Coming from AutoHotkey

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How concepts map

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Side by side

; AutoHotkey v2
CapsLock::Escape

F1::Send("Hello{Enter}")

--[[
  rebind: min_sdk=3.0.0
  rebind: name=Basics
--]]
Bind.Remap("CapsLock", "Escape")

-- HID.Type submits the string in one call and needs no coroutine. HID.Press
-- sleeps while it holds the key, so it does. A plain Bind callback runs
-- synchronously, so wrap it with Async().
-- (HID.Type handles "\n" inside the string; pressing Enter explicitly is the alternative.)
Bind(
  "F1",
  Async(function()
    HID.Type("Hello")
    HID.Press("Enter")
  end)
)

; AutoHotkey v2
#HotIf WinActive("ahk_exe chrome.exe") || WinActive("ahk_exe firefox.exe")
F2::Send("^t")  ; new tab
#HotIf

--[[
  rebind: min_sdk=3.4.1
  rebind: name=Browser Helper
  rebind: process_regex="^(chrome|firefox)\.exe$"
--]]
Bind(
  "F2",
  Async(function()
    HID.Press("LCtrl+T") -- new tab
  end)
)

​

What’s different

• A required header. Every script must declare min_sdk in its modeline.
• Some calls yield. HID.Press holds the key with a Sleep, HID.Typewriter sleeps between keystrokes, and Net.* requests block, so those must run inside a Run() / Async() coroutine, not directly in a plain Bind/OnDown callback. HID.Down, HID.Up, and HID.Combo do not sleep. HID.Type needs no coroutine, but its timing and character coverage depend on the active transport.
• Cross-platform. AutoHotkey is Windows-only.
• Hardware output. In hardware mode your HID.* calls leave the Rebind Link as standard USB HID, not a software SendInput. The same script runs in software mode first; see How it works.
• A typed language. Luau brings types, coroutines, and a full standard library. Sequences and delays use Run/Sleep instead of SetTimer/Loop.
• More reach. See Remote control.