I want to create a dynamic set of check boxes using Angular Material,

It should bind like on the normal checkbox, click on the link I have added to the documentation. it is not dynamically binding to the check boxes, as it does manually.

See my stackblitz sandbox here. (forgot the save, tired; feel free to focus on the problem! I may rebuild later!)

The problem seemed trivial, but I am stuck. I have been doing research, testing samples, but none of them actually solve the problem. What called my attention are so many codes that claim to solve, but when you try, they do not!