By definition, we only work on PD “classics”.
Anyway, thanks for the tip on the @media block problem. That’s easy enough to fix, and I’ve PRed it for Alex to merge later:
https://github.com/standardebooks/tools/pull/385
If there are other things that would make the RMSDK experience better without causing problems for more modern reading systems then I’m sure we’d be happy to take them. Maybe you could clarify the suggested widows / orphans fix?
I’m going to investigate ligatures in the Kobo renderer too. There are CSS flags to enable them globally, so it might be a simple fix if it has built in support.