Akademy is organized by KDE e.V.
The IRC channel for the event is #akademy on Libera which is also bridged to Matrix and Telegram. You are welcome to sit in the channel or just pop in and ask questions. You may not always get a quick answer as the channel is not monitored constantly so please stick around for an answer.
The best way to make sure you keep up to date with all the news about Akademy is by subscribing to the Akademy Attendees mailing list