What is forza-dualsense-decky?

This project is a plugin for the Steam Deck that connects the racing game Forza Horizon 6 to the adaptive triggers and haptic feedback of a Sony DualSense controller. It runs through Decky Loader, a plugin system for SteamOS, and reads live telemetry data that Forza sends out over the network to change how the controller's triggers behave as you drive. As grip decreases in the game, the plugin gradually increases resistance in the accelerator trigger instead of just vibrating, giving the driver a physical sense that the tires are losing traction and encouraging more careful use of the throttle. Beyond that traction feedback, it also adds resistance changes for braking, a kick sensation when the car shifts gears, vibration tied to the anti-lock braking system, and feedback when the engine hits its rev limiter. It supports saved and renamed settings profiles, with the option to automatically pick a profile based on which car you are driving, plus a safe fallback profile and built in controller diagnostics. The author considers the core features complete, with future work focused on bug fixes, wider hardware and SteamOS compatibility, and refinements based on public testing. To work, Forza must be configured to send its telemetry data to the Steam Deck over a specific local network address and port. The plugin is not yet available through the official Decky plugin store, so it currently requires manual installation following the release notes. The README includes clear operational rules for anyone deploying or modifying the plugin, such as never restarting the background loader while the game is actively running, always deploying from Desktop Mode, and rebooting after changes, since each deployment also creates a timestamped backup that can be rolled back if something goes wrong.