docs: document homelab services, deployment, and repository review

immich/README.md

@@ -0,0 +1,29 @@
+# Immich
+
+Photo library with its own vector-enabled PostgreSQL and machine-learning service.
+
+This database is separate from the shared PostgreSQL instance. Keep the server
+and machine-learning versions aligned when upgrading.
+
+Kubernetes bind-mounts `/mnt/immich/library` from the node. That directory must
+already exist and contain the intended library; moving the pod to a different
+node does not move the files. PostgreSQL and Valkey use StatefulSet storage, and
+the model cache has its own PVC.
+
+Compose reads `UPLOAD_LOCATION` and `DB_DATA_LOCATION` from `.env`. The example
+uses the same library path as Kubernetes. Run one writer against that library;
+do not start both deployments as independent instances over the same files.
+
+Back up the library and a consistent database dump together. The model cache
+can be rebuilt; the photo database cannot.
+
+## Inspect
+
+From the repository root:
+
+```sh
+kubectl get pods,svc,pvc -n immich
+kubectl get events -n immich --sort-by=.metadata.creationTimestamp
+```
+
+See the [repository README](../README.md) for deployment selection.