Kudos for using GetTogether instead of Meetup, Matrix/Riot instead of Discord or Slack, Discourse instead of whatever close source alternative. It matters a lot for some of us. Is vvvv open source or libre too?
And thanks for pointing this out! I'm afraid the core of vvvv is not open source but all of its libraries are. And also please follow us on mastodon: https://mastodon.xyz/@vvvv