diff --git a/oni-core.el b/oni-core.el
index 531eac6..a0a20a5 100644
--- a/oni-core.el
+++ b/oni-core.el
@@ -4,7 +4,7 @@
 
 ;; Author: Tom Willemse <tom@ryuslash.org>
 ;; Keywords: local
-;; Version: 2023.0401.230128
+;; Version: 2023.0415.204431
 ;; Package-Requires: (oni-data-dir oni-embrace oni-hydra expand-region multiple-cursors gcmh diminish ws-butler which-key insert-char-preview mixed-pitch ace-window vertico marginalia orderless consult embark docstr)
 
 ;; This program is free software; you can redistribute it and/or modify
@@ -452,6 +452,28 @@ _s_: String list"
                (slot . 0)
                (window-width . oni-core-fit-window-to-buffer)))
 
+;;; Extra debugging
+
+;;; From https://gist.github.com/jdtsmith/1fbcacfe677d74bbe510aec80ac0050c
+(defun oni-core-reraise-error (func &rest args)
+  "Call function FUNC with ARGS and re-raise any error which occurs.
+Useful for debugging post-command hooks and filter functions,
+which normally have their errors suppressed."
+  (condition-case err
+      (apply func args)
+    ((debug error) (signal (car err) (cdr err)))))
+
+(defun toggle-debug-on-hidden-errors (func)
+  "Toggle hidden error debugging for function FUNC."
+  (interactive "a")
+  (cond
+   ((advice-member-p #'oni-core-reraise-error func)
+    (advice-remove func #'oni-core-reraise-error)
+    (message "Debug on hidden errors disabled for %s" func))
+   (t
+    (advice-add func :around #'oni-core-reraise-error)
+    (message "Debug on hidden errors enabled for %s" func))))
+
 ;;; Native Compilation
 
 (setq native-comp-async-report-warnings-errors 'silent)