transaction fees got silly) but the GitHub and NPM don't know what to do with it.