WorldMapProjections
Tanja Pfeffer, a student of the Hochschule Karlsruhe, has designed a #map that changes #projection according to zoom level.
▻https://www.imm.hs-karlsruhe.de/custom/BT_Pfeffer_Webkartendienst
▻https://lists.openstreetmap.org/pipermail/talk-de/2017-July/114164.html