Explain to me what a proxy is and when it’s useful

[swag4lifex (SFML)]

I am looking for a shorter somewhat easy to understand response and i’de rather have somebody explain to me. don’t just comment a link to a sentence or two of information about them as I likely won’t understand. They seem to be quite complex and rarely used or even talked
about

Newproxy()??
When ever I go to create a pcall proxy is one of the few result that comes up since it starts with a p I am quite curious as to what it does

Over the last couple years I’ve been coding I’ve looked at 1000s of scripts from toolbox and I don’t think I can recall ever seeing proxy be used in anyway is it that niche?

[Entildo (Fase)]

A proxy itself is simply an extra server between the client and the server, it can provide privacy, security, and performance in some cases.

newproxy() inside of Roblox is described very nicely on the post below,

Newproxy, what is it and how can I utilize it?

Introduction Hello I’m dand and I’ve been scripting for over a year now and I’ve come across newproxy, a Lua Global that may be confusing to some especially new programmers. Short answer Well its a lua global that can be called to create a blank userdata. In short its explained in the dev hub as ‘Creates a blank userdata , with the option for it to have a metatable.’ Lua Globals What is userdata? Basically since lua is an extension language it offers a custom datatype (e.g strings, number…