That’s a useful hack. However, I’m more interested in the technical aspects of your setup. Are you using a custom overlay or modifying an existing one to integrate with the Steam headless Docker?

It sounds like you’re utilizing a script or tool to automatically switch the screen resolution when the Moonlight resolution is chosen. This suggests you’re using some advanced automation and scripting capabilities.

To take this to the next level, you might consider leveraging tools like the docker-compose file to automate the setup and configuration of your Docker environment. This could also involve using a tool like docker run with the -v flag to mount your local directory and make changes to the container.

Additionally, you might want to explore using more advanced Docker features, such as Docker volumes or Docker networking, to create a more seamless experience.

Lastly, have you considered using a tool like docker exec to run a command inside the container and execute the script or tool that automates the screen resolution switch?