Hello, Mattermost is currently listed as being under AGPL/Apache, but it is seemingly more complicated than this: Some directories (server/templates, server/i18n, server/public, /webapp) are under ...
Open source and FOSS are two different things though. I think Mattermost is open source, just not FOSS and the licencing they mentioned might be wrong (GPL is invasive so they couldn’t have a closed source part IIRC), but it’s still open source as the code is freely available.
Open source and FOSS are two different things though. I think Mattermost is open source, just not FOSS and the licencing they mentioned might be wrong (GPL is invasive so they couldn’t have a closed source part IIRC), but it’s still open source as the code is freely available.
Open source and source-available are two different things.