• Check local applications directory. $HOME/.local/share/applicatons
  • Require desktop files to be copied here.
• Get all the files that have a .desktop extension
• Read each file
• Parse each file for specific properties
• Create a menu item based on the applications category
• Write to menu file

• get location of applications directory
  • NetBSD - /usr/pkg/share/applications
  • Almost everyone else - /usr/local/share/applications/
  • Verify with XDG specification
• Verify path exists
  • Check all locations based on XDG env variables and XDG spec
  • Check local paths
• List application directory
  • get all files with .desktop extension

• Cycle through file list and read each file
• Parse out all required (needed) data
  • Type
  • Category
  • Name
  • Exec
  • Terminal (bool)

• generate structs
• organize by category
• Print meun based on fvwm spec

• Read and parse each file concurrently or in parallel
• Insert menu into .fvwmrc file

Taken from openSUSE Gnome

XDG_CONFIG_DIRS=/etc/xdg:/usr/local/etc/xdg:/usr/etc/xdg
XDG_CONFIG_DIRS=/usr/pkg/etc/xdg/
XDG_MENU_PREFIX=gnome-
XDG_SESSION_DESKTOP=default
XDG_SESSION_TYPE=wayland
XDG_CURRENT_DESKTOP=GNOME
XDG_SESSION_CLASS=user
XDG_RUNTIME_DIR=/run/user/1000
XDG_RUNTIME_DIR=/tmp/runtime-${LOGNAME}
XDG_DATA_DIRS=/home/rgeorgia/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share/:/usr/share/
XDG_DATA_DIRS=/home/rgeorgia/.local/share/applications/

Taken from ArcoLinux - fvwm3 desktop

XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1
XDG_SEAT=seat0
XDG_SESSION_DESKTOP=
XDG_SESSION_TYPE=x11
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_CLASS=user
XDG_VTNR=2
XDG_SESSION_ID=2
XDG_RUNTIME_DIR=/run/user/1000
XDG_DATA_DIRS=/home/rgeorgia/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop