Hey everyone,
I'm seconding a much older suggestion to create some kind of automated command line upload and/or patching system.
My workflow in Unity for Steam and itch is to automatically upload each build via command line. This is easier because it doesn't require you to manually create a new release on the site and drag the files into your browser; you just type in the version number and hit build. This would also help us to mark the target platform for each zip ahead of time, so we don't have to wait for it to process on the site.
The closest thing that I've found is this project, but it is sporadically updated, and it's not yet available to the public (the dev didn't respond to my request to join the closed beta).
Either way, I think this would be a huge improvement to the site, because it would make it much easier for devs to keep our Game Jolt builds in sync with Steam and itch.
EDIT: a related (and much simpler) improvement would be to allow us to upload multiple zips to the website at once. I can select three zips and drag them into the upload box, but only one of them goes through. This would speed up the upload process, because we could drag in all three builds at once and leave them to upload in the background.