It's an SSH client for the 3DS that actually works
Sorry S3SH but you don't work no more :(
also it has a cute bird named Jimmy
To use this on your 3DS, you need the homebrew launcher. If you don't have the homebrew launcher, follow the instructions at https://3ds.hacks.guide/
After that, download the 3dsx file from the latest version in the Releases page and copy it to your 3DS' sd card in the "3ds" folder.
since this was built in mbedtls, use RSA keys. Formats like edwhateveritcalled won't work.
I am still unsure ifkey authentication works at all... please, try it and tell me how it goes.
You need devkitpro and libctru. You also need to install 3ds-mbedtls with (dkp-)pacman.
Then, cross-compile libssh2 with 3ds-mbedtls as a crypto backend. to do that, source 3dsvars.sh, then run ./configure, disabing binaries and specifying the respective prefixes.