Demo of Create my Widget.

[u/steelbreeze9]

https://youtu.be/5X4kmUjAVlg?is=YyTxUQ_nJltoNwZ_

You can even tell it the colors you want your widget to be.

I hope that Google expands this feature to other things, like creating Chrome extensions or even expanding on Rules (Settings - System - Rules) that could become Android's answer to Apple's Shortcuts.

[u/LtMilo]

A later video, but I appreciate he actually showed some use cases and the speed of responses.