readline VS hammerspoon

That's nice, were you aware of readline?

Do you want to build an interactive shell or a cli tool? For a custom shell I have used https://github.com/chzyer/readline before, but I did not work on it a lot.

I also wanted custom completions based on context and this readline implementation was decent for that.

On first glance, it seems like the Mac layout would be less convenient with Linux due to the alt/option key being further from the spacebar and more awkward to hit with your thumb. This makes a lot of commonly used keybindings (such as the standard readline keybindings, https://github.com/chzyer/readline/blob/master/doc/shortcut.md, commonly used in bash and other shells amongst other applications) harder to hit. Linux GUI applications use alt/option more frequently than super/command as well.

The authors keep a crib sheet here: https://github.com/chzyer/readline/blob/master/doc/shortcut.md

but that's the readline shortcuts which are the same no matter which Unix terminal you are using, on macOS, Linux, cygwin, git bash, WSL...

https://github.com/chzyer/readline/blob/master/doc/shortcut....

Another option for hacking something like this together could be HammerSpoon. I’ve spent some time with it, but haven’t tried integrating with Apple Notes, I mostly did stuff at the file system level to keep it easy.

https://www.hammerspoon.org/

For basic window tiling, I stumbled across Hammerspoon and the MiroWindowsManager spoon.

https://github.com/miromannino/miro-windows-manager

https://www.hammerspoon.org/

I use hammerspoon a lot and it seemed like scheduling SelfControl could be done using it so I created Hammer Control. Check it out!

Hammerspoon - Price: Free Desktop automation tool for macOS that allows you to write Lua scripts to control your Mac.

Assuming no one has a cut-and-dried solution that just works, would something like this be possible with say, AppleScript or another scripting tool like Hammerspoon? I've not used either of these tools before, but would be open to seeking out a scripting solution on my own if it's viable. Or am I going to run into insurmountable security restrictions?

Spark (not the email app). There are others like Hotkey and Hammerspoon.

I have tried different tools for this including Rectangle, but I've finally settled with hammerspoon. It solves the problem of window-management but you can also use it to create custom keyboard shortcuts and much more.