Ah well, with (neo)vim programmable in python, combined with your superterminal you have a very nice environment too. I guess indeed a little less hackable (more difficult to get into), but using more modern technologies. Well... still you could quickly have a look at Spacemacs if you like... or otherwise Spacevim although that is not yet very comparable to Spacemacs.
Anyway your calibre-debug magic now is implemented in
calibre.el. Thanks again!