Adding your own mods to Mandela is a simple process, given you know what to do. First, you want to make a new group in the Mandela/Views folder. Then, create a SwiftUI view.
I strongly recommend using the included copy of the CVE-2022-46689 PoC, since adding your own versions might break things.
You can overwrite files with the following function:
OverwriteFile(newData, /path/to/file)If you need to change the value of a key in a plist, look in IslandView.swift for an implementation.
Happy modding!