diff --git a/webapp/src/app/[lang]/page.tsx b/webapp/src/app/[lang]/page.tsx
index 0790a72f..dcd310e9 100644
--- a/webapp/src/app/[lang]/page.tsx
+++ b/webapp/src/app/[lang]/page.tsx
@@ -1,9 +1,8 @@
 'use client';
 
-import MessageForm from '@/components/MessageForm';
 import { MessageData } from '@/utils/readTypedMessages';
+import MessageForm from '@/components/MessageForm';
 import { Box, Button, Link, Typography } from '@mui/joy';
-import { useRouter } from 'next/navigation';
 import { useEffect, useState } from 'react';
 
 export default function Home({ params }: { params: { lang: string } }) {
@@ -57,17 +56,17 @@ export default function Home({ params }: { params: { lang: string } }) {
                 const res = await fetch(
                   `/api/translations/${params.lang}/${msg.id}`,
                   {
-                    method: 'PUT',
-                    headers: {
-                      'Content-Type': 'application/json',
-                    },
                     body: JSON.stringify({
                       text,
                     }),
+                    headers: {
+                      'Content-Type': 'application/json',
+                    },
+                    method: 'PUT',
                   },
                 );
 
-                const payload = await res.json();
+                await res.json();
                 setTranslations((cur) => ({
                   ...cur,
                   [msg.id]: text,
diff --git a/webapp/src/app/api/languages.ts b/webapp/src/app/api/languages.ts
index 197b3614..cf49905a 100644
--- a/webapp/src/app/api/languages.ts
+++ b/webapp/src/app/api/languages.ts
@@ -1,6 +1,7 @@
-import { envVarNotFound } from '@/utils/util';
+/* global globalThis */
 import fs from 'fs/promises';
 import { parse } from 'yaml';
+import { envVarNotFound, logDebug } from '@/utils/util';
 import { simpleGit, SimpleGit, SimpleGitOptions } from 'simple-git';
 
 const REPO_PATH = process.env.REPO_PATH ?? envVarNotFound('REPO_PATH');
@@ -9,7 +10,7 @@ const MAIN_BRANCH = 'main';
 export async function getLanguage(lang: string) {
   let languages: Map<string, Record<string, unknown>>;
   if (!globalThis.languages) {
-    console.debug('Initializing languages');
+    logDebug('Initializing languages');
     const options: Partial<SimpleGitOptions> = {
       baseDir: REPO_PATH,
       binary: 'git',
@@ -17,28 +18,28 @@ export async function getLanguage(lang: string) {
       trimmed: false,
     };
     const git: SimpleGit = simpleGit(options);
-    console.debug('git checkout main pull...');
+    logDebug('git checkout main pull...');
     await git.checkout(MAIN_BRANCH);
-    console.debug('git pull...');
+    logDebug('git pull...');
     await git.pull();
-    console.debug('git done checkout main branch and pull');
+    logDebug('git done checkout main branch and pull');
     languages = new Map<string, Record<string, unknown>>();
     globalThis.languages = languages;
   } else {
-    console.debug('read languages from globalThis');
+    logDebug('read languages from globalThis');
     languages = globalThis.languages;
   }
 
   let translations: Record<string, unknown>;
   if (!languages.has(lang)) {
-    console.debug('read languages from file');
+    logDebug('read languages from file');
     const yamlPath = REPO_PATH + `/src/locale/${lang}.yml`;
 
     const yamlBuf = await fs.readFile(yamlPath);
     translations = parse(yamlBuf.toString()) as Record<string, unknown>;
     languages.set(lang, translations);
   } else {
-    console.debug('read languages from Memory');
+    logDebug('read languages from Memory');
     translations = languages.get(lang) ?? throwLangNotFound(lang);
   }
 
diff --git a/webapp/src/app/api/messages/route.ts b/webapp/src/app/api/messages/route.ts
index 855cc1b2..ff93e4b2 100644
--- a/webapp/src/app/api/messages/route.ts
+++ b/webapp/src/app/api/messages/route.ts
@@ -1,7 +1,7 @@
 import { envVarNotFound } from '@/utils/util';
 import fs from 'fs/promises';
-import path from 'path';
 import { NextResponse } from 'next/server';
+import path from 'path';
 import readTypedMessages, {
   MessageData,
 } from '@/utils/readTypedMessages';
diff --git a/webapp/src/app/api/pull-request/route.ts b/webapp/src/app/api/pull-request/route.ts
index bff2d17b..5ae236e0 100644
--- a/webapp/src/app/api/pull-request/route.ts
+++ b/webapp/src/app/api/pull-request/route.ts
@@ -1,10 +1,11 @@
-import { envVarNotFound } from '@/utils/util';
-import { simpleGit, SimpleGit, SimpleGitOptions } from 'simple-git';
+/* global globalThis */
+import fs from 'fs/promises';
 import { NextResponse } from 'next/server';
 import { Octokit } from '@octokit/rest';
-import fs from 'fs/promises';
 import { stringify } from 'yaml';
 import { version } from '@/../package.json';
+import { envVarNotFound, logError, logWarn } from '@/utils/util';
+import { simpleGit, SimpleGit, SimpleGitOptions } from 'simple-git';
 
