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+# Archipelago Alpine Profile
+
+Custom Alpine Linux mkimage profile for Archipelago Bitcoin Node OS.
+
+## Profile Structure
+
+- `mkimg.archipelago.sh` - Main profile definition
+- `overlay/` - Files to overlay into the image
+  - `etc/` - System configuration files
+  - `etc/systemd/system/` - Systemd service files
+  - `etc/init.d/` - OpenRC init scripts
+  - `etc/local.d/` - Local startup scripts
+
+## Customization
+
+To modify the profile:
+
+1. **Add packages**: Edit `mkimg.archipelago.sh` and add to `apks` variable
+2. **Add files**: Place files in `overlay/` directory with desired path structure
+3. **Modify kernel**: Change `kernel_flavors` or `initfs_features`
+4. **Change bootloader**: Modify `boot_addons`
+
+## Profile Variables
+
+- `apks` - List of Alpine packages to install
+- `kernel_flavors` - Kernel version (lts, edge, etc.)
+- `boot_addons` - Bootloader components
+- `initfs_features` - Initramfs features
+- `initfs_modules` - Kernel modules to include
+
+## Build Integration
+
+This profile is automatically copied to Alpine's aports repository during build and used by `mkimage.sh`.