Caribbein Engineering Notes from building the estate — mechanisms, decisions, scars. https://www.caribbein.fr/engineering/ 2026-08-31T12:00:00Z Caribbeinwelcome@caribbein.fr 4,941 lines, then 69 https://www.caribbein.fr/engineering/one-driver/ 2026-08-31T12:00:00Z The file every OS talks to the database through had quietly become one OS. What the rewrite kept, what it deleted, and the CI guard that keeps it deleted. One database, nineteen worlds https://www.caribbein.fr/engineering/schema-per-os/ 2026-08-31T12:00:00Z Tenant column, database per tenant, or schema per OS — the multi-tenancy trade-off, and the migration rules that make the middle path hold. How you catalogue a sea https://www.caribbein.fr/engineering/cataloguing-a-sea/ 2026-08-31T12:00:00Z Nine thousand providers across twenty-nine islands, none of them scraped-and-dumped: source ranking, reversible passes, QC verdicts, honest placeholders. Ten guards, ten scars https://www.caribbein.fr/engineering/ten-guards/ 2026-08-31T12:00:00Z Every guard in our CI exists because something specific went wrong. The incident behind each one, and why they all run without a database, a browser, or a key. The stack, and how to check it https://www.caribbein.fr/engineering/stack/ 2026-08-31T12:00:00Z Technologies by role, not by logo: dependency budgets probed from the lockfiles, no version numbers on purpose, and a check attached to every claim. The public read API, as observed https://www.caribbein.fr/engineering/api/ 2026-08-31T12:00:00Z The read-only endpoints every browser already calls, documented honestly: no contract yet, no version, exactly what the marketplace itself reads. Decision records https://www.caribbein.fr/engineering/adr/ 2026-08-31T12:00:00Z Four architecture decisions in ADR form — context, the rejected alternatives, and what each choice costs on purpose.