diff --git a/components/calendar.tsx b/components/calendar.tsx
index 85df49e..8c56d0d 100644
--- a/components/calendar.tsx
+++ b/components/calendar.tsx
@@ -107,7 +107,7 @@ export default function MyCalendar({
               return
             }
 
-            const dateAsBackendFormat = dateFormatBackend(date);
+            const dateAsBackendFormat = dateFormatBackend(date)
 
             event.preventDefault()
             event.stopPropagation()
@@ -132,7 +132,10 @@ export default function MyCalendar({
             if (isAfter(date, startDate)) {
               onChange({ endDate: dateAsBackendFormat })
             } else {
-              onChange({ startDate: dateAsBackendFormat, endDate: dateAsBackendFormat })
+              onChange({
+                startDate: dateAsBackendFormat,
+                endDate: dateAsBackendFormat,
+              })
             }
           }}
           tileClassName={tileClassName}
diff --git a/db/booking.ts b/db/booking.ts
index 5538daa..eaa60fc 100644
--- a/db/booking.ts
+++ b/db/booking.ts
@@ -1,6 +1,11 @@
 import * as mongoose from 'mongoose'
 import { v4 as uuidv4 } from 'uuid'
-import { dateFormatBackend, getDays, nowInTz, dateParseBackend } from '../helpers/date'
+import {
+  dateFormatBackend,
+  getDays,
+  nowInTz,
+  dateParseBackend,
+} from '../helpers/date'
 import { createCalendarEvent, deleteCalendarEvent } from '../lib/googlecalendar'
 
 import { Bill } from './bill'
@@ -16,9 +21,9 @@ export type Booking = {
   city: string
   bill?: Bill
   // format YYYY-MM-DD
-  startDate: string,
+  startDate: string
   // format YYYY-MM-DD
-  endDate: string,
+  endDate: string
   status?: BOOKING_STATUS
   purpose?: string
   org?: string
@@ -58,14 +63,14 @@ const BookingSchema = new mongoose.Schema<BookingDocument>(
       type: String,
       required: true,
       validator: function (value: string): boolean {
-        return !!dateParseBackend(value);
+        return !!dateParseBackend(value)
       },
     },
     endDate: {
       type: String,
       required: true,
       validator: function (value: string): boolean {
-        return !!dateParseBackend(value);
+        return !!dateParseBackend(value)
       },
     },
     days: {
@@ -160,4 +165,4 @@ const BookingModel = (mongoose.models.Booking ||
     BookingSchema
   )) as BookingModel
 
-export default BookingModel;
+export default BookingModel
diff --git a/db/index.ts b/db/index.ts
index 758df94..98acf42 100644
--- a/db/index.ts
+++ b/db/index.ts
@@ -23,12 +23,10 @@ export async function getBookedDays(
   uuidsToIngore?: string[]
 ): Promise<string[]> {
   await connect()
-  const bookedInDatabase = await BookingModel.findBookedDays(uuidsToIngore);
-  const bookedInCalendar = await calendarGetBookedDays();
+  const bookedInDatabase = await BookingModel.findBookedDays(uuidsToIngore)
+  const bookedInCalendar = await calendarGetBookedDays()
 
-  return [ ...bookedInDatabase, ...bookedInCalendar]
-     .filter(uniqueFilter)
-     .sort();
+  return [...bookedInDatabase, ...bookedInCalendar].filter(uniqueFilter).sort()
 }
 
 export async function getBookingByUUID(uuid: string): Promise<BookingDocument> {
@@ -85,11 +83,11 @@ export async function createBooking({
 
 export async function patchBooking(
   bookingUUID: string,
-  bookingData: Booking,
+  bookingData: Booking
 ): Promise<Booking> {
   await connect()
   const booking = await getBookingByUUID(bookingUUID)
-  booking.set(bookingData);
+  booking.set(bookingData)
   await booking.save()
 
   return booking.toJSON()
diff --git a/helpers/array.ts b/helpers/array.ts
index 5493526..eeca9b0 100644
--- a/helpers/array.ts
+++ b/helpers/array.ts
@@ -18,5 +18,5 @@ export function getNextBigger<T>(array: T[], pivot: T): T {
 }
 
 export function uniqueFilter(value, index, self) {
-  return self.indexOf(value) === index;
+  return self.indexOf(value) === index
 }
diff --git a/helpers/booking.ts b/helpers/booking.ts
index a2e30d1..12460be 100644
--- a/helpers/booking.ts
+++ b/helpers/booking.ts
@@ -31,7 +31,10 @@ export async function cancelBooking(uuid: string) {
   })
 }
 
