I love that you can create URI scheme triggers. It makes it so trivial to automate stuff in Hammerspoon from other tools.
As far as the app, been sporting it for a while now and I really like it. Github is active as well.
I'm a big fan of menulets and scripting so this is great for me. Currently tracking sales. I use it with Bartender, so that it hides when the sales are not happening and pop up when something changes.
List local vagrant boxes with statuses: https://gist.github.com/onion2k/3462b6effd55472aa192
Show your current HN karma (needs nodejs): https://gist.github.com/onion2k/2e7fe16d1bb568271f32
I connected it to my bank in order that I could watch my monthly spending through my menu bar . Surprisingly useful way of managing money as it makes it impossible not to pay some attention.
Example: chmod +x pluginname.sh
Did you ever release yours on the app store? I'm struggling with electron packaging for the Apple app store and hoping to find a kindred soul to help get through it!
Still a cool project though.