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We didn't start as a company. We started as a group of people who believed that world-class software could be built from Kigali — and refused to believe otherwise until it was.
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Engineering2026-05-23
New post
Hiddit is a real-time sports court booking app. Players can see live court availability, pick a slot, and book — all in under 30 seconds. We had built the booking flow with optimistic locking: check availability, create a booking if the slot is free, return confirmation. Simple. Except under concurrent load, 'check then write' doesn't mean what you think it means.
Paccy
10 min read
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Engineering2026-03-20
The race condition that kept us up for three nights — and what we learned from it(updated)
How a PostgreSQL SELECT FOR UPDATE saved us from a double-booking disaster in Hiddit's court reservation system.
Saad
8 min read
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