KoboldKare is made out of many parts, and each part may or may not be licensed to you. Please read LICENSE to ensure you have license to do what you want with desired assets.
You can learn how to contribute to KoboldKare or VR Mod by reading CONTRIBUTING.md
If you prefer playing with mouse&keyboard in vr then you can toggle a seated mode in options. It removes controllers and snaps camera to bold's head. Having issues with navigation in menus with controller? Known issue, wait for fix. Wanna play with mods? Drag mod files from Steam\steamapps\workshop\content into LocalLow\Naelstrof\KoboldKare VR\mods folder.