Convert style to openstreetmap-carto's one

[tommasodelorenzo]

I would like to use my personal style to render tiles using openstreetmap-tile-server.
A recent development makes it possible, by mounting the personal style's .lua, .style, .mml files.
Is it possible to convert your .json file in such configuration files?
I am a totally new to this world, so please excuse me if the question is trivial.