If you're getting an error "234C02" when installing, then your cfw patches are wrong/missing.
To load Meta information from .nro automatically, load the .nro by clicking "romfs" and choose yes.
This will automatically load all the information from the .nro. If you want to use sdmc then select "sdmc" after and use as normal
You can load meta information by loading an .nro from the icon box
Some nros are not working with romfs (old tinfoil, dOPUS) use sdmc for those for now
Title ids now follow (05xxxxxxxxxx0000) format
Mac and linux may experiance bugs or weird issues due to mono
First launch may take a while to load if using mono, be paitent / ui looks less pleasing as well