Cambalache Interface Designer

Cambalache () is a free and open-source tool designed for creating user interfaces with GTK. It is designed as a successor to Glade, with a focus on supporting the latest GTK 4 library while maintaining compatibility with GTK 3. Cambalache is geared toward developers working within the GNOME ecosystem. Cambalache's design emphasizes the architecture, ensuring separation between the UI components and the business logic of applications.
The workspace, where users visually edit the UI, is powered by a separate component called Merengue. This uses Broadway, a GTK backend for web rendering, to display the UI elements in real-time without mixing different GTK versions in the same process. This architectural choice enhances stability by decoupling the user interface from the core application. The separation allows Cambalache to efficiently manage multiple versions of GTK simultaneously. As a result, the rendered UI closely emulates the appearance and behavior of the actual application.
 
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