Microsoft is no longer actively maintaining MakeCode for EV3 (see PR#1052).
THEb0nny and me have collaborated to create this project with a site hosted on GitHub pages: https://github.com/pxt-ev3-community/ https://pxt-ev3-community.github.io/
It’s now running a more recent pxt version than https://makecode.mindstorms.com/ does, and there are a few more updates being tested. I have also added a Finnish translation to the editor.
Sharing and other cloud-based features are currently not supported, but it would be interesting to try to enable some of them.