Turn vc back on so project.el will work

thoom-emacs/init.el

@@ -705,9 +705,6 @@
          ;; Unbind to stop overriding avy
          ("C-j" . nil)))
 
-;; Disable vc-mode
-(setq vc-handled-backends nil)
-
 ;;; Programming languages
 ;;;; Treesitter
 (use-package treesit-auto