Software developer & AWS consultant.
Hello. I'm Martin, a software developer and entrepreneur based in Manchester, England.
I'm a co-founder of Si Novi, where we build cloud-native applications and consult on AWS architecture. I also build tools for DynamoDB - including Dynoxide and Nubo.
Latest posts
Parity Suite 3.0.0: measuring the wrong thing
The board scored emulators on a pass rate over what they attempted, so a score could jump 8 points without the engine changing a line. 3.0.0 replaces that with two figures, letter grades, and 56 new tests.
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When a DynamoDB vector index is actually ready
AWS's docs contradict each other about what searching a backfilling vector index does, describe a state the index never enters, and name a readiness signal that arrives too early. Here's what I measured instead.
Read article → What a write to an indexed DynamoDB table costs
Adding a GSI to a DynamoDB table doubles the cost of some writes and changes nothing about others, and which is which isn't well documented. So I measured it against real DynamoDB and pinned every number.
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Dynoxide 0.12.0: PartiQL RETURNING, wasm conformance
RETURNING finally does something, the wasm build lands on the conformance board at 100% over three quarters of the suite, and PartiQL UPDATE stops creating rows it shouldn't.
Read article → You can't pin DynamoDB to one region
My DynamoDB conformance suite took one AWS region as ground truth. Then that region started accepting a value the rest of AWS rejected, and weeks later reverted it. AWS ships changes region by region, so one region was never a safe baseline.
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Dynoxide 0.11.3: closing a Windows port hijack
Issue #23 asked for a Windows socket option investigation. It found the opposite problem: dynoxide's ports could be hijacked by a same-user process. 0.11.3 closes that, and the test suite now runs on Windows for the first time.
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