So I think today has led me to figure out the delivery mechanism for the meditation games launcher. Every time the launcher is opened, it checks data.meditations.games.
If you look today, you'll see this: [0.9,05-01-2019,jan-05.zip,CgGNvJ5z,,http://data.meditations.games/data/jan-05-osx.zip]
If you looked on day 2, you would see: [0.9,02-01-2019,jan-02.zip,J8riyCk8]
It should become pretty obvious how this reads now. The format is as follows:
[(launcher version),(server date),(today's zip),(zip password),(windows zip patch (if needed)),(osx zip patch (if needed))]
I assume if launcher version changes, there is some mechanism for grabbing a new launcher.