I built endoflife.date with it, and it has been great. If I had to do it again, I might pick Mediawiki (or something similar) due to it being a community wiki more than a static site, but Jekyll hasn’t let us down yet.
Really appreciate you building and maintaining it these years! endoflife.date has been an amazing resource ever since you put it up. This has been a great open source success story that I share with people to explain why open source can be great. It's also a great example of the power of crowd-sourcing data. I originally added Ruby[1], Fedora[2], and Alma Linux[3] to endoflife.date and it's rewarded me with years of ability to reference. Prior to this I kept my own notes for the projects I cared most about, but keeping those up to date was a PITA. The best ideas seem obvious in hindsight, and endoflife.date definitely seems obvious :-D
[1] https://github.com/endoflife-date/endoflife.date/commit/7dae...
[2] https://github.com/endoflife-date/endoflife.date/commit/ab16...
[3] https://github.com/endoflife-date/endoflife.date/commit/12a7...