Accessibility - What's the First Step?

A common question might be, let's say that you're working on a project and you know the accessibility is not what it should be because you just haven't put any thought into it. What's the sort of like, best way to sort of get your foot in the door and make some progress? I think probably creating a component library that is accessible because you can apply it in many different places. But then when working on a specific page, you should make it accessible following the user flow, navigation flow. If you have an accessible component in the middle of the page and you can't get to it,. So it doesn't matter. Oh, we covered a lot of ground. Anything