Add radicale CalDAV/CardDAV server

flake.nix

@@ -176,11 +176,12 @@
       Legion = systemConfig {
         hostName = "Legion";
         systemModules = [
-          ./services/nix-serve.nix
           ./services/caddy.nix
           ./services/forgejo.nix
           ./services/grafana.nix
           ./services/minecraft.nix
+          ./services/nix-serve.nix
+          ./services/radicale.nix
           ./services/sshd.nix
           ./services/syncthing.nix
         ];

services/radicale.nix

@@ -0,0 +1,21 @@
+{...}: let
+  port = 5232;
+in {
+  services.radicale = {
+    enable = true;
+    settings = {
+      server = {
+        hosts = ["0.0.0.0:${port}"];
+      };
+      auth = {
+        type = "htpasswd";
+        htpasswd_filename = "/etc/radicale/users";
+        delay = 1;
+      };
+    };
+    # rights = {};
+  };
+  services.caddy.virtualHosts."cal.xenia.me.uk".extraConfig = ''
+    reverse_proxy http://localhost:${port}
+  '';
+}