nicola, en From my experience as a maintainer of midly successful open-source projects, I have come to the conclusion that people who criticize accepting payment to work on such projects are either acting in bad faith or are incredibly naive.
Anyway, Jacob Kaplan-Moss’s recent Paying people to work on open source is good is a stellar post on the topic of open-source sustainability.
https://jacobian.org/2024/feb/16/paying-maintainers-is-good/