Download Aethel
Mac ✓ Your computer
Two builds, one for each kind of Mac. Not sure which you have? Open the Apple menu and choose About This Mac: anything listing an Apple M-series chip is Apple Silicon, and anything listing an Intel processor is Intel.
Before you download: your Mac will warn you
Aethel is not signed by Apple yet, so the first time you open the installer macOS blocks it. That is expected. To get past it:
- macOS 15 or newer: click Done, open System Settings → Privacy & Security, scroll down, click Open Anyway next to the message about the installer, and confirm.
- macOS 14 or older: right-click the installer, choose Open, then Open again.
Or use the Terminal command below, which skips the warning.
Or install from Terminal
curl -fsSL https://tryaethel.com/install.sh | sh
The command picks the right build for your Mac by itself, and skips the security warning.
Windows ✓ Your computer
Windows 10 or later, 64-bit.
Before you download: Windows will warn you
Aethel is not code-signed yet, so the first time you open the installer Windows shows a blue “Windows protected your PC” screen. That is expected. Click the small More info link, then Run anyway.
Or use the PowerShell command below, which skips the warning.
Or install from PowerShell
irm https://tryaethel.com/install.ps1 | iex
This command skips the security warning.
New to Aethel? Start with the Quick Start guide. You can also read the release notes.