Hi Steve,
I can verify that these Docker scripts work on my end (I use Docker almost daily to test new features/code being built for DSpace 7). The "Javascript heap out of memory." error almost sounds like your Docker installation ran out of memory on your local machine. Could you describe a bit more about your setup? For instance, what OS are you using? Do you have sufficient memory on your machine (to run all the Docker images together, you honestly may need 4-6GB at least just for Docker)? Are you installing Docker Desktop (like noted at
https://wiki.lyrasis.org/display/DSPACE/Try+out+DSpace+7#TryoutDSpace7-InstallviaDocker), or are you using some different version of Docker?
While we honestly haven't tested these Docker scripts on every single OS, I've been told they work on Mac, and I'm on Windows 10 myself. It's possible there's some new bug or issue that has come up recently, but I can verify that I have these Docker scripts running on Windows 10 today.
If you can send us more basic info on this list about your setup, it's possible we'd be able to figure out what is causing the Docker scripts not to work for you.
Tim