try native build inputs so we have it at runtime

pkgs/mkMarkdollPlugin.nix

@@ -1,13 +1,16 @@
 { pkgs }: name: src: let 
-  drv = { buildInputs ? [], }: pkgs.stdenvNoCC.mkDerivation {
-    inherit name src buildInputs;
-    
-    version = "0.0.0";
-    dontUnpack = true;
+  drv = { runtimeInputs ? [], }: 
+    pkgs.stdenvNoCC.mkDerivation {
+      inherit name src;
+      
+      version = "0.0.0";
+      dontUnpack = true;
 
-    installPhase = "
-      mkdir -p $out/bin
-      cp -r $src $out/bin/${name}
-    ";
-  }; 
-in pkgs.lib.customisation.makeOverridable drv { buildInputs = []; }
+      nativeBuildInputs = runtimeInputs;
+
+      installPhase = "
+        mkdir -p $out/bin
+        cp -r $src $out/bin/${name}
+      ";
+    }; 
+in pkgs.lib.customisation.makeOverridable drv { runtimeInputs = []; }