Please keep in mind this is not a buildable version of the client. This repository only contains the implementation of the socket and HTTP connections, which you are free to analyze and improve.
You can find the complete jar in the Releases section.
Install Fabric Loader 1.21.1, preferably version 0.15.11 but it doesn't matter
Download Fabric API and put it in your mods folder
Put the jar in your mods folder
Run the game
Anything that needs to use a real server connection (IRC, cloud configs, whatever that store shit is) will crash/not work
Sometimes the client might launch as a black screen. You might think this is a crack issue, but no, it is an issue with the client
If you have something running on port 7565 or 8080 it will not work
The client was cracked in 5 hours through the use of a replay attack
The jar is slightly heavier than the original due to the inclusion of both the Windows and Linux natives
The authentication is terrible and almost non-existent
It is recommended to not use this client
Aidan - Cracking
GurteX - Making this shit paste
SparkyKR - Providing the account