Meh low effort, but here you go. Take this more as an introduction than a how to guide.
Public Servers: --US host https://planarally.10leej.com/ --EU Host https://planarally.dndbox.com/
Planar Ally Website: https://www.planarally.io/ Github: https://github.com/Kruptein/PlanarAlly/ Docker Container: https://hub.docker.com/r/kruptein/planarally