I think I may have found a solution for you. Instead of fetching all of your info from Gists, you can have your game read directly off of its DataStores. Now that DataStores have API functionality through OpenCloud, you can read and change DataStore values remotely through your own tools/web services.
Currently, sleitnick is working on an API handler for easy remote editing. You can view his demo here.
Although it hasn’t been released yet, I think it will be the best/easiest option for keeping settings, lists, configurations, arrays, stats, etc. updated in your DataStores without having to open studio to make changes.
I’m quite exited for his release because I already combine his normal DataStore Editor plugin with the ModuleScript Converter plugin to handle most of all of the DataStore entries/syncs for my games. Soon that combination will be even more powerful by being able to change those DataStores on the fly. 