We also have a devroom at FOSDEM 2022 (online). Last year was a great succes with many cool talks and a social during the day, see
=> https://archive.fosdem.org/2021/schedule/track/declarative_and_minimalistic_computing/ We still have slots for 2 or 3 speakers. If you are interested in talking about your work for 15 minutes and promote Guix do tell us this weekend. You can write Manolis, Julien, Oliver or me directly and we can see if it fits the day. Check out the existing talks for examples. There is no need to be shy - we are among friends. Pj.