Writing

What we have learned building USSD services, written down as we hit it.

1. October 15, 2026

   Move a USSD service without changing the short code

   One bank's menu, followed through the four weeks of a move: what the rebuild found, the scenarios that refused a publish, the fortnight beside the old service, and the morning the URL changed.

2. October 14, 2026

   AgriPredict's farmer line runs on luftflow

   How a farmer service on *404# moved from an older engine to luftflow, was rehearsed beside it on real calls, and what the team reads every morning now.

3. September 20, 2026

   USSD timeouts and retries: what happens while a caller waits

   A USSD session is held open by the operator, not by you. What that means for slow APIs, dropped sessions, and the word "retry", which in USSD means two different things.