Here is a deep dive into what it is, how it works, and how to set it up. What is Keyboard Splitter?
However, the "GitHub splitter" is not without its complexities. The process often requires a working knowledge of the C programming language (for QMK), the command line (for flashing firmware), and basic electronics. A user downloading a splitter script must also understand how to compile the firmware, set the correct pin mapping for their specific microcontrollers, and troubleshoot communication errors (such as a half that powers on but sends no data). The decentralized nature of GitHub means that some splitter repositories are poorly documented or abandoned; a novice might download a splitter designed for an ATMega32u4 that fails entirely on an RP2040 board. Thus, while the code is free, the learning curve acts as a significant barrier to entry. github keyboard splitter
