Configuration
This tool uses a .json file to keep track of the recent files.
By default, the $HOME/recent_houdini_files.json is created/used.
You can specify a custom location by setting the $HOUDINI_RECENT_FILES_MENU_FILE variable to you desired file.
export HOUDINI_RECENT_FILES_MENU_FILE="${HOME}/houdini/houdini-recent-files.json"