I jumped on to see a demo and got stuck at the start where it wants me to add DB credentials. First thing is that I just wanted to fool around to see what I can do with it - it would be nice to have some playground DB for that instead of having to connect an existing set. Second thing - I'd be kind of hesitant giving access to my production DB to it this way. Do you consider adding some credentials store so I could feel that you guys cannot use it from your side (in case you get hacked)?