diff --git a/src/renderer/frame/events.cljs b/src/renderer/frame/events.cljs
index 8eaeeacc..135397c9 100644
--- a/src/renderer/frame/events.cljs
+++ b/src/renderer/frame/events.cljs
@@ -34,13 +34,13 @@
 (rf/reg-event-db
  ::zoom-in
  [persist]
- (fn [db [_ _]]
+ (fn [db [_]]
    (h/zoom-by db (/ 1 (:zoom-sensitivity db)))))
 
 (rf/reg-event-db
  ::zoom-out
  [persist]
- (fn [db [_ _]]
+ (fn [db [_]]
    (h/zoom-by db (:zoom-sensitivity db))))
 
 (rf/reg-event-db
diff --git a/src/renderer/utils/attribute.cljs b/src/renderer/utils/attribute.cljs
index ff962cb0..601edc42 100644
--- a/src/renderer/utils/attribute.cljs
+++ b/src/renderer/utils/attribute.cljs
@@ -8,9 +8,11 @@
    [renderer.element.hierarchy :as element.hierarchy]
    [renderer.utils.bcd :as bcd]))
 
-(defonce mdn-data (js->clj mdn :keywordize-keys true))
+(def mdn-data
+  "https://github.com/mdn/data/blob/main/docs/updating_css_json.md"
+  (js->clj mdn :keywordize-keys true))
 
-(defn- enhance-data-readability
+(defn enhance-data-readability
   [property k]
   (cond-> property
     (and (get property k) (string? (get property k)))
diff --git a/src/renderer/utils/compatibility.cljs b/src/renderer/utils/compatibility.cljs
index 6537f606..be48b7d7 100644
--- a/src/renderer/utils/compatibility.cljs
+++ b/src/renderer/utils/compatibility.cljs
@@ -4,8 +4,8 @@
    [renderer.document.db :refer [PersistedDocument]]
    [renderer.utils.migrations :as migrations]))
 
-;; https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
 (def ver-regex
+  "https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string"
   #"(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$")
 
 (def Version