This is really my first time scripting, I've looked over some basics, and I understand this is probably a challenging project I'm taking on, but I'm interested in starting to design my own Mainframe that stores information on members using Surface GUIs. Any clue how I'd start this? Any help would be greatly appreciated.
I can't really give you any code to do this but I can give you some pointers.
For storing information : I recommend using DataStore as its much better than the old data persistence and saves a lot better.
For the SurfaceGUIs : Reading the wiki page is a really good place to learn about SurfaceGUIs
You might be able to also find many ROBLOX tutorials on the web about both of them.