FluidSynth as a background service

Install FluidSynth and reboot

sudo rpm-ostree install fluidsynth vlc-plugin-fluidsynth
systemctl reboot

Download gm.sf2 from here https://musical-artifacts.com/artifacts/713 and put it somewhere e.g. /opt/soundfonts/

Edit fluidsynth configuration:

sudo vim /etc/sysconfig/fluidsynth

# Mandatory parameters (uncomment and edit)
SOUND_FONT=/opt/soundfonts/gm.sf2

# Additional optional parameters (may be useful, see 'man fluidsynth' for further info)
OTHER_OPTS='-a pipewire'

Enable fluidsynth user service and verify status:

systemctl enable --now --user fluidsynth.service
systemctl --user status fluidsynth.service