add r2 mcp plugin

pkgs/by-name/ra/radare2-mcp/package.nix

@@ -0,0 +1,35 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  meson,
+  ninja,
+  pkg-config,
+  radare2,
+}:
+
+stdenv.mkDerivation rec {
+  pname = "radare2-mcp";
+  version = "1.5.4";
+
+  src = fetchFromGitHub {
+    owner = "radareorg";
+    repo = "radare2-mcp";
+    rev = version;
+    hash = "sha256-YdniXuAiwR/oEFM14/LyxLL3HVI2K2/np8wQETkj01A=";
+    # hash = "sha256-6Xy0oAR1DbdwxPgCQZVB3igSNUNbjFiNwUNTobRm070=";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+  ];
+
+  buildInputs = [
+    radare2
+  ];
+
+  mesonFlags = [
+    "-Dr2_prefix=${radare2}"
+  ];
+}