diff --git a/sys/platforms/vps/srv/default.nix b/sys/platforms/vps/srv/default.nix
index 3f3510e..e56a3da 100644
--- a/sys/platforms/vps/srv/default.nix
+++ b/sys/platforms/vps/srv/default.nix
@@ -20,5 +20,6 @@ with lib; {
     ./dufs.nix
     ./isso.nix
     ./miniflux.nix
+    ./radicale.nix
   ];
 }
diff --git a/sys/platforms/vps/srv/radicale.nix b/sys/platforms/vps/srv/radicale.nix
new file mode 100644
index 0000000..1b7b5eb
--- /dev/null
+++ b/sys/platforms/vps/srv/radicale.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+with lib; {
+  services = {
+    nginx = {
+      virtualHosts."dav.posixlycorrect.com" = {
+        enableACME = true;
+        forceSSL = true;
+        extraConfig = ''
+          proxy_headers_hash_max_size 512;
+          proxy_headers_hash_bucket_size 128;
+        '';
+        locations."/" = {
+          proxyPass = "http://127.0.0.1:5232";
+        };
+      };
+    };
+
+    radicale = {
+      enable = true;
+      settings = {
+        server = {
+          hosts = [ "127.0.0.1:5232" ];
+        };
+        auth = {
+          type = "htpasswd";
+          htpasswd_filename = "/var/trust/radicale/htpasswd";
+          htpasswd_encryption = "bcrypt";
+        };
+        storage = {
+          filesystem_folder = "/var/lib/radicale/collections";
+        };
+        web.type = "internal";
+        rights.type = "authenticated";
+      };
+    };
+  };
+}