We are a small community around a bunch of Open Source projects and would like a common place to chat. In the past we've used Slack but Slack has changed their APIs (in 2020 and 2021) so automatic (self serve, like slackin) invitation tools don't work anymore for new communities.
We don't want to invite people manually. The only solution the free Slack plans currently offer are to create expiring (30 days or so?) invitation links but someone needs to remember to update it every couple of weeks.
We're considering alternatives to Slack but wanted to reach out and see if anyone knows of a new solution to allow self-serve invitations to free Slack communities.