offline installation bundle

README.md

@@ -11,3 +11,22 @@ AtlasOS is an appliance-style storage controller build by Adastra
 - Prometheus metrics
 
 > This repository contains the management plane and appliance tooling.
+
+## Quick Installation
+
+### Standard Installation (with internet)
+```bash
+sudo ./installer/install.sh
+```
+
+### Airgap Installation (offline)
+```bash
+# Step 1: Download bundle (on internet-connected system)
+sudo ./installer/bundle-downloader.sh ./atlas-bundle
+
+# Step 2: Transfer bundle to airgap system
+# Step 3: Install on airgap system
+sudo ./installer/install.sh --offline-bundle /path/to/atlas-bundle
+```
+
+See `installer/README.md` and `docs/INSTALLATION.md` for detailed instructions.