The community becomes easier to join when there is more than one acceptable way to participate.

Groups with a single mode of belonging are small by design, even when they do not mean to be. If the only real way in is the Saturday event or the group chat, then everyone whose life or temperament does not fit that shape stands outside, and the group concludes they were not interested.

Look at your club, team or congregation and count the ways someone can genuinely take part. If there is only one, invent a second: something quieter, shorter, or done from home. Then tell people it counts, out loud, because otherwise they will assume the main way is the only way that does.