Hi Guix! There is a regular event in Lyon, called JDLL (journées du logiciel libre): <https://jdll.org/>. It will happen end of may this year.
We have until march 16 to submit a proposal for a talk or a booth. If we can gather at least three more people (other than me) who will be coming and give a hand, I would like to submit for a booth. The event is similar to CdL in Toulouse where we have been present for two years now. The booth was quite successful, and it's a good occasion to get together. Note that the event is mostly French-speaking. Thoughts? Volunteers? I'll bring stickers ;)