Borealis is a new Kodi Build for Leia 18 from Ukodi1 Repository. This build uses Aeon Nox Silvo skin and it has size of 186 MB. It is also compatible on any Kodi devices including Android Tv fields, Fire TV FireStick and Windows PC.
It has sections for Movies, Tv shows, Kids, documentary, music, LiveTV, sports, Favourites and Extras.
How to Install 18 RC1 Borealis Build
Step 1) From main menu go to the Gear icon (top-left corner) or Settings
Step 2) go to File Manager
Step 3) go to Add Source
Step 4) go to None
Step 5) Enter this website: http://uk1.site/Repo/
Step 6) Name it ukodi1
Step 7) Make sure all the fields are filled and hit OK
Step 8) Get back to main menu and go to add-ons
Step 9) go to the Box icon from the top left
Step 10) go to Install from zip file
Step 11) We’ll get a new window, here go to: ukodi1
Step 12) go to repository.uk188.8.131.52.zip
Step 13) Wait for the notification in the top-right corner to popup, Uk1 Repository Installed
Step 14) go to Install from Repository
Step 15) go to Uk1 Repository
Step 16) go to Program Add-ons
Step 17) go to Ukodi1 Wizard
Step 18) go to Install
Step 19)Wait for the notification in the top-right corner to popup, Ukodi1 Wizard Installed
Step 20) Wait for the Top-right notification: a information message go to Dismiss
Step 21) go to Continue
Step 22) go to Build Menu
Step 23) go to Borealis
Step 24) go to Fresh Install or Standard Install (Fresh Install is usually bests)
Step 25) go to Yes
Step 26) It will download and install
Step 27) go to OK to force Close Kodi
Step 28) After it installs restart Kodi and it should come up. Be sure to give it time to build menus and update add-ons.
How to change the Skin back to Default Estuary
If this Build does not work for you here is how to change the Skin back to default Estuary and remove it.
Step 1) From main menu go to the Gear icon (top-left corner) or System
Step 2) go to Interface Settings
Step 3) go to Skin
Step 4) go to Estuary
Step 5) go to Yes
Read Here for How To Remove a Build From Kodi Using the Fresh Start Plugin.