How to turn on Chrome OS Developer Mode to get root access to your computer and add new features

The Chrome OS has a Developer Mode that gives you root access to the operating system of your Chromebook.

How to add beta channels to a Roku streaming device in place of the discontinued 'private' channels

Roku has discontinued private channels, so they can no longer be installed or used on Roku devices. In their place, Roku has introduced beta channels.
Ars Technica

Apple removes $99 dev account requirement for first iOS 17 and macOS 14 betas

Usually when Apple announces big new operating system updates at WWDC, it releases early, work-in-progress developer betas for app developers who have paid for an Apple Developer account. A few weeks ...