Yep, injector needs to be admin

Yep, assembly is used for stuff which roblox has inlined or going around retcheck. Some stuff in the end of the api file are unsused tho (never got around to adding custom functions)

Wrote this a year ago as a pet project, not updated for byfron or anything recent, granted it gives you a good idea of how to write a roblox exploit in Rust or work with low level primitives. I can patch up the source code if there's interest. Everything is written in rust (the only real "c++" in the source is a dependency called mlua which wraps the luau source code into a rust api, used to provide a way to compile scripts into bytecode).

Keep in mind its a messy source with a lot of comments for myself but can be helpful for you (never intended to actually release this or mantain it)

https://github.com/RubyBit/Rusty

Run a house with an arduino.. you do know how much ram arduino have, right? You cant do 100000 element array let alone initialize a million element one. You do embedded programming with arduinos and such not systems programming that big. 

My suggestion is to try with and Rpi (if thats possible) as it can handle a much heavier workload and be mindful of your resources.

Instead of using an array use a vector ( I am assuming you want it to grow indefinitely), should do what you want easily. To achieve the behaviour you want with arrays is basically impossible except if you want to check a billion elements and you're also crossing to undefined behaviour territory.