added exit0 from https://sigma-star.at/blog/2024/02/exit0-code-injection/

mods/nurPkgs/exit0.nix

@@ -0,0 +1,35 @@
+{ stdenv
+, fetchFromGitHub
+, meson
+}:
+
+stdenv.mkDerivation rec {
+	name = "exitß";
+
+	src = fetchFromGitHub {
+		owner = "richardweinberger";
+		repo = "exit0";
+    rev = "f6cdeeb858ad9717b698a21e6fec3bb94b2aa2dd";
+    sha256 = "";
+	};
+
+  nativeBuildInputs = [
+    meson
+  ];
+  
+  buildInputs = [
+  ];
+
+  meta = with lib; {
+    description = "Kill programs so that they exit with a 0 exit code, by injecting code with debug apis";
+    longDescription = ''
+      Killing programs results into non-zero exit codes and monitoring/parent processes will notice. There are situations where you want to forcefully kill a program but make it look like a graceful exit.
+
+      Further reading: https://sigma-star.at/blog/2024/02/exit0-code-injection/
+    '';
+    homepage = "https://github.com/richardweinberger/exit0";
+    license = licenses.gpl2Only;
+    #maintainers = [ ];
+    platforms = platforms.all;
+  };
+}