Writing

Technical articles, insights, and lessons learned from building software systems. I write about architecture decisions, engineering practices, and the challenges of delivering reliable software at scale.

150 articles

September 15, 2026 Auto-Renaming Herdr Tabs and Workspaces The tab-smart-rename plugin names herdr tabs after the task an agent is working on. Getting it working on my machine took three small patches.

llmagentic-engineeringherdrpluginollama

DIY Omarchy Linux PhoneSeptember 14, 2026 Calls and SMS on the Omarchy OnePlus 6T SMS had to ride IMS on a network with no 2G left. The 81voltd daemon answers the modem; calls connect, and call audio does not work yet.

linuxomarchyhyprlandarchmodemhardware

DIY Omarchy Linux PhoneSeptember 13, 2026 Mobile Data on the Omarchy OnePlus 6T Three modem bugs between LTE registration and a working connection. Plus a lock screen, a launcher hint, and the day an agent broke mobile data.

linuxomarchyhyprlandarchmodemhardware

September 11, 2026 A toy Neki router to understand sharded Postgres I built a ~260-line wire-compatible router to see where the shard key saves you, then read PlanetScale's 118M QPS benchmark against it.

postgresdatabasesshardingplanetscalenekitypescript

DIY Omarchy Linux PhoneSeptember 8, 2026 Omarchy on a OnePlus 6T Booting a spare OnePlus 6T into Arch Linux ARM, Hyprland and Omarchy 4 instead of Android, then making a desktop shell work by finger.

linuxomarchyhyprlandarchandroidhardware

Agent SpendSeptember 7, 2026 Agent Session Logs Already Know What You Spent I summed a month of agent spend straight from local session logs. Per message, per subagent, exact to the cent. No metering needed.

llmtoolingagents

Agent SpendSeptember 6, 2026 How Many Companies Know Their Token Bill? AI cost tracking tools are appearing fast. Metering was never the hard part; knowing which piece of work owns the spend is.

llmtoolingagents

September 5, 2026 Three Ways to Wire Two Services on AWS A shop and a pharmacy, wired three ways: NAT gateways and IP allowlists, queues between VPCs, IAM identity instead of addresses. Same code, different security.

awsarchitecturesecuritycdkvpcsqsiameventbridgelambda

September 5, 2026 floci: Which Parts of AWS Run Locally for Real I put floci, a LocalStack replacement, through the services a two-VPC design needs. Lambda, ECS, RDS and SQS run. WAF and API Gateway AWS_IAM enforce nothing.

awsflocilocalstackcdktesting

AI Coworkers: Not Just Chatbots or AgentsSeptember 1, 2026 Four Runtimes Built the Same Memory Ladder Headlong, OpenViking and ai-coworkers all landed on layered memory. Hermes built a plugin interface instead. What each one refused to build is the interesting part.

llmagentsarchitecturetooling