Let me know if you run into any issues!
Other players will only see your custom skin/cape if they also have the mod installed (or if the server supports it). File name- TL-Skin-and-Cape-Mod-Forge-1.21.jar
TL Skin and Cape Mod Version: Forge 1.21 File: TL-Skin-and-Cape-Mod-Forge-1.21.jar Let me know if you run into any issues