diff --git a/packages/backend/.eslintrc.js b/packages/backend/.eslintrc.js
deleted file mode 100644
index a894dda5..00000000
--- a/packages/backend/.eslintrc.js
+++ /dev/null
@@ -1,10 +0,0 @@
-module.exports = {
-  root: true,
-  env: {
-    node: true,
-  },
-  extends: ['eslint:recommended', 'prettier'],
-  parserOptions: {
-    ecmaVersion: 'latest',
-  },
-};
diff --git a/packages/backend/.eslintrc.json b/packages/backend/.eslintrc.json
new file mode 100644
index 00000000..3731ac72
--- /dev/null
+++ b/packages/backend/.eslintrc.json
@@ -0,0 +1,12 @@
+{
+  "root": true,
+  "env": {
+    "node": true,
+    "es6": true
+  },
+  "extends": ["eslint:recommended", "prettier"],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  }
+}
diff --git a/packages/backend/src/apps/carbone/common/add-auth-header.js b/packages/backend/src/apps/carbone/common/add-auth-header.js
index 7bea41e4..ced8898d 100644
--- a/packages/backend/src/apps/carbone/common/add-auth-header.js
+++ b/packages/backend/src/apps/carbone/common/add-auth-header.js
@@ -1,4 +1,4 @@
-const addAuthHeader = ($) => {
+const addAuthHeader = ($, requestConfig) => {
   if ($.auth.data?.apiKey) {
     requestConfig.headers.Authorization = `Bearer ${$.auth.data.apiKey}`;
     requestConfig.headers['carbone-version'] = '4';
diff --git a/packages/backend/src/apps/google-sheets/dynamic-fields/list-sheet-headers/index.js b/packages/backend/src/apps/google-sheets/dynamic-fields/list-sheet-headers/index.js
index 9751818c..cbae65d0 100644
--- a/packages/backend/src/apps/google-sheets/dynamic-fields/list-sheet-headers/index.js
+++ b/packages/backend/src/apps/google-sheets/dynamic-fields/list-sheet-headers/index.js
@@ -14,10 +14,7 @@ export default {
 
     const {
       data: { sheets },
-    } =
-      (await $.http.get) <
-      TSheetsResponse >
-      `/v4/spreadsheets/${$.step.parameters.spreadsheetId}`;
+    } = await $.http.get(`/v4/spreadsheets/${$.step.parameters.spreadsheetId}`);
 
     const selectedSheet = sheets.find(
       (sheet) => sheet.properties.sheetId === $.step.parameters.worksheetId
@@ -33,13 +30,12 @@ export default {
       majorDimension: 'ROWS',
     };
 
-    const { data } =
-      (await $.http.get) <
-      TSheetsValueResponse >
-      (`/v4/spreadsheets/${$.step.parameters.spreadsheetId}/values/${range}`,
+    const { data } = await $.http.get(
+      `/v4/spreadsheets/${$.step.parameters.spreadsheetId}/values/${range}`,
       {
         params,
-      });
+      }
+    );
 
     if (!data.values) {
       return;
diff --git a/packages/backend/src/apps/google-sheets/triggers/new-spreadsheet-rows/new-spreadsheet-rows.js b/packages/backend/src/apps/google-sheets/triggers/new-spreadsheet-rows/new-spreadsheet-rows.js
index 54db73dd..fd4c2d6c 100644
--- a/packages/backend/src/apps/google-sheets/triggers/new-spreadsheet-rows/new-spreadsheet-rows.js
+++ b/packages/backend/src/apps/google-sheets/triggers/new-spreadsheet-rows/new-spreadsheet-rows.js
@@ -1,10 +1,7 @@
 const newSpreadsheetRows = async ($) => {
   const {
     data: { sheets },
-  } =
-    (await $.http.get) <
-    TSheetsResponse >
-    `/v4/spreadsheets/${$.step.parameters.spreadsheetId}`;
+  } = await $.http.get(`/v4/spreadsheets/${$.step.parameters.spreadsheetId}`);
 
   const selectedSheet = sheets.find(
     (sheet) => sheet.properties.sheetId === $.step.parameters.worksheetId
diff --git a/packages/backend/src/apps/notion/dynamic-data/list-parent-pages/index.js b/packages/backend/src/apps/notion/dynamic-data/list-parent-pages/index.js
index a968a0b1..9212e9b4 100644
--- a/packages/backend/src/apps/notion/dynamic-data/list-parent-pages/index.js
+++ b/packages/backend/src/apps/notion/dynamic-data/list-parent-pages/index.js
@@ -15,8 +15,7 @@ export default {
     };
 
     do {
-      const response =
-        (await $.http.post) < ResponseData > ('/v1/search', payload);
+      const response = await $.http.post('/v1/search', payload);
 
       payload.start_cursor = response.data.next_cursor;
 
diff --git a/packages/backend/src/apps/ntfy/actions/send-message/index.js b/packages/backend/src/apps/ntfy/actions/send-message/index.js
index d3079e54..a25db4ac 100644
--- a/packages/backend/src/apps/ntfy/actions/send-message/index.js
+++ b/packages/backend/src/apps/ntfy/actions/send-message/index.js
@@ -1,4 +1,3 @@
-import qs from 'qs';
 import defineAction from '../../../../helpers/define-action.js';
 
 export default defineAction({
diff --git a/packages/backend/src/apps/salesforce/dynamic-data/list-fields/index.js b/packages/backend/src/apps/salesforce/dynamic-data/list-fields/index.js
index d94e9726..c4f20dcb 100644
--- a/packages/backend/src/apps/salesforce/dynamic-data/list-fields/index.js
+++ b/packages/backend/src/apps/salesforce/dynamic-data/list-fields/index.js
@@ -7,10 +7,9 @@ export default {
 
     if (!object) return { data: [] };
 