-export async function patchBooking(uuid: string, bookingData: Partial<BookFormData>) {
+export async function patchBooking(
+  uuid: string,
+  bookingData: Partial<BookFormData>
+) {
   return fetch(`/api/bookings/${uuid}`, {
     method: 'PATCH',
     body: bookingData,
diff --git a/helpers/date.ts b/helpers/date.ts
index 3d9776f..30c2e5b 100644
--- a/helpers/date.ts
+++ b/helpers/date.ts
@@ -34,7 +34,7 @@ export function getDays({
     return days
   }
 
-  const inclusiveEndDate = endDateExclusive ? subDays(endDate, 1) : endDate;
+  const inclusiveEndDate = endDateExclusive ? subDays(endDate, 1) : endDate
 
   while (currentDay < inclusiveEndDate) {
     currentDay = addDays(currentDay, 1)
diff --git a/lib/googlecalendar.ts b/lib/googlecalendar.ts
index 7098f9f..f1d6f02 100644
--- a/lib/googlecalendar.ts
+++ b/lib/googlecalendar.ts
@@ -1,23 +1,23 @@
 import { google } from 'googleapis'
-import { getBaseURL } from '../helpers/url';
+import { getBaseURL } from '../helpers/url'
 import { Booking } from '../db/booking'
-import { getDays } from '../helpers/date';
+import { getDays } from '../helpers/date'
 
 const calendarId = process.env.GOOGLE_CALENDAR_ID
 let credentials: object
 
 try {
-  credentials = JSON.parse(process.env.GOOGLE_SERVICE_ACCOUNT_KEY_JSON);
+  credentials = JSON.parse(process.env.GOOGLE_SERVICE_ACCOUNT_KEY_JSON)
 } catch (error) {
-  console.error('Unable to parse process.env.GOOGLE_SERVICE_ACCOUNT_KEY_JSON - invalid JSON?');
-  throw error;
+  console.error(
+    'Unable to parse process.env.GOOGLE_SERVICE_ACCOUNT_KEY_JSON - invalid JSON?'
+  )
+  throw error
 }
 
 const auth = new google.auth.GoogleAuth({
   credentials,
-  scopes: [
-    'https://www.googleapis.com/auth/calendar',
-  ],
+  scopes: ['https://www.googleapis.com/auth/calendar'],
 })
 
 const calendar = google.calendar({
@@ -32,14 +32,18 @@ export async function getBookedDays() {
     timeZone: 'utc',
   })
 
-  return data.items
-    // ignore non all-day events
-    .filter(event => !!event.start.date)
-    .flatMap(event => getDays({
-      startDate: new Date(event.start.date),
-      endDate: new Date(event.end.date),
-      endDateExclusive: true
-    }))
+  return (
+    data.items
+      // ignore non all-day events
+      .filter((event) => !!event.start.date)
+      .flatMap((event) =>
+        getDays({
+          startDate: new Date(event.start.date),
+          endDate: new Date(event.end.date),
+          endDateExclusive: true,
+        })
+      )
+  )
 }
 
 function getSummary(booking: Partial<Booking>): string {
@@ -55,21 +59,24 @@ function getSummary(booking: Partial<Booking>): string {
 }
 
 function getDescription(booking: Booking): string {
-  const bookingUrl = `${getBaseURL()}/admin/booking/${booking.uuid}`;
+  const bookingUrl = `${getBaseURL()}/admin/booking/${booking.uuid}`
 
-  return `Managelink ${bookingUrl}`;
+  return `Managelink ${bookingUrl}`
 }
 
 export async function createCalendarEvent(booking: Booking): Promise<Booking> {
-  const response = await calendar.events.insert({
-    calendarId,
-    requestBody: {
-      summary: getSummary(booking),
-      description: getDescription(booking),
-      start: { date: booking.startDate },
-      end: { date: booking.endDate },
+  const response = await calendar.events.insert(
+    {
+      calendarId,
+      requestBody: {
+        summary: getSummary(booking),
+        description: getDescription(booking),
+        start: { date: booking.startDate },
+        end: { date: booking.endDate },
+      },
     },
-  }, {})
+    {}
+  )
 
   booking.calendarEventId = response.data.id
 
@@ -82,7 +89,7 @@ export async function deleteCalendarEvent(booking: Booking) {
     eventId: booking.calendarEventId,
     // TODO: really useful?
     sendNotifications: true,
-  });
+  })
 
