[Question] Invitation to Join Beam Slack Channel

[Jo Alex]

Hi, currently I'm joining the Beam Summit 2021 and would like to learn more
by joining the Beam Slack Channel. But it seems I can't join with my
personal email and I don't have the @apache.org email either. I would like
to ask if I can get invited to the Slack channel, or maybe there is another
way to join? Thanks! Regards