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Writing about backend architecture, fintech systems, and lessons learned building software at scale.

Jun 15, 20269 min read

How I set up my own always-on AI agent with Hermes (install and hosting)

A practical deep dive into how I installed Hermes, an AI agent with tools, memory and autonomy, and how I got it running 24/7 in the cloud connected to WhatsApp. Real stack, Dockerfile, Railway and the gotchas I hit.

aiagentshermesself-hostingdockerrailway
Jun 15, 20268 min read

Information Agents: the end of reactive search (and how they're built)

Google brought information agents to Search at I/O 2026: always-on assistants that monitor topics in the background and notify you on their own. How the architecture works under the hood, and what it means for those of us building software.

aiagentssearcharchitectureragsystem-design
May 1, 202610 min read

Idempotency in Payments: How to Avoid Your API Moving Money Twice

Why idempotency is not a technical detail in fintech, and how to design a system that withstands production reality.

paymentsfintechidempotencybackendpostgresqlapi-design
Mar 23, 202611 min read

Claude Code Playbook: The Complete Guide to Using It Every Day

A practical playbook with everything you need to use Claude Code as your development co-pilot: CLAUDE.md, MCP servers, hooks, GitHub Actions, and daily workflows. Updated 2026.

claude-codeaideveloper-toolsproductivitymcpgithub-actions