Hey Barry,
Appreciate the response, definitely makes sense from the hosting side to keep things simple, I guess my issue is more with the review process. As I know my source code compiles and works correctly on my machine, and of course the extension itself works fine on Twitch. However, getting it to compile on a completely new system always seems to come with headaches. I often have to confirm the version of node or npm the reviewer is using in order for the extension to compile for them correctly.
Submitting a Docker image file for review instead would take a lot of that guesswork out of the process. Instead of me having to create and submit detailed environment setup and build instructions, an environment that I know will run and compile the code could be submitted via Docker instead.
From a hosting perspective it makes sense they want to keep things simple, but for review it would be great if we could use Docker to take out some of the guess work.