[lmm]

> The fact that it's open and you can submit contributions, even if they aren't accepted, is proof that it's not a closed system. Make your own fork and use that.

Open alternatives already exist, I use them. But people build other systems that integrate only with docker, and since docker deliberately refuses to follow any fixed standard, other systems can't be compatible with the docker ecosystem. Am I supposed to fork every codebase in the world?