Next cloud ortophoto map

Hello,
I’m trying to create an offline network with Nextcloud at home, and I want to add a ortophoto offline map. For that I need to know wich ortophoto apps she does support… like jpg2000 , ecw , tiff , img , geopackage… I’ve already searched on google this but didn’t find an answer. It’ll be awsome to have your help. Thankyou’