Writing

Engineering field notes

Practical write-ups on AI-assisted engineering, full-stack and backend systems, and the decisions behind shipping real products across different stacks.

June 14, 2026 · 3 min read

Background jobs that survive production

Why slow work belongs off the request path — and how to build queues and workers that retry safely, fail loudly, and never silently lose a job.

backendqueuesbackground-jobsreliabilitynestjs
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June 13, 2026 · 3 min read

Idempotent payment webhooks: never double-charge on a retry

Payment providers retry webhooks and networks duplicate them. Here's how to process Stripe events exactly once, so customers are never double-charged and your books still reconcile.

paymentsstripewebhooksidempotencyreconciliation
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June 10, 2026 · 4 min read

How I run Claude Code: skills, rules & subagents per feature

How I run Claude Code as a system: a skill, rules, and a subagent per feature, indexed by CLAUDE.md and AGENTS.md — less re-exploration, fewer wasted tokens.

claude-codeai-codingdeveloper-workflowsubagentsprompting
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June 7, 2026 · 4 min read

How to self-host n8n on a VPS (production setup)

A production n8n setup on a VPS: Docker Compose with Postgres, HTTPS behind a reverse proxy, the encryption key you can't lose, backups, and safe upgrades.

n8nself-hostingdevopsdigitaloceanautomation
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June 5, 2026 · 3 min read

RPA with UiPath: when to automate the UI instead of the API

Not every system has an API. When UiPath RPA is the right tool, how to make UI automation resilient, and when an integration beats screen-scraping.

rpauipathautomation
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June 5, 2026 · 3 min read

Offline-first by design: the architecture behind Balyria

How Balyria, a personal finance app, keeps every financial record on-device with SQLite, MMKV, and Zustand — fast, private, and fully offline.

offline-firstreact-nativearchitecturebalyria
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June 5, 2026 · 3 min read

Building an AI media pipeline with ComfyUI: from text-to-image to video

How I use ComfyUI as a node-based pipeline for text-to-image, image-to-image, and image-to-video — high-quality output is a pipeline, not one prompt.

comfyuiai-mediagenerative-aiimage-to-video
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June 4, 2026 · 3 min read

Designing n8n automations that don't break in production

Practical patterns for reliable n8n workflows — idempotency, partial-failure handling, error branches, and observability — built to survive the real world.

n8nautomationreliability
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