We have created a dedicated Mattermost team for BTV workshops, which you can join by following this link:
https://mattermost.web.cern.ch/signup_user_complete/?id=kx5xh86x4jrwzgjfcb5b3odfhr&md=link&sbr=su
Anything related to this year's BTV workshop can be then discussed on this channel:
https://mattermost.web.cern.ch/cms-btv-workshops/channels/btv-workshop-2023-vub