feat(calibre-server): install and add to homepage

modules/nixos/features/calibre-server.nix

@@ -0,0 +1,23 @@
+let
+  port = 5011;
+  certloc = "/var/lib/acme/fi33.buzz";
+in
+{
+  services = {
+    calibre-server = {
+      enable = true;
+      extraFlags = [ "--trusted-ips=127.0.0.1" ];
+      group = "srv";
+      host = "127.0.0.1";
+      inherit port;
+      libraries = [ "/media/media/books" ];
+    };
+
+    caddy.virtualHosts."calibre.fi33.buzz".extraConfig = ''
+      reverse_proxy localhost:${toString port}
+      tls ${certloc}/cert.pem ${certloc}/key.pem {
+        protocols tls1.3
+      }
+    '';
+  };
+}