The first rewrite is done and merged with the master. As a result, Pure Maps runs on SFOS and Linux desktop (Qt Controls 2; 5.9 and 5.11). Should open a door for Nemo, Plasma, and others. Just will have to polish the code (desktop is sufficiently ugly here and there) and document.

For those who tried, how is @pichlo's patch?

As for plans, I'll look into packaging Pure Maps and its dependencies for desktop.