I'm having a lot of trouble finding anything that can help with my specific issue, and it really bugs me because I feel like I cannot be the first person to try and figure this out.
I have one of the new 2016 Touch Bar MacBook Pros that I need to reinstall macOS. Typically whenever I need to reinstall OS X I just use my external SSD with a preinstalled El Capitan and run the DMG after some configuring, but with the latest MBP I've realized that I have to use Sierra since El Capitan is not supported. I only have about 1gb left of free space on my external SSD so I can't just upgrade to Sierra and go from there.
Is it possible to host my Sierra DMG on my local network via something like OS X Server or DeployStudio on my other Mac?
That way I can just hold the Option key down as I boot up and connect to my Wi-Fi network and have it "see" the hosted image like a NetInstall or something similar.