This is awesome. Though mlmym.org does not have any impressum, so I googled it. It should be the instance run by the creator but my mobile device I am currently using does not show me the entire certificate details.

I note this because one should be aware that this has implications regarding security.

Though the creator chose the correct licensing, works under his real name and the code looks good, too.

https://github.com/rystaf/mlmym I did not spot any data gathering things in my fly-through. He gives all the things needed to deploy an own instance to omit this concern.

Bravo!