In that case, downloading Ren'Py would be the safest option. However, if you trust random internet strangers, here's the two folders and the '.sh' file: https://drive.proton.me/urls/E9XX8S8A3C#jgCSvlI1qTUI
You'll need to set the files as executable, including the ones in whichever folder matches your device's instruction set. Then, you should be able to run it as normal.