manatee: Add dagbok

Served at dagbok.ppp.pm through nginx from 127.0.0.1:8093, with its token
from agenix, a Hetzner DNS-01 certificate, a dynamic DNS record and a
state backup snapshot.

flake.nix

@@ -110,6 +110,12 @@
       # url = "git+file:///home/alex/code/todo?ref=main";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    dagbok = {
+      url = "git+ssh://gitea@git.ppp.pm:1122/alex/dagbok.git?ref=main";
+      # url = "git+file:///home/alex/code/own/dagbok?ref=main";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =