# `/lib/bare-os` (system image)

First-party guest libraries loaded by the stock booter (not Holepunch `kernel/lib/bare/` bundles).

- **`tui.js`** — concatenated TUI / SDK IIFE. Generated by **`npm run bundle:tui`** from **`lib/tui/src/`**. Attached as **`ctx.tui`** / **`ctx.sdk`** unless **`BARE_OS_TUI=0`**.
- **`extensions/`** — trusted **`kernel.ext.d`** scripts only (see `extensions/README`).