Possibility to hook up free Polish aerial map source?

[rafalpil]

Poland has a free source of excellent low altitude aerial maps would it be possible to incorporate it as one of the sources?
The portal is accessible in English, but some options are in Polish, I could help in this regards if needed.

It's available at: which is available and accessible at
https://mapy.geoportal.gov.pl/imap/Imgp_2.html?startwg=wgDownloadWCS&gui=new&gpmap=gp0&bbox=264717.62828484736,493378.1480774173,264844.6285388479,493449.2549904644&SRS=2180&active_lyr=id:geopard.PRGAD_PktAdres,mapId:msBDOT_N,lid:2&locale=en

And here's a preview: