app source code

[mirsella]

hello, i would love to have acess to the app source code, if this app is open source as i can't find any info on it.
would be pretty sad an app like this is closed source. there is some reason to keep an app closed but they shouldn't apply to a

i don't have enough storage on my phone to make the backup on the internal storage and i don't have a sdcard slot. my USB key is not recognized by the app even with the magisk module.
i managed to mount RW my USB key to /sdcard/Migrate but the app don't let me put it there since it check the size of the internal storage which isn't enough.

obviously I'm on my own all issues I encounter are on me.

thanks.