You can use a small computer and remote control it somehow. Or use a Chromecast Ultra and connect to the hi-fi with a hdmi to audio (spdif, 3.5", ...) or hdmi

You can use a small computer and remote control it somehow. Or use a Chromecast Ultra and connect to the hi-fi with a hdmi to audio (spdif, 3.5", ...) or hdmi to vga+audio (and don't bother connect the vga to anything)