diff --git a/apps/client/src/services/i18n.spec.ts b/apps/client/src/services/i18n.spec.ts
new file mode 100644
index 000000000..12d93e100
--- /dev/null
+++ b/apps/client/src/services/i18n.spec.ts
@@ -0,0 +1,21 @@
+import { LOCALES } from "@triliumnext/commons";
+import { readFileSync } from "fs";
+import { join, dirname } from "path";
+import { fileURLToPath } from "url";
+
+const scriptDir = dirname(fileURLToPath(import.meta.url));
+
+describe("i18n", () => {
+    it("translations are valid JSON", () => {
+        for (const locale of LOCALES) {
+            if (locale.contentOnly) {
+                continue;
+            }
+
+            const translationPath = join(scriptDir, "..", "translations", locale.id, "translation.json");
+            const translationFile = readFileSync(translationPath, { encoding: "utf-8" });
+            expect(() => JSON.parse(translationFile), `JSON error while parsing locale '${locale.id}' at "${translationPath}"`)
+                .not.toThrow();
+        }
+    });
+});
diff --git a/apps/server/src/services/i18n.spec.ts b/apps/server/src/services/i18n.spec.ts
index 0156b2e0c..050cc2cd1 100644
--- a/apps/server/src/services/i18n.spec.ts
+++ b/apps/server/src/services/i18n.spec.ts
@@ -1,30 +1,18 @@
-import { describe, expect, it } from "vitest";
-import * as i18n from "./i18n.js";
-import path from "path";
-import fs from "fs";
-
-function checkTranslations(translationDir: string, translationFileName: string) {
-    const locales = i18n.getLocales();
-
-    for (const locale of locales) {
-        if (locale.contentOnly) {
-            continue;
-        }
-
-        const translationPath = path.join(translationDir, locale.id, translationFileName);
-        const translationFile = fs.readFileSync(translationPath, { encoding: "utf-8" });
-        expect(() => {
-            JSON.parse(translationFile);
-        }, `JSON error while parsing locale '${locale.id}' at "${translationPath}"`).not.toThrow();
-    }
-}
+import { LOCALES } from "@triliumnext/commons";
+import { readFileSync } from "fs";
+import { join } from "path";
 
 describe("i18n", () => {
-    it("frontend translations are valid JSON", () => {
-        checkTranslations("src/public/translations", "translation.json");
-    });
+    it("translations are valid JSON", () => {
+        for (const locale of LOCALES) {
+            if (locale.contentOnly) {
+                continue;
+            }
 
-    it("backend translations are valid JSON", () => {
-        checkTranslations("translations", "server.json");
+            const translationPath = join(__dirname, "..", "assets", "translations", locale.id, "server.json");
+            const translationFile = readFileSync(translationPath, { encoding: "utf-8" });
+            expect(() => JSON.parse(translationFile), `JSON error while parsing locale '${locale.id}' at "${translationPath}"`)
+                .not.toThrow();
+        }
     });
 });
diff --git a/apps/server/src/services/i18n.ts b/apps/server/src/services/i18n.ts
index db12fb626..a14385ab6 100644
--- a/apps/server/src/services/i18n.ts
+++ b/apps/server/src/services/i18n.ts
@@ -4,75 +4,7 @@ import sql_init from "./sql_init.js";
 import { join } from "path";
 import { getResourceDir } from "./utils.js";
 import hidden_subtree from "./hidden_subtree.js";
-import type { Locale } from "@triliumnext/commons";
-
-const LOCALES: Locale[] = [
-    {
-        id: "en",
-        name: "English",
-        electronLocale: "en"
-    },
-    {
-        id: "de",
-        name: "Deutsch",
-        electronLocale: "de"
-    },
-    {
-        id: "es",
-        name: "Español",
-        electronLocale: "es"
-    },
-    {
-        id: "fr",
-        name: "Français",
-        electronLocale: "fr"
-    },
-    {
-        id: "cn",
-        name: "简体中文",
-        electronLocale: "zh_CN"
-    },
-    {
-        id: "tw",
-        name: "繁體中文",
-        electronLocale: "zh_TW"
-    },
-    {
-        id: "ro",
-        name: "Română",
-        electronLocale: "ro"
-    },
-
-    /*
-     * Right to left languages
-     *
-     * Currently they are only for setting the language of text notes.
-     */
-    { // Arabic
-        id: "ar",
-        name: "اَلْعَرَبِيَّةُ",
-        rtl: true,
-        contentOnly: true
-    },
-    { // Hebrew
-        id: "he",
-        name: "עברית",
-        rtl: true,
-        contentOnly: true
-    },
-    { // Kurdish
-        id: "ku",
-        name: "کوردی",
-        rtl: true,
-        contentOnly: true
-    },
-    { // Persian
-        id: "fa",
-        name: "فارسی",
-        rtl: true,
-        contentOnly: true
-    }
-].sort((a, b) => a.name.localeCompare(b.name));
+import { LOCALES, type Locale } from "@triliumnext/commons";
 
 export async function initializeTranslations() {
     const resourceDir = getResourceDir();
diff --git a/packages/commons/src/lib/i18n.ts b/packages/commons/src/lib/i18n.ts
index 43fa82eb8..5967a1275 100644
--- a/packages/commons/src/lib/i18n.ts
+++ b/packages/commons/src/lib/i18n.ts
@@ -7,4 +7,72 @@ export interface Locale {
     contentOnly?: boolean;
     /** The value to pass to `--lang` for the Electron instance in order to set it as a locale. Not setting it will hide it from the list of supported locales. */
     electronLocale?: string;
-}
\ No newline at end of file
+}
+
+export const LOCALES: Locale[] = [
+    {
+        id: "en",
+        name: "English",
+        electronLocale: "en"
+    },
+    {
+        id: "de",
+        name: "Deutsch",
+        electronLocale: "de"
+    },
+    {
+        id: "es",
+        name: "Español",
+        electronLocale: "es"
+    },
+    {
+        id: "fr",
+        name: "Français",
+        electronLocale: "fr"
+    },
+    {
+        id: "cn",
+        name: "简体中文",
+        electronLocale: "zh_CN"
+    },
+    {
+        id: "tw",
+        name: "繁體中文",
+        electronLocale: "zh_TW"
+    },
+    {
+        id: "ro",
+        name: "Română",
+        electronLocale: "ro"
+    },
+
+    /*
+     * Right to left languages
+     *
+     * Currently they are only for setting the language of text notes.
+     */
+    { // Arabic
+        id: "ar",
+        name: "اَلْعَرَبِيَّةُ",
+        rtl: true,
+        contentOnly: true
+    },
+    { // Hebrew
+        id: "he",
+        name: "עברית",
+        rtl: true,
+        contentOnly: true
+    },
+    { // Kurdish
+        id: "ku",
+        name: "کوردی",
+        rtl: true,
+        contentOnly: true
+    },
+    { // Persian
+        id: "fa",
+        name: "فارسی",
+        rtl: true,
+        contentOnly: true
+    }
+].sort((a, b) => a.name.localeCompare(b.name));