The OSLCFest is the best place to learn first hand about OSLC solutions, as well as related open-source projects and standards. The 3rd OSLCfest 2021 3 will take place virtually on November 2-4, with 4-hour slots each day starting at 14:00 UTC. This free event will be broadcast on YouTube Live. This will be the 3rd edition of the OSLCFest following the successful event in 2018 and in 2020. Each session is expected to last 25 minutes: 20 minutes for the presentation with 5 minutes for Q&A. Exceptions for longer sessions may be granted.