BLOG · FIELD NOTES

What we learned shipping it.

Practical notes on building, shipping and rescuing software - written by the engineers doing the work, not a content team.

The demo always works. Production is where AI features go to die - here's the evaluation, cost and fallback work that keeps ours alive.

Exposed keys, open database rules, missing auth - the failure modes we find first, and how to close them.

Downtime is the visible bill. The hidden one is the roadmap you can't ship while everyone firefights.

Why we design with the build in mind - and the specific things that die between the mockup and the merge.

Hourly billing rewards slowness. Here's the estimation discipline that lets us put the number in the contract.

Retrieval, grounding and evaluation - the parts of an internal copilot that decide whether anyone keeps using it.

147 countries, 600 networks, instant provisioning - the telecom-integration lessons behind our travel eSIM platform.

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