Transitioning out of hand feeding.

Hello, so when I rescued my gecko years ago he was super emaciated, had trouble eating on his own, plus I wanted to bond with him. I’ve been hand feeding him ever since, which is mostly fine with me, but it becomes an issue when I go out of town and have someone else care for him and I also know it’s not generally recommended.

How can I transition him to eating on his own? I give his CDG in little paper cups but I recently bought some reusable silicone ones which I’m going to start using when I run out of cups. He’s not a big eater- usually 3 days a week he eats, and he’s a healthy weight.