To expand on my comment: Google bought .dev and started selling domains. In truth, developers probably only noticed because Google pre-loaded their .dev TLD into HSTS, which meant that any domain ending in .dev, even if it's a local one or one you own, must communicate over HTTPS if you want a browser to interact with it.

As a result, even if you bought steves-laptop.dev for yourself, you still wouldn't be able to run an HTTP dev environment on it, you'd need to set up HTTPS. I think that was probably a good move by Google, because otherwise it could've taken weeks for most devs to notice.