I'm attempting to make a login system for my website (repl is private). Now I do NOT want a register, just a login where I can manually add people to the database, it's an example site for my business (I have my own domain with my site on it). I just use repl for testing. I very little knowledge with database making, but I'm intermediate with HTML, CSS, JS, C++, C#, and Python. I'm extremely experienced with LUA.
But anyways, I want JUST a login system where I can manually add users, no registration form.