From 5dffe7eebfcc164d93671033860a7aaea4360ee4 Mon Sep 17 00:00:00 2001
From: Brian McKenna <brian@brianmckenna.org>
Date: Sat, 25 Nov 2023 20:13:41 +1100
Subject: [PATCH] extest: init at 1.0.2

---
 nixos/modules/programs/steam.nix   | 11 +++++++++++
 pkgs/by-name/ex/extest/package.nix | 26 ++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 pkgs/by-name/ex/extest/package.nix

diff --git a/nixos/modules/programs/steam.nix b/nixos/modules/programs/steam.nix
index c7f1e622f7ba..a52dfca67e1c 100644
--- a/nixos/modules/programs/steam.nix
+++ b/nixos/modules/programs/steam.nix
@@ -56,6 +56,8 @@ in {
           # use the setuid wrapped bubblewrap
           bubblewrap = "${config.security.wrapperDir}/..";
         };
+      } // optionalAttrs cfg.extest.enable {
+        extraEnv.LD_PRELOAD = "${pkgs.pkgsi686Linux.extest}/lib/libextest.so";
       });
       description = lib.mdDoc ''
         The Steam package to use. Additional libraries are added from the system
@@ -114,6 +116,15 @@ in {
         };
       };
     };
+
+    extest.enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = lib.mdDoc ''
+        Load the extest library into Steam, to translate X11 input events to
+        uinput events (e.g. for using Steam Input on Wayland)
+      '';
+    };
   };
 
   config = mkIf cfg.enable {
diff --git a/pkgs/by-name/ex/extest/package.nix b/pkgs/by-name/ex/extest/package.nix
new file mode 100644
index 000000000000..a0df42265da5
--- /dev/null
+++ b/pkgs/by-name/ex/extest/package.nix
@@ -0,0 +1,26 @@
+{ lib
+, fetchFromGitHub
+, rustPlatform
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "extest";
+  version = "1.0.2";
+
+  src = fetchFromGitHub {
+    owner = "Supreeeme";
+    repo = "extest";
+    rev = version;
+    hash = "sha256-qdTF4n3uhkl3WFT+7bAlwCjxBx3ggTN6i3WzFg+8Jrw=";
+  };
+
+  cargoHash = "sha256-JZPiTzr9KaaqiXKhsGOYmYMtjNzPQzKhqyfSlbeqME8=";
+
+  meta = with lib; {
+    description = "X11 XTEST reimplementation primarily for Steam Controller on Wayland";
+    homepage = "https://github.com/Supreeeme/extest";
+    platforms = platforms.linux;
+    license = licenses.mit;
+    maintainers = [ maintainers.puffnfresh ];
+  };
+}