I NEED HELP PLEASE.

[HoveredCube]

Here's the story, I'm trying to create a simple flutter V2rayng vpn app. but there is no packages or documents and I have no Idea how to do it, so I decided to bridge between flutter and KOTLIN to run kotlin functions from flutter, but Idk much about kotlin and I cannot entirely read and figure out this source code.
Would someone PLEASE guide me and show me what should I do or what part's of this source code is about connecting and disconnecting to the V2Ray protocols?