Learning Roblox Lua

If you want to learn to script on Roblox you will need to learn Roblox Lua, apart from a few functions implemented by exploit devs Roblox Lua is all you use to write Roblox scripts. If you are looking for some good places to learn about Lua and some people to answer your questions the normal Roblox Lua forums should be able to answer most questions. Some good Roblox Lua resources are https://devforum.roblox.com/ and https://scriptinghelpers.org/. If you are looking for some more exploiting specific resources I would recommend https://v3rmillion.net/. If you are looking for good tutorials 3dsboy08 (creator of Synapse X) has some good ones https://www.youtube.com/c/3dsboy08/, and any normal Roblox Lua tutorials.

Serversides and Filtering Enabled

If you were exploiting a few years ago you might have remembered when you could kill other players, and use admin commands and it would all replicate on the server. This was what would happen before Filtering Enabled or FE. FE made it so the client wouldn't replicate to the server, so you could still do things like flying and teleporting, but you couldn't kill other players or mess with the server. So now we have serversides, they are exploits that are made specifically to run on the server, and they allow you to do things like using admin commands and killing other players, but they only work on specific games. 

The only working exploit after Byfron is Rouge, but I don't recommend using it since the owner ran away with 6k, and the executor has no core GUI support