yarn: forza dualsense adaptive trigger bridge

hosts/yarn/default.nix

@@ -15,6 +15,7 @@
     ./impermanence.nix
     ./lact.nix
     ./vr.nix
+    ./forza-trigger
 
     inputs.impermanence.nixosModules.impermanence
   ];
@@ -95,14 +96,9 @@
   # live in ./optiscaler-fh5-rdna3.ini; keys not listed there fall through
   # to OptiScaler's "auto" defaults.
   #
-  # Required one-time per-game setup the user has to do in Steam (no API):
-  #   - Properties > Compatibility: pick the GE-Proton tool by hand. The
-  #     `compatTool` option is intentionally unset \u2014 nixpkgs registers
-  #     proton-ge-bin under its versioned id (e.g. GE-Proton10-34), and
-  #     writing the generic "GE-Proton" string silently falls back to
-  #     bundled Proton.
-  #   - In-game: switch the Upscaling option from FSR 2.2 to DLSS or XeSS
-  #     (FSR 2 inputs aren't intercepted). Press Insert to open the Opti
+  # Required one-time in-game setup the user has to do in FH5 (no API):
+  #   - Switch the Upscaling option from FSR 2.2 to DLSS or XeSS (FSR 2
+  #     inputs aren't intercepted). Press Insert to open the OptiScaler
   #     overlay and set the FFX upscaler to FSR 4.
   #
   # OptiScaler.ini is dropped with mode = "init" so in-game overlay edits
@@ -125,8 +121,10 @@
     {
       enable = true;
       closeSteam = true;
+      defaultCompatTool = "proton_10";
       apps."fh5" = {
         id = 1551360;
+        compatTool = "proton_10";
         launchOptions.env = {
           # OptiScaler FSR 4 INT8 path on this RDNA 3 (Navi 32) box.
           # PROTON_FSR4_UPGRADE opts FH5 into Proton's FSR 4 DLL upgrade;
@@ -172,4 +170,8 @@
         ] fromOpti;
       };
     };
+
+
+  # PS5 DualSense adaptive triggers in Forza Horizon 4 / 5.
+  services.forzaTrigger.enable = true;
 }