Please, not another Slack walled-garden for discussion. Slack is both inaccessible and unsearchable, as well as a privacy concern.

Suggest to use already available open source discussion networks such as freenode and open software with accessible medium such as mailing lists powered by mailman and its archives.

If you insist on using a javascript-tainted webui for community discussions, use open forum software such as discourse ensuring it's properly searchable and archived by major search engines.