chore(repo): initialize workspace

README.md

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+# dev
+
+This is my monorepo, started in 2026.
+
+## Monorepo Structure
+```
+dev/                Monorepo root
+├── .archive/       Archived projects
+├── docs/           Obsidian vault / Second brain
+├── src/            Projects
+│   └── tools/      Projects that are tools
+└── third_party/    Open source tools, libraries or otherwise
+```
+
+