Consider license-change

[mpldr]

Hi, seeing how the website states

The self-hosted version is […] always free, with all functionalities.

and given the recent Redis incident, I think switching to a copyleft licence would be a strong move in bolstering that commitment. Of course, this would have implications for users distributing modified versions, but I doubt they are that numerous. Just dropping this for discussion and consideration :)

I apologise if this has been discussed before, I didn't see any discussion on the topic.