diff --git a/frontend/.oxlintrc.json b/frontend/.oxlintrc.json
index f1df75a3016d..24b92029efee 100644
--- a/frontend/.oxlintrc.json
+++ b/frontend/.oxlintrc.json
@@ -18,7 +18,7 @@
     },
     {
       "jsPlugins": ["eslint-plugin-solid", "@tanstack/eslint-plugin-query"],
-      "files": ["src/**/*.tsx", "src/**/*.ts"],
+      "files": ["src/**/*.tsx"],
       "rules": {
         "explicit-function-return-type": "off",
         "solid/components-return-once": "error",
diff --git a/frontend/src/ts/signals/core.ts b/frontend/src/ts/signals/core.ts
index ef007615eee5..d3b51e8f4950 100644
--- a/frontend/src/ts/signals/core.ts
+++ b/frontend/src/ts/signals/core.ts
@@ -31,7 +31,7 @@ export const [getGlobalOffsetTop, setGlobalOffsetTop] = createSignal(0);
 export const [getIsScreenshotting, setIsScreenshotting] = createSignal(false);
 
 export const [getUserId, setUserId] = createSignal<string | null>(null);
-export const isLoggedIn = () => getUserId() !== null;
+export const isLoggedIn = (): boolean => getUserId() !== null;
 
 export const [getSelectedProfileName, setSelectedProfileName] = createSignal<
   string | undefined
diff --git a/frontend/src/ts/stores/snapshot.ts b/frontend/src/ts/stores/snapshot.ts
index 8a6c187137f0..ae2ee51f8b17 100644
--- a/frontend/src/ts/stores/snapshot.ts
+++ b/frontend/src/ts/stores/snapshot.ts
@@ -11,7 +11,7 @@ const [snapshot, updateSnapshot] = createStore<{
   value: MiniSnapshot | undefined;
 }>({ value: undefined });
 
-export function setSnapshot(newValue: MiniSnapshot | undefined) {
+export function setSnapshot(newValue: MiniSnapshot | undefined): void {
   if (newValue === undefined) {
     updateSnapshot("value", undefined);
   } else {
@@ -22,7 +22,7 @@ export function setSnapshot(newValue: MiniSnapshot | undefined) {
   }
 }
 
-export function getSnapshot() {
+export function getSnapshot(): MiniSnapshot | undefined {
   return snapshot.value;
 }