It's great to see you and OpenRGB here! More Free Software projects should move to Lemmy.
Perhaps you could post a link to this community in your subreddit? I noticed that OpenRGB website still has a Reddit link, but I assume that will be changed later.
Maybe some day you could also start uploading your YouTube videos (great channel btw!) to PeerTube? I don't know much about it though, so I'm not sure how much effort that would require.