Wow, working copy looks great, I want to look at that more. Didn't know about that. Searching the app store for "github" a few years ago, I came up with some pretty crappy apps. I was thinking of writing an automatic github sync with pythonista, which would be ideal because of the functionality with going back to previous versions. That'd be a great backup.
It's a shame about apple's downloading code rule. It's not hard to copy/paste code from the same website you'd be downloading it from if you're willing to put in extra effort. I also don't know how they define 'code'. Workflows could certainly be considered executable code, and yet the gallery allows users to download code snippets. Maybe this isn't concerning to Apple because of the clear limitations of the app, but if they're going to ban the downloading of executable code, they should ban it, not make exceptions for some apps.
I also think it'd make more sense for the rule to be modified to permit apps that only upload/download code written to the user, maybe even to a private server for that app. It'd be great to permit code syncs, just not downloading random code.
It'd be a LOT better to let @omz write built in sync options.