Field notes

Notes on building commerce for WhatsApp.

Lessons from the trenches: what we learned wiring up MoMo, why webhooks always fail at the worst time, and how we shipped to 100+ Ghanaian SMEs in our first quarter.

EngineeringMay 03, 20268 min read

How we built a webhook queue that survives the 1st of the month.

On the 1st, every Hubtel callback in Ghana fires within a 12-minute window. We couldn't afford to drop a single one. Here's the durable queue + leader-elected cron pattern we landed on.

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ProductApr 22, 2026

Why we put the menu builder behind WhatsApp, not a website.

Our customers run a kitchen, not a CMS. Here's how we cut menu update friction by 90%.

StoriesApr 15, 2026

Auntie Akos doubled lunch orders without hiring anyone.

How a one-person kitchen in East Legon scaled to 60+ orders a day on WhatsApp alone.

EngineeringApr 02, 2026

HMAC signatures, idempotency keys, and other things we wish Hubtel docs spelled out.

Field notes from integrating Ghana's most-used MoMo aggregator. The good, the gotchas, the workarounds.

DesignMar 28, 2026

Designing a chat bot that doesn't sound like a chat bot.

Tone, cadence, and why "Akwaaba ๐Ÿ‘‹" beats "Hello, how can I help you today?" in 9 out of 10 sessions.

ProductMar 14, 2026

What we shipped in March: refunds, multi-zone delivery, and tenant API keys.

Quick recap of new features, plus what's coming in April.

StoriesFeb 28, 2026

From Madina to Takoradi: notes from our 30-vendor early access tour.

Six weeks, three regions, dozens of conversations. What Ghanaian SMEs really need from a sales tool.