Universal Control Remapper

https://github.com/HidWizards/UCR
UCR Windows-only open source HID remapper by HidWizards, forked from earlier projects of the same name
Remap any number of inputs to any number of outputs on emulated output devices
Profile support with CLI switching
Input support for "Xbox 360 controllers (XInput), DirectInput controllers, includes gamepads, racing wheels, HOTAS, etc., Keyboard (using interception), Mouse (using interception), Tobii Eye tracker"
Output support for Xbox 360 controller (XInput) (using ViGEm), Dualshock 4 controller (using ViGEm), DirectInput controller (using vJoy), Keyboard (using interception), Mouse (using interception)"
Documentation on the stagnant https://github.com/snoothy/ucr/wiki page

The UCR repo states "Universal Control Remapper is a Windows application which allows the end-user to remap any inputs from devices, such as keyboards, mice, joysticks, racing wheels, eye trackers, etc. to virtual output devices. Remapping is achieved by transforming inputs through plugins to a desired output device."

The usage appears to be low and traffic on the official Discord server is infrequent but the project doesn't appear to be completely dead and the developer is occasionally around. AutoHotKey Interception / AHK AHI is the most active aspect in Discord. The project includes a https://github.com/HidWizards/UCR-Plugins section for niche usecases.