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you sir are a God lmao. I'm gonna wait till the full release so how would I keep my saves when I install the  new one?

After downloading the full game again you can move the saves from the www/save folder of the old version to the same folder of the new version. Make sure you copy everything as the global file is needed to show the saves in the loading screen.
It's also explained in the video at around 1:26 btw. :D