Do you use Mull browser? If so you may want to donate to keep Divested computing alive so they can continue to maintain Divest os and Mull among other things.
So this one guy maintains a mobile OS and a browser and an openwrt fork? That seems like too much work for one person and too few people to have issues with lack of donations if he actually does pull it off.
Two browsers, Mull (Firefox Android) Mulch (Chromium Android), and their own System Webview, and a bunch of their own apps, and comparison tables for releases etc. They are incredibly hard working and usually release updates same day as a security patch is released.