New to the KDE camp is the Simon 0.4.80 alpha release, which is working towards the Simon 0.5.0 milestone. This revived speech recognition program has MPRIS support, has been ported to macOS, and there have been many bug fixes. MPRIS is short for the Media Player Remote Interfacing Specification and is the D-Bus standard API for controlling media players. An AppImage version of Simon is also in-progress.
More details on this development update to KDE Simon can be found at blogs.kde.org.