Is this truly open source? I mean, beyond just the UI/environment. A lot of AI models seem to be gratis-but-not-libre. It's great that they're even gratis but

Is this truly open source? I mean, beyond just the UI/environment. A lot of AI models seem to be gratis-but-not-libre. It's great that they're even gratis but I'm curious just how libre this is overall. I'm not being critical - just curious.