-    const response =
-      (await $.http.get) <
-      TResponse >
-      `/services/data/v56.0/sobjects/${object}/describe`;
+    const response = await $.http.get(
+      `/services/data/v56.0/sobjects/${object}/describe`
+    );
 
     const fields = response.data.fields.map((field) => {
       return {
diff --git a/packages/backend/src/apps/salesforce/dynamic-data/list-objects/index.js b/packages/backend/src/apps/salesforce/dynamic-data/list-objects/index.js
index dfed9a29..dc670cfd 100644
--- a/packages/backend/src/apps/salesforce/dynamic-data/list-objects/index.js
+++ b/packages/backend/src/apps/salesforce/dynamic-data/list-objects/index.js
@@ -3,8 +3,7 @@ export default {
   key: 'listObjects',
 
   async run($) {
-    const response =
-      (await $.http.get) < TResponse > '/services/data/v56.0/sobjects';
+    const response = await $.http.get('/services/data/v56.0/sobjects');
 
     const objects = response.data.sobjects.map((object) => {
       return {
diff --git a/packages/backend/src/apps/self-hosted-llm/auth/is-still-verified.js b/packages/backend/src/apps/self-hosted-llm/auth/is-still-verified.js
index 0906442f..3e6c9095 100644
--- a/packages/backend/src/apps/self-hosted-llm/auth/is-still-verified.js
+++ b/packages/backend/src/apps/self-hosted-llm/auth/is-still-verified.js
@@ -1,5 +1,5 @@
 const isStillVerified = async ($) => {
-  const r = await $.http.get('/v1/models');
+  await $.http.get('/v1/models');
   return true;
 };
 
diff --git a/packages/backend/src/apps/signalwire/dynamic-data/list-incoming-phone-numbers/index.js b/packages/backend/src/apps/signalwire/dynamic-data/list-incoming-phone-numbers/index.js
index fd41d930..72fa66a2 100644
--- a/packages/backend/src/apps/signalwire/dynamic-data/list-incoming-phone-numbers/index.js
+++ b/packages/backend/src/apps/signalwire/dynamic-data/list-incoming-phone-numbers/index.js
@@ -10,7 +10,7 @@ export default {
     };
 
     do {
-      const { data } = (await $.http.get) < TResponse > requestPath;
+      const { data } = await $.http.get(requestPath);
 
       const smsCapableIncomingPhoneNumbers = data.incoming_phone_numbers
         .filter((incomingPhoneNumber) => {
diff --git a/packages/backend/src/apps/telegram-bot/actions/send-message/index.js b/packages/backend/src/apps/telegram-bot/actions/send-message/index.js
index ae7ff311..f4ec95db 100644
--- a/packages/backend/src/apps/telegram-bot/actions/send-message/index.js
+++ b/packages/backend/src/apps/telegram-bot/actions/send-message/index.js
@@ -1,4 +1,3 @@
-import qs from 'qs';
 import defineAction from '../../../../helpers/define-action.js';
 
 export default defineAction({
diff --git a/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.js b/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.js
index 8249dee8..f71806b0 100644
--- a/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.js
+++ b/packages/backend/src/apps/twilio/dynamic-data/list-incoming-phone-numbers/index.js
@@ -10,7 +10,7 @@ export default {
     let pathname = `/2010-04-01/Accounts/${$.auth.data.accountSid}/IncomingPhoneNumbers.json`;
 
     do {
-      const response = (await $.http.get) < TResponseData > pathname;
+      const response = await $.http.get(pathname);
 
       for (const incomingPhoneNumber of response.data.incoming_phone_numbers) {
         if (incomingPhoneNumber.capabilities.sms === false) {
diff --git a/packages/backend/src/apps/wordpress/dynamic-data/list-statuses/index.js b/packages/backend/src/apps/wordpress/dynamic-data/list-statuses/index.js
index 12ad39fa..f457228b 100644
--- a/packages/backend/src/apps/wordpress/dynamic-data/list-statuses/index.js
+++ b/packages/backend/src/apps/wordpress/dynamic-data/list-statuses/index.js
@@ -7,8 +7,7 @@ export default {
       data: [],
     };
 
-    const { data } =
-      (await $.http.get) < Statuses > '?rest_route=/wp/v2/statuses';
+    const { data } = await $.http.get('?rest_route=/wp/v2/statuses');
 
     if (!data) return statuses;
 
diff --git a/packages/backend/src/helpers/error-handler.js b/packages/backend/src/helpers/error-handler.js
index c875cb4d..a4a738a7 100644
--- a/packages/backend/src/helpers/error-handler.js
+++ b/packages/backend/src/helpers/error-handler.js
@@ -1,6 +1,7 @@
 import logger from './logger.js';
 
 // Do not remove `next` argument as the function signature will not fit for an error handler middleware
+// eslint-disable-next-line no-unused-vars
 const errorHandler = (err, req, res, next) => {
   if (err.message === 'Not Found') {
     res.status(404).end();