Install gorm.app by entering the following commands in the terminal:
sudo apt update sudo apt install gorm.app
Description:
Visual Interface Builder for GNUstep
Gorm, the GNUstep Object Relationship Modeler, is a tool to build GUI interfaces for the GNUstep system. It is a clone of the NeXTStep "Interface Builder" app. It works well with ProjectCenter to create GUI applications for GNUstep. . You can create .nib files that also work on Mac OS X and vice versa.
Homepage: http://www.gnustep.org/experience/Gorm.html
Version: 1.2.23-1ubuntu4
Section: universe/gnustep