Add radicale server and khal/pimsync client

server-modules/radicale.nix

@@ -0,0 +1,25 @@
+{
+  services.radicale = {
+    enable = true;
+    settings = {
+      server = {
+        hosts = [ "127.0.0.1:5232" ];
+      };
+      auth = {
+        type = "htpasswd";
+        htpasswd_filename = "/var/lib/radicale/users";
+        htpasswd_encryption = "bcrypt";
+      };
+      storage = {
+        filesystem_folder = "/var/lib/radicale/collections";
+      };
+    };
+  };
+
+  services.caddy.virtualHosts."radicale.jelles.net".extraConfig = ''
+    reverse_proxy :5232 {
+       header_up X-Script-Name /
+       header_up X-Forwarded-For {remote}
+       header_up X-Remote-User {http.auth.user.id}
+    }'';
+}