Engineering blog

What we learnbuilding software here

Practical notes for founders and engineers, from real problems in East African products. Every post works offline once you have visited the site.

Fintech

What to get right before you integrate mobile money

Mobile money is not a card payment with a different logo. Here is how to design for pending states, duplicate callbacks and reconciliation.

4 November 2026, 6 min read

Performance

Build for the network your users actually have

Practical ways to make a web product fast and dependable on mobile data, on low-cost phones, and with no connection at all.

4 November 2026, 5 min read

Mobile

Flutter or React Native? How we decide for a client

There is no universal winner. These are the questions we ask to choose a mobile stack for a real project and a real team.

4 November 2026, 4 min read