Compilation from source fails: -- Configuring done CMake Error at src/CMakeLists.txt:54 (add_executable): Target "palapeli" links to target "Qt5::Concurrent" but the target was not found. Perhaps a find_package() call is missing for an IMPORTED target, or an ALIAS target is missing? Dropping the Qt5::Concurrent from src/CMakeLists.txt makes the compilation error go away.
A possibly relevant merge request was started @ https://invent.kde.org/games/palapeli/-/merge_requests/6