wip: temp tweak of makefile

Author: seanstrom

Makefile

@@ -175,7 +175,8 @@ fdroid-max-watches: ##@prepare Bump max_user_watches to avoid ENOSPC errors
 
 fdroid-nix-dir: SHELL := /bin/sh
 fdroid-nix-dir: ##@prepare Create /nix directory for F-Droid Vagrant builders
-	mkdir -m 0755 /nix
+#	mkdir -m 0755 /nix
+	chmod 0755 /nix
 	chown vagrant /nix
 
 fdroid-fix-tmp: SHELL := /bin/sh