Thinking out load here,
The PHP community seems to be really good at monetizing open source.
The creator of Laravel has done it well.
And now so has Caleb. Most of his 100K is actually coming from premium content for LiveWire, he’s just using GitHub sponsor as a simple way to handle subscriptions (very smart).
I haven’t seen too many contributors in the Elixir ecosystem monetizing well, the one exception is Oban. Maybe there is an opportunity for Chris and Dockyard to monetize Phoenix and Phoenix LiveView in a similar way (with premium video content).
But maybe the difference is that the PHP community it much larger, thus a much larger market to sell to.