I took over gridstack.js a couple years ago and ended up re-writing it, and transforming it into a modern TS lib with documentation, much smaller footprint (<1/3) and no external dependencies, with a ton of advanced new feature and mobile support out of the box.

This has been taking a lot of my spare time (not that I have much with very busy work) - sponsoring this would help offset some of that time and feel appreciated for the thankless job maintaining an open source is.