GUI for Byzanz screen recorder. It's similar to JScreencaster, but supports video format option (GIF/FLV/WEBM), sound recording flag, can copy the recorded file to the clipboard, and doesn't depend on Java runtime.
Open the project in QTCreator, choose GCC kit, build for release.
Alternatively, build from command line:
mkdir build cd build qmake ../byzaster.pro -spec linux-g++ CONFIG+=qtquickcompiler make
If the build fails due to an old Qt version, call qmake from a newer distribution instead, e.g.:
/opt/Qt/5.12.3/gcc_64/bin/qmake ../byzaster.pro <...>
For recording to work, Byzanz needs to be installed separately, e.g. for Ubuntu
apt-get install byzanz