Install Nucleus on macOS
Requires macOS 14 or later. Nucleus uses Sparkle for automatic updates after the first install.
Step 1
Download
Get the latest Nucleus build, or pick a specific version from the release history page.
Step 2
Open the DMG
Double-click the downloaded disk image to mount it.
Step 3
Install
Drag Nucleus.app into your Applications folder.
Step 4
Launch Nucleus
Open Nucleus from Applications or Spotlight.
Step 5
Connect Google accounts
Open Account Center, add your Google OAuth Client ID, then sign in with each Gmail account you want to manage.