Once launched it will switch the mounting points of the gamecard(sd2vita) and the memory card (ux0/uma0), so you can use both to install homebrew/games and switch between them in less than a minute, just open the app and wait for the Vita to reboot.
Instructions are on Github, here's the link: https://github.com/theKlanc/VitaMemorySwap
Please read the instructions carefully, and feel free to ask me any doubts here or on a twitter DM @TheKlanc.
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