Show HN: Language Model Builder (an app to learn about and build models)

this is dope.

Some feedback:

- while I am going through the chapters i keep trying to highlight certain sentences so i could bookmark them for later, itd also be great to do cmd+f to search keywords

- in chapter 1, the "under the hood" link crashes the app

the datavis here and type hinting (even if it's just default swiftmath) is really nice.