Engineering journal
A monthly note on what we built and what it cost us. We have no customers to quote yet, so this is the only evidence we can honestly offer: the decisions themselves, written down while they are being made.
August 2026 · 9 min read
Politeness implemented per-feature always decays. We moved the decision into the delivery layer: a message declares a priority, the platform decides the loudest form it may ever take, and no feature can pass a value the schema does not allow.
Read the entryJuly 2026 · 12 min read
Why we sign passes instead of looking them up, how short-lived keys reach the tablet, what an attacker with a stolen device can and cannot do, and the two cases where we still fail closed.
Read the entryJune 2026 · 7 min read
The data model most vendors use makes the owner the account and the tenant a guest. Ours makes the household the unit — which meant giving up a simpler permissions tree and rewriting the handover flow twice.
Read the entryPlaceholder — three entries shown; index paginates at twelve, no newsletter capture
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