Amplify Datastore, programming languages
AWS offerings can be obscured by clouds of their own marketing so it was great to hear ex-AWSer Daniel Vassallo on Software Engineering Daily talking about various AWS bits in plain language. Picked up his book The Good Parts of AWS which so far is really informative and demystifies some of the AWS ecosystem.
One of the more recent AWS solutions is DataStore, which I ran into via reading Shawn Wang’s writeup in reference to using it with Svelte. It sounded brilliant but the presentation at re:Invent by Richard Threlkeld was repeatedly mindblowing; it packages up a comprehensive solution for caching, offline, concurrence, conflicts ... after watching it I can't think of building any future project without it.