There is a proposal for that[1] which introduces a `js:` pseudo-protocol for importing a build in module (or a standard library): import Temporal from "js:

There is a proposal for that[1] which introduces a `js:` pseudo-protocol for importing a build in module (or a standard library): import Temporal from "js:temporal"; 1: https://github.com/tc39/proposal-built-in-modules https://github.com/tc39/proposal-built-in-modules