Hello HN,
This is a macOS app that allows you to see all your open windows on each monitor and select the one you want.
It also lets you view the current state of things like email or chat windows, terminal processes, and more.
You can use "cmd" and the key above the tab key for alt-tab like behaviour.
You can also toggle the UI by resting a finger on the corner of your trackpad.
I also wrote some dev details here:
https://madebyenzo.com/#robata
I'm the author of AltTab (https://alt-tab-macos.netlify.app/), a popular window switcher for macOS, imitating Windows famous alt+tab shortcut. I know for a fact how hard it is to implement what you did. It looks very nice, well done!
I see you ran into the issue of not being able to detect windows from other Spaces. Apple introduced it in macOS 12.2. If you're curious, you can see the vast efforts we've deployed trying to find a workaround: https://github.com/lwouis/alt-tab-macos/issues/1324. I wish some retro-engineering genius would solve this. We haven't been lucky so far. Of course Apple could fix this all in an instant with a new API, but that's very unlikely to happen.
Thank you