I Switched Back to Obsidian (because of AI)

A developer explains switching back from Notion to Obsidian primarily because local markdown files integrate seamlessly with terminal-based AI agents and custom workflows, without requiring vendor lock-in or cloud subscriptions. The post covers a custom PI agent Obsidian plugin (100% vibe-coded), using skills/prompts as reusable instruction packages for agents, querying markdown frontmatter with MDBase query, and managing homelab documentation (services, infrastructure, IPAM) through AI agents that can read, write, and act on plain markdown files. The workflow allows using any LLM — local or cloud — while keeping full data control.