Hi all, ApacheCon will again be virtual in 2021. The event will be September 21-23. The Call For Papers ends soon, namely: Monday, May 3rd, 2021 8:00 AM (UTC). https://www.apachecon.com/acah2021/cfp.html Cheers, Angelos -- Angelos Tzotsos, PhD President Open Source Geospatial Foundation http://users.ntua.gr/tzotsos