Last time I checked they cripple the self-hosted version, asking to subscribe for enterprise plan here and there. Source: deployed their chat locally a couple of weekends ago. Overall, I liked their Slack clone, they this one was a red flag to me. Now I’m not sure we want to deploy this, but I know very little alternatives. Zulip, but it cripples its self-hosted version too. It allows just 10 mobile users (notifications). Maybe Matrix it is then, but it’s not very suitable for airgapped company-wide deployment.

> Maybe Matrix it is then, but it’s not very suitable for airgapped company-wide deployment

Element is literally built for airgapped company-wide deployments - this is precisely what https://element.io/server-suite is? It was originally built to install onto SIPRnet; it's been airgap-first since day 1.

Hi Matthew, thanks for the clarification. Then, Matrix is the only player who does not cripple self-hosted instances, I assume.

Matrix is the protocol, so doesn’t do implementations (just like w3c doesn’t do web servers any more). But the distribution from Element indeed is self-host first, and doesn’t break stuff if you’re airgapped. The paywall (such as it is) is that features which empower the enterprise over the user are paid, whereas one which empower the end-user are FOSS.

Mattermost is AGPLv3. You can deploy the whole stack and own your data without paying a cent to Mattermost the company.

How are you expecting the devs to get paid with zero incentive for customers to do so?