If it is mainly for developers than I would really recommend to use Mattermost, due to the great Github/Gitlab integration and compatibility to Slack integrations.
There is also the option to allow people to log in via IRC with Matterircd.
If it is mainly for developers than I would really recommend to use Mattermost, due to the great Github/Gitlab integration and compatibility to Slack integrations.
There is also the option to allow people to log in via IRC with Matterircd.