You are going to discover how to connect on Windows and macOS in network to your Recalbox in SFTP with the Cyberduck software.
You will be able to easily access the different configuration files such as /boot/recalbox-user-config.txt.
If you are used to shell tools, this tutorial is not for you, it is for Windows and macOS users who need a graphical interface.
Cyberduck is a free file transfer program for Windows and macOS.
It supports many protocols: FTP, FTP-SSL, SFTP, WebDAV, Swift, S3, Google Cloud Storage, Windows Azure Storage, Dropbox, Google Drive, Backblaze B2 Cloud Storage, Backspace Cloud Files.

SFTP (SSH File Transfer Protocol)22rootrecalboxrootConnect button and allow unknown fingerprints.
+ button at the bottom left.


That's it, your bookmark is saved.
The recalbox-user-config.txt file is in /boot/.
The Recalbox share folder is in /recalbox/share/.
For the advanced hobbyist, you need to write the SD card, to modify the recalbox-user-config.txt file.
Send command option
mount -o remount,rw /boot
recalbox-user-config.txt file. You are advised to make a backup of the original file on this computer