The bot joins as a participant, so the meeting needs a Zoom, Google Meet, or Microsoft Teams link.
Connect Google Calendar or Microsoft Outlook, so Reunia can see the meeting. You can do this during setup, from the connect card on Home, or from Settings → Calendar.
During setup, choose Send a meeting bot.
On the auto-join step, leave on the meetings you want captured: every meeting on your calendar, only external meetings, or only meetings you host.
When the meeting starts, the bot joins. The meeting shows under Live now on Home while it is happening, and under Meetings after it is captured.
If the meeting is already underway and is not on your calendar, paste the link instead. See Add Reunia to a live meeting.