You just send the file over. Here's the python script I threw together:
import socket
HOST = '192.168.200.31' # I changed this to your IP
PORT = 9000
FILENAME = "n.3dsx" # Path to the file I want to send.
# My file is "n.3dsx" and it's in the...
ftpony is trash in my experience: always freezing. Somebody added a network loading function to the latest version of the homebrew launcher. Build from that and at the homebrew menu press Y. Then send the 3dsx file you want to launch over a socket. It works for me.
There are sprite drawing...
I had the exact same thing happen yesterday. I was fucking around on 3dscraft, exited to the homebrew menu, and the menu's framerate was noticeably slower. Restarting fixed the problem for me.