I looked at this in the past and found it to work well but is (was?) missing a couple of key (to me) features: * Customizable playback speed (at least in the p

I looked at this in the past and found it to work well but is (was?) missing a couple of key (to me) features: * Customizable playback speed (at least in the past, there were no FOSS libraries for this) * Per-podcast volume controls. One podcast I listen to (Data Skeptic) needs a volume boost