We haven't planned to share in a devlog or anything, but we have been thinking about starting a series where we do release how we make the simple games that we pump out.
If you're curious, we used Unity for the build. The stars and skulls were manually placed in as the scope of the game was to pump it out quickly, however the scripts attached to them simply moves them down at a set speed only when they're Y position is greater than the ground. Then when it's not greater than the ground it sets off a timer to then just reset the Y position, which automatically causes it to start moving down again, and randomly pick an X position.
We might include a video devlog of the next game we create, since you seem to be interested.