Im trying to run Central on the same host machine as ODK-x but nginx throws an address already in use error.
Has any one managed to run the two on the same host Machine?
That nginx error means that you're trying to run two web servers on the same port.
I think you'd need to fork one of the repos, and modify the docker-compose file to run on a separate port.
E.g. ODK Central exposes 80 and 443: https://github.com/getodk/central/blob/master/nginx.dockerfile#L10
No guarantees this will work straight away, but worth a try!
I'm skirting around the "same port" issue by running ODK Central (and many more apps, many of them exposing standard ports like 80, 443, 8080) on Kubernetes, orchestrated through Rancher. Write-up: Installing ODK central in microsoft azure cloud