Fastify development
We build the backends underneath products on Fastify — typed with TypeBox, one consistent error shape, encrypted per-tenant config, tested from the first route rather than secured later.
Fastify is the backend our own products run on, and it earns that place by being fast and disciplined at once. Its schema system is the reason: TypeBox definitions describe every request and response, validate them at the edge, and generate the types the handlers are written against — so the contract, the validation, and the types are one thing rather than three that drift.
On top of that we build the substrate every Ekarche product shares: encrypted per-tenant configuration, access scoped from the start, one error shape across every route, and rate limiting kept at the edge where it belongs. It runs under Docusift, Memoria, and Lekha today — the same patterns, not a fresh improvisation per project.
What we build with Fastify
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TypeBox schemas at the edge
Every request and response described once, validated on the way in, and turned into the types the code is written against — so a malformed payload is rejected before it reaches your logic.
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One error shape everywhere
A single, consistent error contract across every route, so clients handle failure one way and nothing leaks an internal detail it should not.
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A secure, tenant-isolated substrate
Encrypted per-tenant configuration, scoped access, and edge-level rate limiting — the posture that lets a product credibly promise it never sells your data — with coverage built up alongside the code.
Related from Ekarche
Need a backend built to last?
Tell us what the service has to do and what it has to protect. We will build it on Fastify — typed, tested, tenant-isolated, and genuinely yours to run.