   booking.calendarEventId = null
 }
diff --git a/pages/admin/index.tsx b/pages/admin/index.tsx
index 663fb05..34ace7f 100644
--- a/pages/admin/index.tsx
+++ b/pages/admin/index.tsx
@@ -9,9 +9,13 @@ export const getServerSideProps = getServerSideRecentBookings
 
 function AdminRecentBookings({ bookings }) {
   if (!bookings || !bookings.length) {
-    return <Layout>
-      <h3 className="text-lg leading-6 font-medium text-gray-900">No recent bookings 😿</h3>
-    </Layout>
+    return (
+      <Layout>
+        <h3 className="text-lg leading-6 font-medium text-gray-900">
+          No recent bookings 😿
+        </h3>
+      </Layout>
+    )
   }
 
   return (
diff --git a/pages/api/auth/[...nextauth].ts b/pages/api/auth/[...nextauth].ts
index 15b5db2..f82c71f 100644
--- a/pages/api/auth/[...nextauth].ts
+++ b/pages/api/auth/[...nextauth].ts
@@ -1,7 +1,7 @@
 import { NextApiRequest, NextApiResponse } from 'next'
 import NextAuth from 'next-auth'
 import EmailProvider from 'next-auth/providers/email'
-import GitHubProvider from "next-auth/providers/github";
+import GitHubProvider from 'next-auth/providers/github'
 
 import { MongoDBAdapter } from '@next-auth/mongodb-adapter'
 import { MONGO_URI } from '../../../db'
@@ -10,7 +10,7 @@ import { MongoClient } from 'mongodb'
 let client: MongoClient
 
 const ADMIN_EMAIL = process.env.ADMIN_EMAIL
-const GITHUB_USERS_GRANTED = ['111471'];
+const GITHUB_USERS_GRANTED = ['111471']
 
 async function getMongoClient() {
   if (!client) {
@@ -28,7 +28,7 @@ export default async function auth(req: NextApiRequest, res: NextApiResponse) {
     providers: [
       GitHubProvider({
         clientId: process.env.GITHUB_CLIENT_ID,
-        clientSecret: process.env.GITHUB_CLIENT_SECRET
+        clientSecret: process.env.GITHUB_CLIENT_SECRET,
       }),
       EmailProvider({
         server: {
@@ -48,17 +48,17 @@ export default async function auth(req: NextApiRequest, res: NextApiResponse) {
         if (account.provider === 'email') {
           if (email.verificationRequest) {
             // only allow admins by email entered
-            return account.providerAccountId === ADMIN_EMAIL;
+            return account.providerAccountId === ADMIN_EMAIL
           }
 
           // if user accesses with magic link, also only allow admin
           return account.providerAccountId === ADMIN_EMAIL
         } else if (account.provider === 'github') {
           // only one and only one user
-          return GITHUB_USERS_GRANTED.includes(account.providerAccountId);
+          return GITHUB_USERS_GRANTED.includes(account.providerAccountId)
         }
-        return false;
-      }
-    }
+        return false
+      },
+    },
   })
 }
diff --git a/pages/api/bookings/[uuid]/bill.ts b/pages/api/bookings/[uuid]/bill.ts
index be954c2..bb843fd 100644
--- a/pages/api/bookings/[uuid]/bill.ts
+++ b/pages/api/bookings/[uuid]/bill.ts
@@ -5,7 +5,7 @@ import { createBill, patchBill } from '../../../../db/index'
 export default async function billHandler(
   req: NextApiRequest,
   res: NextApiResponse
-  ): Promise<void> {
+): Promise<void> {
   const {
     method,
     query: { uuid: uuids },
diff --git a/pages/api/bookings/[uuid]/index.ts b/pages/api/bookings/[uuid]/index.ts
index b8ccde4..a39064c 100644
--- a/pages/api/bookings/[uuid]/index.ts
+++ b/pages/api/bookings/[uuid]/index.ts
@@ -27,10 +27,10 @@ export default async function userHandler(
       }
 
       try {
-        const booking = await patchBooking(uuid, req.body);
+        const booking = await patchBooking(uuid, req.body)
         res.status(200).json(booking)
       } catch (error) {
-        console.error('failed patch booking', error);
+        console.error('failed patch booking', error)
         res.status(400).end(`Failed to save booking: ${error.message}`)
       }
       break