Ubuntu

Binary package “libsingleapplication-dev” in ubuntu noble

  1. Noble (24.04)
  2. libsingleapplication-dev

Replacement of QtSingleApplication for Qt5

 Project SingleApplication is a replacement of QtSingleApplication
 for Qt5. It helps to keep the primary instance of your application
 and kill each subsequent instances. If enabled, it can also spawn
 secondary (non-related to the primary) instances and send data to
 the primary instance from secondary instances.

Source package