Writing · 4 posts

Engineering writing

Architecture writeups, benchmarks, and the decisions behind real production work — not "10 tips for React".

Multi-tenant SaaS in Laravel 13: tenant resolution, schema isolation, and the Livewire trap
Building Simption ERP — what I picked, what I shipped, what bit me. The decisions behind isolated MySQL per tenant, the trap Livewire serialization sets for cache-tag tenancy, and the JSON-driven module system that ended up cutting feature rollout by ~40%.
Apr 12, 20269 min readlaravel · saas · architecture · multi-tenancy
30 FPS on a CPU: OpenVINO IR, async inference, and the FP16 / FP32 question
A driver drowsiness pipeline that runs at ~30 FPS on an Intel Core i5 with no GPU. The decisions that made it possible — OpenVINO IR over raw ONNX, async inference over synchronous, FP16 over FP32 — and where each one stops paying.
Mar 8, 20268 min readopenvino · edge-ml · performance · python
An AI agent that auto-fixes bugs: CodeHeal's pipeline, the security model, and what 'parallel' means in practice
How CodeHeal — a GitHub OAuth agent that detects and patches bugs across six languages — actually does it. The 10-files-at-a-time parallel pipeline, the token-encryption story (AES-256-GCM + timing-safe comparison), and the deliberate choice never to commit to main.
Feb 14, 20268 min readai-agents · gemini · security · architecture
Per-currency greedy debt simplification: the algorithm behind Brosplit
Why Splitwise's "simplify debts" feature silently re-trades you across currencies — and how Brosplit's per-currency engine avoids it. The greedy max-creditor vs max-debtor matching, the deterministic remainder algorithm, and the creditor-approval state machine.
Jan 18, 20267 min readalgorithms · typescript · product

Multi-tenant SaaS in Laravel 13: tenant resolution, schema isolation, and the Livewire trap

30 FPS on a CPU: OpenVINO IR, async inference, and the FP16 / FP32 question

An AI agent that auto-fixes bugs: CodeHeal's pipeline, the security model, and what 'parallel' means in practice

Per-currency greedy debt simplification: the algorithm behind Brosplit