The open source hardware project HID Remapper released its latest update on May 20, officially announcing full support for the Valve Steam controller, completely solving the biggest long-standing obstacle to the use of this controller - it can only work in Steam platform games and must keep the Steam program running in the background.

HID Remapper is an open source hardware-independent project that implements the remapping function of the input device by inserting a hardware USB adapter between the input device and the host device to convert the input signal of the handle into a signal format compatible with the host device. Project developer Jack Fedolinsky said all input functions work, including the trackpad, touch sensors, and accelerometers and gyroscopes.
This update not only enables Steam controllers to run independently of Steam Input on Windows and Linux systems, but also expands compatibility with Nintendo Switch, Android devices, and Xbox Series consoles. This means that Steam controllers can now be used on a wider range of platforms and devices, and are no longer limited to within the Steam ecosystem.

While the project is open source and provides documentation for homemade converters for tech enthusiasts to use, pre-made adapters are already available for purchase for as little as $17.50. However, users may need to complete DIY work such as shell production and firmware flashing to obtain a complete solution. This technological breakthrough has brought a significant improvement to the practicality of the Steam controller, making it free from the constraints of platform limitations.
learn more:
https://github.com/jfedor2/hid-remapper