update host architecture

architecture-docs/host-architecture.puml

@@ -12,7 +12,7 @@ package Management {
         Secrets
     }
     object "**Orchestrator**" as Orch {
-        NixOps
+        Terraform
     }
     object "**Identity Management**" as AAA {
         Authentication
@@ -49,12 +49,10 @@ package Virtualization {
         Application C
     }
     map "**Application options**" as App {
-        Edumeet => Matrix
+        Vaultwarden => Matrix
         NextCloud => Pixelfed
         Webmail => Peertube
-        Hedgehoc => Mastodon
-        Project planning => Owncast
-        Office => Castopod
+        Forgejo => Mastodon
     }
 }