There is a new pull request by mobinmob against master on the void-packages repository https://github.com/mobinmob/void-packages python3-chromecast https://github.com/void-linux/void-packages/pull/15388 python3-chromecast: update to 4.0.1. A patch file from https://github.com/void-linux/void-packages/pull/15388.patch is attached