Enabling Elementary OS 7 (Horus) compatibility for Ubuntu / Unity indicators on Wingpanel

[ylluminate]

This can be restored by using the still functional Lafydev/wingpanel-indicator-ayatana with the following steps:

1. Open Terminal

2. Install developmental dependencies:

   sudo apt-get install libglib2.0-dev libgranite-dev libindicator3-dev libwingpanel-dev indicator-application valac gcc meson git cmake
   

3. Get the repository:

   mkdir -p ~/dev/elementary_os
   git clone https://github.com/Lafydev/wingpanel-indicator-ayatana.git ~/dev/elementary_os/lafydev_wingpanel-indicator-ayatana
   cd ~/dev/elementary_os/lafydev_wingpanel-indicator-ayatana
   

4. Build & install the repository:

   meson build --prefix=/usr
   cd build
   ninja
   sudo ninja install
   

5. Enable Pantheon autostart (after adding folder to home config autostart folder, modify .desktop file for system to add Pantheon as final entry and then copy file to home config):

   mkdir -p ~/.config/autostart
   sudo sed -i 's/^OnlyShowIn.*/OnlyShowIn=Unity;GNOME;Pantheon;/' /etc/xdg/autostart/indicator-application.desktop 
   cp /etc/xdg/autostart/indicator-application.desktop ~/.config/autostart/
   

6. Restart / Reboot system (sudo reboot if you like)

7. Enjoy: