Mattermost CEO here, to the extent it's helpful, here's a demo video of how it looks and feels importing a Slack team into Mattermost from 2017: https://youtu.b

Mattermost CEO here, to the extent it's helpful, here's a demo video of how it looks and feels importing a Slack team into Mattermost from 2017: https://youtu.be/AKqHWqrAgpk?t=249 https://youtu.be/AKqHWqrAgpk?t=249 This is when we were largely just an open source project and before raising $70M in venture capital, which has been accelerating development: https://mattermost.com/blog/category/releases/ https://mattermost.com/blog/category/releases/