Forward slashes are significatn

.drone.yml

@@ -25,7 +25,7 @@ steps:
         from_secret: key
       hosts:
         - box.unbl.ink
-      source: /tmp/.build/public
+      source: /tmp/.build/public/
       target: /home/user-data/www/unbl.ink/
       secrets: [ key ]
     volumes: