Apple’s new San Francisco Mono typeface comes bundled in with the latest Xcode 8 beta, and it’s beautiful! If you’re impatient like me and want to use San Francisco Mono in your other apps before macOS Sierra is released, you can grab its otf files from the Xcode 8 Beta app package and install them manually:

1. Download and install the Xcode 8 beta (you’ll need an Apple Developer account)
2. Open Finder and push CMD + SHIFT + G to open the “Go to Folder dialog”, then paste this path (its prefix may differ depending on where you installed Xcode): /Applications/Xcode-beta.app/Contents/SharedFrameworks/DVTKit.framework/Versions/A/Resources/Fonts
3. Open all the font files starting with “SFMono”:
4. Choose “Install Font”:

The San Francisco Mono fonts should now be available to use throughout your entire system. Enjoy!