> One of the things modern tools left behind is how the code and UI were bound together
That seems wrong to me, unless I've misunderstood your comment. It's more like there's a saturated market full of such tools.
Microsot Power Apps, Quickbase, Mendix, Salesforce Platform all provide "no-code solutions" that let you drag and drop and customise with code. Then there are Bootstrap generators that you let you control layout. I've seen plugins that integrate React components into a WYSIWYG editor. Even PowerPoint has easy to attach custom actions for desktop presentations.
That seems wrong to me, unless I've misunderstood your comment. It's more like there's a saturated market full of such tools.
Microsot Power Apps, Quickbase, Mendix, Salesforce Platform all provide "no-code solutions" that let you drag and drop and customise with code. Then there are Bootstrap generators that you let you control layout. I've seen plugins that integrate React components into a WYSIWYG editor. Even PowerPoint has easy to attach custom actions for desktop presentations.