This event is hosted in Trackmania and in the title(s) Trackmania (2020). You can participate on your own and registration is not required. And there is a map pool that you can contribute to.
Every week the TM North America Discord community holds a map discovery event in Time Attack. Come join the TM North America Discord server and join us in-game on the Potluck server.
Maps can be submitted in the #weekly-track-potluck channel on Discord throughout the week.
Every week after map discovery we also play a short fun cup on one of the maps from earlier in the evening in Rounds mode.