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Halyard
2025A queue-backed ingestion pipeline handling 40k events/sec with end-to-end tracing, backpressure, and zero-downtime deploys.
Things I've designed, built, and kept running.
A selection of backend systems, developer tools, and the occasional full-stack project. Each one taught me something about reliability, observability, or simply writing code that's kind to the next person who reads it.
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Ledgerlite
2024Double-entry accounting core with a typed API, deterministic tests, and a clean audit trail by design.
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Tracebook
2024An open-source observability dashboard that turns noisy spans into a story engineers actually read.
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Driftwood
2023A schema-migration tool with safe rollbacks and a dry-run planner that shows exactly what will change.
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Beacon
2023A feature-flag and config service with audit history, gradual rollouts, and sub-millisecond reads at the edge.
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Tidepool
2022A self-hosted job runner with fair scheduling, retries with jitter, and a tiny, legible web UI.