 const REPO_PATH = process.env.REPO_PATH ?? envVarNotFound('REPO_PATH');
 const GITHUB_AUTH = process.env.GITHUB_AUTH ?? envVarNotFound('GITHUB_AUTH');
@@ -39,8 +40,8 @@ export async function POST() {
     for (const lang of languages.keys()) {
       const yamlPath = REPO_PATH + `/src/locale/${lang}.yml`;
       const yamlOutput = stringify(languages.get(lang), {
-        singleQuote: true,
         doubleQuotedAsJSON: true,
+        singleQuote: true,
       });
       await fs.writeFile(yamlPath, yamlOutput);
     }
@@ -65,7 +66,7 @@ export async function POST() {
       pullRequestUrl,
     });
   } catch (e) {
-    console.log(e);
+    logError(e);
     throw e;
   } finally {
     syncLock = false;
@@ -74,29 +75,29 @@ export async function POST() {
   async function createPR(branchName: string, nowIso: string): Promise<string> {
     const octokit = new Octokit({
       auth: GITHUB_AUTH,
-      userAgent: 'Lyra v' + version,
-      timeZone: Intl.DateTimeFormat().resolvedOptions().timeZone,
       baseUrl: 'https://api.github.com',
       log: {
         debug: () => {},
+        error: logError,
         info: () => {},
-        warn: console.warn,
-        error: console.error,
+        warn: logWarn,
       },
       request: {
         agent: undefined,
         fetch: undefined,
         timeout: 0,
       },
+      timeZone: Intl.DateTimeFormat().resolvedOptions().timeZone,
+      userAgent: 'Lyra v' + version,
     });
 
     const response = await octokit.rest.pulls.create({
+      base: MAIN_BRANCH,
+      body: 'Created by LYRA at: ' + nowIso,
+      head: branchName,
       owner: GITHUB_OWNER,
       repo: GITHUB_REPO,
       title: 'LYRA Translate PR: ' + nowIso,
-      body: 'Created by LYRA at: ' + nowIso,
-      head: branchName,
-      base: MAIN_BRANCH,
     });
 
     return response.data.html_url;
diff --git a/webapp/src/app/api/translations/[lang]/[msgId]/route.ts b/webapp/src/app/api/translations/[lang]/[msgId]/route.ts
index ea5f928b..0505d1da 100644
--- a/webapp/src/app/api/translations/[lang]/[msgId]/route.ts
+++ b/webapp/src/app/api/translations/[lang]/[msgId]/route.ts
@@ -1,5 +1,5 @@
-import { NextRequest, NextResponse } from 'next/server';
 import { getLanguage } from '@/app/api/languages';
+import { NextRequest, NextResponse } from 'next/server';
 
 export async function PUT(
   req: NextRequest,
diff --git a/webapp/src/app/api/translations/[lang]/route.ts b/webapp/src/app/api/translations/[lang]/route.ts
index 385c6a0b..c572f66e 100644
--- a/webapp/src/app/api/translations/[lang]/route.ts
+++ b/webapp/src/app/api/translations/[lang]/route.ts
@@ -1,5 +1,5 @@
-import { NextRequest, NextResponse } from 'next/server';
 import { getLanguage } from '@/app/api/languages';
+import { NextRequest, NextResponse } from 'next/server';
 
 export async function GET(
   req: NextRequest, // keep this here even if unused
@@ -22,6 +22,7 @@ function flattenObject(
   const result: Record<string, any> = {};
 
   for (const key in obj) {
+    // eslint-disable-next-line no-prototype-builtins
     if (obj.hasOwnProperty(key)) {
       const newKey = parentKey ? `${parentKey}.${key}` : key;
 
diff --git a/webapp/src/app/layout.tsx b/webapp/src/app/layout.tsx
index 9c545160..5e10eae6 100644
--- a/webapp/src/app/layout.tsx
+++ b/webapp/src/app/layout.tsx
@@ -1,5 +1,6 @@
-import type { Metadata } from 'next';
 import { Inter } from 'next/font/google';
+import type { Metadata } from 'next';
+import React from 'react';
 
 const inter = Inter({ subsets: ['latin'] });
 
diff --git a/webapp/src/components/MessageForm.tsx b/webapp/src/components/MessageForm.tsx
index 76353372..d5acb913 100644
--- a/webapp/src/components/MessageForm.tsx
+++ b/webapp/src/components/MessageForm.tsx
@@ -12,6 +12,7 @@ import { FC, useEffect, useState } from 'react';
 
 type Props = {
   message: MessageData;
+  // eslint-disable-next-line no-unused-vars
   onSave: (text: string) => void;
   translation: string;
 };
diff --git a/webapp/src/types.ts b/webapp/src/types.ts
index 0e33593f..193638ca 100644
--- a/webapp/src/types.ts
+++ b/webapp/src/types.ts
@@ -1,5 +1,6 @@
 export type LanguageMap = Map<string, Record<string, unknown>>;
 
 declare global {
+  // eslint-disable-next-line no-unused-vars
   var languages: LanguageMap;
 }
diff --git a/webapp/src/utils/util.ts b/webapp/src/utils/util.ts
index 58289683..abb6b82d 100644
--- a/webapp/src/utils/util.ts
+++ b/webapp/src/utils/util.ts
@@ -1,3 +1,23 @@
 export function envVarNotFound(varName: string): never {
   throw new Error(`${varName} variable not defined`);
 }
+
+export function logDebug(msg: string) {
+  // eslint-disable-next-line no-console
+  console.debug(msg);
+}
+
+export function logInfo(msg: string) {
+  // eslint-disable-next-line no-console
+  console.info(msg);
+}
+
+export function logError(msg: any) {
+  // eslint-disable-next-line no-console
+  console.error(msg)
+}
+
+export function logWarn(msg: string) {
+  // eslint-disable-next-line no-console
+  console.warn(msg)
+}