improve all the things

README.md

@@ -1,5 +1,11 @@
 # Nix based CCCB infra
 
+## Folder structure
+
+- `./services` holds generic service configuration that is shared between hosts
+- `./hosts` holds host specific configuration
+- `./secrets` holds age encrypted secrets using [agenix](https://github.com/ryantm/agenix)
+
 ## Admin handbook
 
 ### Update a container
@@ -7,7 +13,7 @@
 ```shell
 ssh <container>
 cd /etc/nixos
-nix run .#apps.nixos-diff   # Show what changes would be applied
+nix run .#apps.nixos-diff   # git pull + build + diff wth running config
 nixos-rebuild switch        # Apply changes
 ```
 
@@ -15,12 +21,13 @@ nixos-rebuild switch        # Apply changes
 
 Production:
 
-- [Matrix](./README.matrix.md)
+- [Matrix (matrix.berlin.ccc.de)](./README.matrix.md)
 
 Testing:
 
-- [Hedgedoc](./README.hedgedoc.md)
-- [Postgres](./README.postgres.md)
+- [Hedgedoc (md.berlin.ccc.de)](./README.hedgedoc.md)
+- [Postgres (sql.berlin.ccc.de)](./README.postgres.md)
+- [Grafana/Prometheus (monitoring.berlin.ccc.de)](./README.monitoring.md)
 
 ---