diff --git a/nextcloud/readme.md b/nextcloud/readme.md
new file mode 100644
index 0000000..dd50621
--- /dev/null
+++ b/nextcloud/readme.md
@@ -0,0 +1,4 @@
+docker exec --user www-data 3092fb3bd6a5 php occ  config:system:set trusted_domains 1 --value=nextcloud.quodatum.duckdns.org
+
+https://caddy.community/t/caddy-reverse-proxy-nextcloud-collabora-vaultwarden-with-local-https/12052
+https://caddy.community/t/use-caddy-for-local-https-tls-between-front-end-reverse-proxy-and-lan-hosts/11650