We (the Wikimedia Performance Team https://www.mediawiki.org/wiki/Wikimedia_Performance_Team) are hosting a devroom at FOSDEM 2020 https://fosdem.org/2020/. We are still looking for talk proposals on the topic of Web Performance, with a focus on FLOSS, open standards and research. Deadline is December 2. Details here: https://github.com/wikimedia/fosdem20-web-performance-cfp