wtf is steam-achievement-translation-installer?

This is a Windows desktop program that installs Simplified Chinese translations for Steam achievement names and descriptions. It is aimed at regular Steam users on Windows 10 or 11, not developers, and it comes with a modern WinUI 3 style interface. When you open the program, it scans your computer for installed Steam games and their local achievement data. You pick which games you want translated, choose the translation version if more than one exists for that game, and the program shows you exactly what it is about to write for each game before you confirm the install. A page in the app called Managed lists every game it has touched, along with its current status, such as normal, missing, or modified by something else since install. Before changing anything, the program backs up the original files so you can restore them later. If it detects that a file was changed by another program or by Steam itself after installation, it will refuse a normal restore and only proceed if you explicitly confirm a forced restore, keeping a copy of the current file first. The program can also check GitHub for new releases, show the release notes, verify the downloaded installer against a published checksum, and then run it, but only after you click to download, never silently in the background. If a game is not yet in the translation library, the tool can export the game's raw achievement schema file into a zip so you can submit it to the community translation project, which is a separate linked repository the installer pulls its translation data from. The installer itself does not edit translation content and does not upload your Steam files anywhere. The program requires Windows 10 build 19041 or newer, ideally Windows 11, on a 64 bit processor, with Steam already installed. It is released under the MIT license, with third party components and translation data covered separately.