CHúng ta có 2 ứng cứ viên sáng giá là:
mattermost:
https://github.com/mattermost/mattermost
https://computingforgeeks.com/install-and-configure-mattermost-on-a-kubernetes-cluster/
https://medium.com/@diego_maia/comprehensive-guide-to-setting-up-mattermost-on-kubernetes-b9873d8733d2
mastodon: https://github.com/mastodon/mastodon
