The KMix package contains a KDE Frameworks-based Sound Mixer that integrates nicely with Plasma.
Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.
Download (HTTP): https://download.kde.org/stable/release-service/25.12.2/src/kmix-25.12.2.tar.xz
Download MD5 sum: 67d6f9f785accb91ffb310c026188e3e
Download size: 1.1 MB
Estimated disk space required: 24 MB
Estimated build time: 0.2 SBU (using parallelism=4)
Install KMix by running the following commands:
mkdir build &&
cd build &&
cmake -D CMAKE_INSTALL_PREFIX=$KF6_PREFIX \
-D CMAKE_BUILD_TYPE=Release \
-D BUILD_TESTING=OFF \
-W no-dev .. &&
make
This package does not come with a test suite.
Now, as the root user:
make install