Mac
While Mac and Linux are not officially supported, they do work.
Unofficial Guide - How to play Path of Diablo on Mac
Instructions:
0. I suggest to remove your previously installed wine, winetricks, xquartz
1. Run the install script in the repo: https://github.com/BaReinhard/pod-installer-utils bash install.sh
2. Run wine explorer
3. Download the English version of Diablo II and Diablo II:LOD Digital Download, WINDOWS EDITION from battle.net website. Buy it if you don't already own it in your account. (DO NOT GET MAC EDITION)
4. Download the Path of Diablo Launcher installation file: https://pathofdiablo.com/wiki/index.php?title=Download
5. Use wine to run the PoD Launcher installer. Select your Diablo II installation folder before clicking next during installation. This step is crucial.
6. To play use wine explorer to navigate to your Path of Diablo Launcher and run it.