Posted by xanderdin on Sep 04, 2019; 8:52pm
URL: https://forum.librecad.org/plugin-uses-incompatible-Qt-library-running-appimage-2-2-tp5717711p5717715.html

Deinstallation of software installed by means of system package management tools usually does not touch personal settings which are stored in user's home directory. LibreCAD's user settings are stored in ~/.config/LibreCAD directory. You can backup that directory before uninstall if you want.

The cool thing with AppImage is that it can use settings from different places. If you run LibreCAD AppImage as is, it will use settings from before mentioned directory. But if you create a directory with the same name as your AppImage, ending it with .config and making it withing the same directory where you AppImage is located, in this case the settings will be stored in that particular directory. That allows using different settings for each version of LibreCAD AppImage.

For example, if we have LibreCAD-2.2.0-rc1-242-gc4387f10-x86_64.AppImage located in ~/soft/ we can do:

mkdir ~/soft/LibreCAD-2.2.0-rc1-242-gc4387f10-x86_64.AppImage.config

and get settings for that particular AppImage stored in that directory. For more info please see: https://docs.appimage.org/user-guide/portable-mode.html