CMake, Qt and KF5 requirements
Currently the requirements for those versions are really old:
cmake_minimum_required(VERSION 3.4 FATAL_ERROR)
set(QT_MIN_VERSION "5.9.0")
set(KF5_MIN_VERSION "5.44.0")
Also the version for ECM is from the KDE4 versioning times:
find_package(ECM 1.2.0 REQUIRED NO_MODULE)
The KDE5 versions have the 5.x.y schema.
To what degree could these versions get bumped? From apps which are not part of the release service I have seen dependencies on the latest Ubuntu LTS version. That would be CMake 3.16, Qt 5.12 and KF 5.68
Regards
Alex