So This module will not load in Foundry V12 because the maximum version setting in the module.json is set to 11. I tested this by changing it to 12 and it seems to be working fine other than throwing the following warning on the main page, but does not prevent from loading and operating.
The "Arms Reach" module's manifest contained the following unknown keys: "type", "includes", "systems", "manifestPlusVersion", "allowBugReporter"
So This module will not load in Foundry V12 because the maximum version setting in the module.json is set to 11. I tested this by changing it to 12 and it seems to be working fine other than throwing the following warning on the main page, but does not prevent from loading and operating.