Faiz Aircond: a booking app for a one-man aircond business in Shah Alam, Malaysia Faiz fixes aircond alone. One van, no staff, 6 years in Shah Alam.

His biggest problem isn't the work. It's WhatsApp. He gets 40+ "bila free?" messages a week, and he can't reply while he's up in a ceiling. By the time he answers, half of them have booked someone else.

He also works one area a day to avoid traffic: Shah Alam on Monday and Thursday, Setia Alam on Tuesday, Klang on Wednesday, Subang on Friday and Saturday. A job booked in the wrong area on the wrong day costs him an hour on the road. And about 1 in 6 customers aren't home when he arrives.

So I built him a booking app with Lovable.

For customers

The home page shows where Faiz is today and his next free slot

Pick the service and number of units, and the price and job time are worked out (3 units of general service = RM 240, about 2h 15m)

Only the days he's already in your area show up, and only start times that finish before 6pm and skip Friday prayers

Booked in under a minute, with a code to come back to

Reschedule or cancel yourself, and tap "Yes, I'll be home" the day before

For Faiz

His day as a route: jobs, hours, revenue, who has confirmed

One tap "Navigate" and one tap "On my way" on WhatsApp, message already written

Tomorrow's reminders for anyone who hasn't confirmed

Add a day off and see exactly which jobs need moving

An impact card: bookings with no back-and-forth, hours saved, no-show rate

Under the hood

Supabase with row-level security. Only Faiz can see bookings, and a customer can only open their own booking with their number and code

The slot is checked again on the server at the moment of booking, so two people can never take the same time

The design is built around the job: a hot afternoon turning cool, 34° to 24°, and a row of Shah Alam terrace houses with compressors on the walls

Try it Customer side: Live Version Faiz's dashboard (demo, no login): Demo Version

From "bila free?" to "you're booked."