How do I install this

@HSH then it should be really easy, just click the download on mobile link.

@sflanker what if he’s on mobile?

1. Copy the URL
2. Open the home screen of SR2
3. Press Ctrl+V (at this point SR2 will download the solar system files)
4. Create a new game (a.k.a. new sandbox)
5. Click on "Juno System" under the "Planetary Systems" section of the new game dialog
6. Make sure "Community" is enabled in the options menu of the "Planetary Systems" dialog (top right, button with three dots).
7. Select ESS

click/tap the file like you would with a craft