This image uses CATT to provide a simple HTTP API that Node-Red can connect to in order to control ChromeCast devices.
docker run -d --restart unless-stopped \
-e CHROME_CAST_SERVER=192.168.0.42 \
--name catt-server \
ghcr.io/yguy/catt-server:latest
This is under MIT license Copyright (c) 2023 Sebastian Mueller (yWorks)