Insights

Arguments we would rather not repeat in every call.

First-hand engineering notes from shipping production software. Written mostly so that when a client asks why we insist on something, there is a link rather than a speech.

Notes published

Topics

TopicsDelivery Engineering How we work Performance Security Software for business

LatestHow we workDelivery28 Aug 2026

Fixed price only works if you defend the scope

Everyone likes a fixed price until the third small addition. The number holds because of a written rule, not goodwill.

4 min read

02Engineering

Never accept a client secret through a web form

An agency that stores its clients' API keys has built a single point of failure for every client at once.

22 Aug 2026 · 3 min

03How we work

We replaced our SaaS stack with one panel we wrote

Not because it was cheaper. Because a rule in a subscription is a suggestion, and a rule in your own API is a gate.

14 Aug 2026 · 5 min

04Engineering

Performance is a budget, not a phase

Sites are fast at launch and slow a year later for one reason: nothing stopped them getting slower.

4 Aug 2026 · 3 min

05Software for business

What custom software actually replaces

It is almost never a competitor's product. It is WhatsApp, a spreadsheet, and someone's memory.

26 Jul 2026 · 4 min

Taking projects for Q4 2026

Disagree with any of it?

Genuinely — tell us. Most of what we believe about running projects came from a client pushing back on something we were sure about.

Start a projecthello@valentir.in

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