Are there any javascript resources materials besides the api doc. please post below, even youtube videos.

There some resources on our tutorials page to help you build widgets - Introduction to Widgets, building a game UI | Crayta Developer Area - and a video tutorial on UI here -
You might be best joining our Discord community ( for questions like this, as they’ll likely be seen and answered quicker there :slight_smile:

Where is the package in Andy was referring to in that video?

Any packages Andy mentions in his videos should be discoverable through the community tab in-game. If one isn’t, could you ping him (I give you permission to ping in this case :wink: ) to let him know the package mentioned, and link the video + timestamp where he mentioned it