added custom package

pkgs/AFKCommands/default.nix

@@ -0,0 +1,52 @@
+{ lib
+, stdenv
+, writeText
+, fetchFromGitHub
+, xorg
+}:
+let
+
+in
+stdenv.mkDerivation rec {
+  pname = "AFKCommands";
+  version = "1.0";
+
+  src = fetchFromGitHub {
+    owner = "ISnortPennies";
+    repo = "AFKCommands";
+    rev = version;
+    sha256 = "sha256-5K7f/GU15nmzvw65p5Nk4f/8hafl9GNHfmAmpCZctQA=";
+  };
+
+  buildInputs = [
+    xorg.libXScrnSaver
+    xorg.libX11
+  ];
+  
+  ConfigText = writeText "config.h" ''
+    const int AFK = 10;
+    const int RESTART = 60;
+    const char* COMMANDS[] = {
+     "echo \"config worked\"",
+     "echo \"sample command 2\"",
+    };
+  '';
+  configurePhase = ''
+  mkdir -p $out/bin
+  export C_INCLUDE_PATH=$out
+  cp $ConfigText $out/config.h
+   '';
+  buildPhase = ''
+  gcc AFKCommands.c -o AFKCommands -Wall -Wextra -Werror -lXss -lX11
+  '';
+  installPhase = ''
+  mv AFKCommands $out/bin/AFKCommands
+  '';
+  meta = with lib; {
+    homepage = "https://github.com/ISnortPennies/AFKCommands";
+    description = "A utility that queries the X server for the user's idle time and prints it to stdout";
+    license = licenses.unlicense;
+    maintainers = with maintainers; [ ];
+    platforms = platforms.linux;
+  };
+}