namazso/nSkinz ? reverse-engineered prompt

I want you to rebuild this old CS GO skin changer project and get it into a working state on Windows. The repo looks discontinued, so if something is broken or outdated, check the newer advancedfx fork or current docs online and use that to fill in the gaps.

Please keep it close to the original idea, a simple tool that lets someone change how weapon skins look in game, with an easy way to pick items and finishes. I am not looking for a whole new product, just a clean, working version of what this repo was trying to be. Make sure the solution opens and builds properly, fix missing or outdated code, and wire up anything needed so it is usable.

When you are done, leave a short note explaining what you changed, anything that still does not work, and the simplest way to build and run it.