Install Stellary for Windows x64 or macOS (Apple Silicon or Intel).
The desktop app is not Apple-notarized yet. Gatekeeper may block the first launch with an “unidentified developer” message — this is expected.
Open the DMG and drag Stellary into Applications.
Do not move the app to Trash. The warning is normal for an unsigned beta build.
Right-click Stellary in Applications → Open → Open again. Or open System Settings → Privacy & Security → Open Anyway.
Sign in with your Stellary account.
Choose the local folders Stellary can use.
Review and confirm each update before download and installation.
Windows x64 and macOS installers (Apple Silicon and Intel) are available from this page.
Folder access stays limited to your selection.
Updates are checked and confirmed from Stellary.
Pick the installer for your platform. macOS builds are unsigned during the beta.