Use a keypad with multiple macOS keyboard input sources

Left-Hand Pad is a macOS-oriented keypad with twelve keys and two rotary controls. If you switch between keyboard input sources while writing, a stored key assignment may not always produce the character or shortcut you expect. Test the profile in the same language workflow you use daily. A successful check under one layout does not establish that every other layout interprets the input identically.

Which assignments depend on characters?

List keys that type text, punctuation or command strings separately from those that invoke application shortcuts. A character-producing sequence may be especially sensitive to the active layout. A macro built around symbols in a pathname can fail even when ordinary letters look correct.

Test the raw output in a disposable text document. Use a short representative sample rather than a real shell command, password or private message. Compare the visible text with what the profile is intended to emit. Keep the original configuration available so the diagnostic exercise does not replace your working setup accidentally.

How can you see the active input source?

Use the system's normal input-source controls and indicators. Apple's input-source documentation for Mac explains the relevant settings. Establish a simple way to recognise the current source before testing the keypad; guessing from the last language you typed is unreliable after switching applications.

Note whether changing applications changes the source in your particular configuration. Do not assume a single global state if your setup behaves otherwise. Record the combination of application, focused field and input source for any failure so it can be reproduced.

Can application commands avoid text-layout assumptions?

Where the application supports direct command bindings, prefer them over macros that type a command name into an arbitrary field. This can reduce dependence on punctuation, but it is not a guarantee of layout independence. Check how the app represents keys and evaluates bindings under your selected sources.

For example, VS Code describes layout-related shortcut behaviour and provides troubleshooting output. Inspect that evidence when a chord appears different after switching layouts. Keep the hardware mapping and any host translation separate in your notes.

What should the final test include?

Run the small set of important shortcuts under each source you regularly use, including while editing text. Identify exceptions explicitly instead of hiding them behind a universal label. If a text macro remains unpredictable, keep that input on the regular keyboard or in an appropriate text-expansion tool. The Left-Hand Pad listing is the hardware reference; multilingual behaviour needs verification in your own typing environment.