<p><span class="h-card" translate="no"><a href="https://mastodon.social/@bastianallgeier" class="u-url mention">@<span>bastianallgeier</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@getkirby" class="u-url mention">@<span>getkirby</span></a></span> we've been using a self-hosted Mattermost as our community server for a few years now - it's been great. It's basically open source Slack.</p>
