I’ve been dabbling in windows for docker a bit lately. Containers work great with bridge networking. But you need to pay attention to the paths as they differ from linux.
I would recommend first creating a “user defined bridge network” via docker network create network-name. And then when you create the two containers, attach them to that network with --net=network-name in docker run/create. Then the containers can reach each other via container name through the docker network.
So in lychee, you just use mariadb as the mysql url and use the container port 3306