feat: add input-emulator custom package

nixos/overlays/list.nix

@@ -4,13 +4,17 @@
   nixpkgs.overlays = [
     (import ./swayosd.nix)
     (import ./blueberry.nix)
-    (import ./tutanota-desktop.nix)
+    (import ./tutanota-desktop.nix) 
+
+    (final: prev: {
+      input-emulator = final.callPackage ./pkgs/input-emulator.nix {};
+    })
 
     (final: prev: {
       pam-fprint-grosshack = final.callPackage ./pkgs/pam-fprint-grosshack.nix {};
     })
 
-    (final: prev: {
+   (final: prev: {
       dracula-plymouth = final.callPackage ./pkgs/dracula-plymouth.nix {};
     })
 

nixos/overlays/pkgs/input-emulator.nix

@@ -0,0 +1,29 @@
+{ lib
+, stdenv
+, meson
+, ninja
+, pkg-config
+, cmake
+, bash-completion
+, fetchFromGitHub
+}:
+
+stdenv.mkDerivation rec {
+  pname = "input-emulator";
+  version = "6c35040e6fc4f65ce0519ee76d00d60490bcb987";
+
+  src = fetchFromGitHub {
+    owner = "tio";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-Im0RADqRwlZ/RiZFSVp+HwnWoLdcpRp0Ej6RP0GY0+c=";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    cmake
+    bash-completion
+  ];
+}