This string suggests a few things:
: Downloading NSPs for games you do not own is considered piracy. Nintendo is notoriously protective of its intellectual property and frequently issues takedown notices to sites hosting these files. SEGA-GENESIS-NINTENDO-SWITCH-ONLINE-NSP-ROMSLAB...
So this is probably a repack of the official app, extracted as an NSP. This string suggests a few things: : Downloading