Hotspot toggle tray icon
This script creates a tray icon that shows whether your wireless connection is in hotspot mode or not. When you click on it - the app toggles the hotspot config.
How does it work? Dependencies
I wrote the app, because the built in settings in KDE couldn't activate my wireless adapter as a hotspot properly (some WPA shenanigans), but create_ap could. So I wanted to have a GUI for that.
In Arch based distros create_ap comes with a systemd service unit (sorry, I haven't tested other distros). This extension just polls the state of the create_ap service every second and changes the icon respectively. On click it either starts and enables or stops and disables the create_ap service (that's why you will get two password prompts). I found no simple and safe solution to let the app work without a password prompt.
I use the Qt library (PySide2 = Qt python bindings), so you need to have python and pyside2 installed.
After you install create_ap it's preferable that you test it in the terminal. You'll probably need to edit /etc/create_ap.conf with your ethernet and wifi adapter names (terminal:"ip addr" or "ifconfig"), as well as a name (SSID) and password for the hotspot. Here's the Arch wiki for reference.
In order to start the indicator on boot you can add it as an autostart entry. In KDE there's Autostart in the settings, in GNOME - via Tweak tools. To do it yourself you can use Arronax.
If anyone wants to package the script or add features I'd be happy to collaborate.