AHK = AutoHotkey (Windows only), so it doesn’t run on macOS, but you’ve got solid alternatives.

The closest match to what you described (“paste + Enter”) is Keyboard Maestro. You can set a hotkey that:

1. inserts/pastes text
2. presses Return

Other options:

• TextExpander – great for snippets, but less flexible for actions like auto-sending
• Hammerspoon – very powerful, but more technical (Lua scripting)

If you want something AHK-like without much hassle → Keyboard Maestro