mtheal has released a new version of the FTP Server for the Nintendo Switch:

ftpd snap! v2.3
New Supported Commands

MLSD
MLST
SIZE

Other Features

Switch support
Backlight toggle (Start button)
More compatibility with non-compliant clients
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience

download https://github.com/TuxSH/ftpd/tree/switch_pr

via https://www.nintendomax.com/viewtopic.php?f=168&t=16821