docs: add post-installation

docs/src/SUMMARY.md

@@ -9,6 +9,7 @@
   - [Deploy the homelab](./deployment/deployment.md)
   - [DNS setup](./deployment/dns.md)
   - [External resources (optional)](./deployment/external-resources.md)
+  - [Post-installation](./deployment/post-installation.md)
 - [Troubleshooting](./troubleshooting.md)
 - [Tutorials]()
   - [Use both GitHub and Gitea](./tutorials/use-both-github-and-gitea.md)

docs/src/deployment/post-installation.md

@@ -0,0 +1,17 @@
+# Post-installation
+
+## Backup secrets
+
+Save the following files to a safe location (like a password manager):
+
+- `~/.ssh/id_ed25519`
+- `~/.ssh/id_ed25519.pub`
+- `./metal/kubeconfig.yaml`
+- `~/.terraform.d/credentials.tfrc.json`
+- `./external/terraform.tfvars`
+
+<!-- TODO - `./metal/root-password.txt` -->
+
+## Next steps
+
+TODO