Baloo
File indexing.
Baloo is the file indexing and file search framework for KDE Plasma. It focuses on speed and a very small memory footprint. It maintains an index of your files and optionally their contents which you can search.
Using the Module
Using a Qt module's C++ API requires linking against the module library, either directly or through other dependencies. Several build tools have dedicated support for this, including CMake and qmake.
Building with CMake
Use the find_package() command to locate the needed module component in the Qt6 package:
find_package(Qt6 REQUIRED COMPONENTS KF6)
target_link_libraries(mytarget PRIVATE Qt6::KF6)
For more details, see the Build with CMake overview.