There isn't much going on here, since the prestige mechanic doesn't speed up or evolve the game, beyond opening up some upgrades (though they're just increasing some numbers). It would have been nice to see something change with each era, beyond the text.
I didn't play all the way to the end, since I accidentally reloaded the page, and it looks like the save system isn't working.
It's also possible to soft-lock the game by buying too many gold upgrades. The first resource goes into the negative and doesn't recover. Bugs are a fact of life in game jams, though!