Topics

The archive spans more than twenty years, so these seven hubs are the clearest way into the subjects I return to most often. The older, fine-grained tag archive remains available so existing links keep working.

• Health data — wearables, recovery, personal analytics, and data ownership.
• iOS — Swift, iPhone apps, and lessons from shipping mobile products.
• DePIN — decentralized infrastructure, Helium, and network coordination.
• Storage — backups, NAS builds, cloud storage, and permanent data.
• AI — agents, MCP, automation, robotics, and knowledge systems.
• Hardware — Arduino, electronics, PCBs, sensors, and physical builds.
• Travel — location tooling, residency day counting, and life across borders.