If for some games you just can find the NSZ files instead of the regular NSP. Or you just want to download a smaller file, it’s super easy to convert it. I make this post because there are not a lot of resources online for this. My research always landed to a shoddy Windows only tool. So here we go,
- Open terminal.
- Install the NSZ tool by running
sudo pip3 install nsz - On the Switch, launch emuMMC, and then from the homebrew tools, launch Lockpick. Once that’s done, you should have the prod.keys file in
[SD card]/switch/ - Shut down, and pop the SD card to computer. Copy the prod.keys file to
~/.switch/
Finished. To extract the the .nsz files just run nsz -D filename.nsz