You should add another way for ppl to contribute (small) amounts on a regular basis. @Liberapay looks like a good candidate as it's #freesoftware as well and (afaik) doesn't violate your privacy as PayPal does.
Patreon is probably more familiar for most ppl, so adding that makes sense as well
BTW: you should add a bech32 BTC address as well as it saves a lot in network fees. You may also want to look into joining the Lightning Network (https://en.wikipedia.org/wiki/Lightning_Network) and sth like btcpayserver
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