Igneum Devnet for Mac (Apple silicon only: M1 or later). Nothing is bought or sold; this is a test network.
1. Drag "Igneum Devnet" into Applications. It will not start from this disk image.
2. First time: in Applications, right-click "Igneum Devnet" and choose Open, then Open again. The app is unsigned.
If macOS still refuses, open System Settings > Privacy & Security, scroll down, click "Open Anyway", open the app again.
3. A Terminal window opens. It starts the node, shows "syncing, N blocks" until it has the chain (usually under a minute),
then starts the Metal miner. Every 30 s one status line: accepted blocks, MH/s, template age, node blocks and peers.
4. Your miner appears on igneum.network/live within about a minute of its first block, under the id the window prints.
5. To stop: press Ctrl+C in that window (miners stop first, then the node). If the window was closed, open "Stop Igneum".
The Mac stays awake while the window is open. Data: ~/Library/Application Support/Igneum, logs: ~/Library/Logs/Igneum.