Anemo

First launch: macOS will stop you once

These builds are unsigned — there is no Apple Developer account behind them — so macOS blocks the first launch of the app. This is expected, it happens once, and either route below clears it for good.

Route 1 — Open Anyway (no Terminal)

1. Drag Anemo to your Applications folder, then double-click it.
2. macOS blocks it and shows a warning. This dialog has no button that opens the app — dismissing it is the expected next step, not a failure.
3. Open System Settings → Privacy & Security and use the Open Anyway control for Anemo. It appears only after the blocked launch above, so do these in order.
4. Confirm when macOS asks. Anemo opens, and later launches are normal.

Route 2 — one Terminal command

If you would rather not use System Settings, this does the same job:

xattr -dr com.apple.quarantine /Applications/Anemo.app

Then open Anemo normally.

If you want to check it worked

The app opening is the check. If you want a command, use xattr -p com.apple.quarantine /Applications/Anemo.app — after Route 2 it prints No such xattr.

Do not use spctl. It reports rejected: no usable signature both before and after a successful bypass, because the app is unsigned and always will be. That verdict is about the signature, not about whether you are allowed to open the app, and it will tell you the bypass failed when it worked.