Aircast Flasher

The simplest way to write Aircast Lite to an SD card. The Flasher downloads the latest image, writes your Wi-Fi and hostname so the device connects on first boot, and verifies the card — four steps, no terminal.

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Opening it on macOS

The first time you open the Flasher on a Mac, you'll probably see this:

Why it happens: macOS quarantines anything downloaded from the internet and won't open an app unless it's been notarized by Apple — a paid step where Apple scans and approves the developer's build. The Aircast Flasher is a free, open pre-release that isn't notarized yet, so macOS shows the generic “is damaged” message instead of letting it run. Apple Silicon Macs are especially strict about this.

The fix — after dragging the app into Applications, clear the quarantine flag once in Terminal, then open the app normally:

It runs silently — no output means it worked. Now open Aircast Flasher from Applications.

Right-clicking the app and choosing Open (or Open Anyway under Privacy & Security) usually won't clear the “damaged” state on Apple Silicon — the command above is the reliable path. Windows and Linux aren't affected.

What it does

• Fetches the image — pulls the latest Aircast Lite release, or write a local .img/.xz.
• Pre-configures first boot — writes your Wi-Fi SSID/password and a hostname, so the device joins your network and is reachable at <hostname>.local with no SSH.
• Writes & verifies — decompresses, writes, and checks the card so you know it's good before you boot.