

The most recent commit is just for a github issue template. In reality all development done in the past 10 years has been closed-source. Only that's the source from 10 years ago. The project has a Github with source licensed under GPL. I'd been using it for years to run a script that bypasses Youtube age verification without having an account.

I always thought Tampermonkey was open-source, considering its popularity among hobbyists. People in a chat I'm in were discussing this issue and I was shocked. TLDR: Tampermonkey (a browser extension that allows you to run custom scripts on any site conveniently, without writing and publishing your own extension) has been closed-source for 10 years
