The main thing that makes end-to-end type safety difficult is simple: boundaries. The secret to fully typed web apps is typing the boundaries.

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The secret to fully typed web apps is typing the boundaries. There are plenty of examples of boundaries you’ll encounter on the web. There’s a handy utility I use in almost all my projects to make this slightly nicer on the eyes. It's just a tricky problem because TypeScript doesn’t know your conventions or config.

Fully Typed Web Apps

Helping TypeScript with Conventions/Config

<p>I really like the design of this new epicweb.dev site!</p>
