Mattermost's licensing is a little confusing, but from what I understand, you're only really super-restricted if you use the prebuilt binaries (which have a different license than the source code).
IIRC if you build it yourself it's pretty much all AGPL, with few limitations.
Mattermost's licensing is a little confusing, but from what I understand, you're only really super-restricted if you use the prebuilt binaries (which have a different license than the source code).
IIRC if you build it yourself it's pretty much all AGPL, with few limitations.