Perry-Castañeda Library Map Collection, where have you been all my life?

Google has a lot of help for web developers – for example, a tutorial on using the Chrome Developer Tools to debug JavaScript.

Use your Android phone to sign in to other devices with 2-Factor Authentication (2FA): Now generally available: Android phone’s built-in security key

The Android phone has to be running Android 7.0+, and the Chrome OS / macOS X / Windows 10 device needs to have Bluetooth and a Chrome browser.