Run DOSBox in a docker container. I run it on my NAS.
- Add your game archives or folders (you can get games e.g. from https://dosgames.com/)
 - Run 
docker build -t dosbox . - Start with 
docker run -p 8080:8080 dosboxor if you use a volumedocker run -p 8080:8080 -v /local/folder/with/games:/root/dos dosbox - Connect with a browser to your docker host e.g. http://localhost:8080