we are able to parse str to int in the kernel

scripts/yt-block/unkillable-process-kernel-module.nix

@@ -0,0 +1,32 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, kernel
+, kmod
+}: 
+
+# from: https://ortiz.sh/linux/2020/07/05/UNKILLABLE.html
+
+stdenv.mkDerivation rec {
+  name = "unkillableKernelModule-${version}-${kernel.version}";
+  version = "0.1";
+
+  src = ./.;
+
+  hardeningDisable = [ "pic" "format" ];
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  makeFlags = [
+    "KERNELRELEASE=${kernel.modDirVersion}"
+    "KERNEL_DIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+    "INSTALL_MOD_PATH=$(out)"
+  ];
+
+  meta = with lib; {
+    description = "A kernel module that makes a char-device /dev/unkillable, from which you can read($your_pid) from, which then makes your process unkillable. code from: https://ortiz.sh/linux/2020/07/05/UNKILLABLE.html";
+    homepage = "https://ortiz.sh/linux/2020/07/05/UNKILLABLE.html";
+    license = licenses.gpl2;
+    maintainers = [ ];
+    platforms = platforms.linux;
+  };
+}