What Are Some Good Entry Points for Accessibility?

So if someone is going to now start making an effort in their ap, or maybe they're starting a new apfrom scratch, and they want to make sure that it's fully accessible, what would be some places to start? Like, e what would you say are good entry points into the kind of accessibility system? So one of the places i love to encourage people to go towards. Large ext is one of the most use features as far as an accessibility feature goes. Something that will probably work better with voice over will then probably lead to a moretuitive vew which means you will have better cognitive accessibility as well.