This. croc is like a better magic-wormhole (available via python pip, apt, other package managers) I switched to croc after transferring large files over terrible wi-fi. No way to resume a failed magic-wormhole session, whereas croc does it automatically.

Came here to say this. It's as simple as:

(sending computer)

    computer-1$ croc file-i-want-to-send.txt
    Did you mean to send 'file-i-want-to-send.txt'? (Y/n) y
    Sending 'file-i-want-to-send.txt' (555 B)       
    Code is: 1234-some-diceware-passphrase
    On the other computer run

    croc 1234-some-diceware-passphrase

(receiving computer)

    computer-2$ croc 1234-some-diceware-passphrase
    Accept 'file-i-want-to-send.txt' (555 B)? (Y/n) y

    Receiving (<-127.0.0.1:44404)
    file-i-want-to-send.txt 100% || (555/555 B, 105 kB/s)

You can also just drag-and-drop a file onto the executable icon and it will pop up a GUI letting you do the same thing. Transfer is encrypted, no account needed.

I like it too. Croc is easy to install/use in almost all network environments.