it only relies on a third party for a handshake rather than storing files online, so there's no limit to what you can send and it's probably less likely to go away.
Do you know how secure it is compared to Magic Wormhole?
I remember a few years ago reading a comparison between two file sharing apps, and if my memory serves me they were croc and Magic Wormhole. One of them had a litany of security holes but I don't remember which of them. I googled but couldn't find info on this.
I've been trying out Nix lately and did something similar to get a croc binary. My system package manager didn't have croc and also didn't have the Go version required to compile croc, but Nix did have the latest Go.
Ran this:
nix-shell -p go --run "go install github.com/schollz/croc/v9@latest"
and got it compiled. In retrospect, I should have just used the croc package in Nix, but the simplicity of this approach is a vast improvement over the alternative of getting Go myself and cluttering up my system with random build tools for one-off compilations.
The similar (but different) tool I use is Web Wormhole (https://webwormhole.io/#). It does the same thing but through a Web UI and uses WebRTC under the hood. Its great benefit over magic Wormhole is that the target doesn't need to install anything at all. If I'm having a Teams/Zoom/Jitsi call and I want to send a large file I can just send them a link and then drag and drop.
Portal does much of the same but is usually quicker in sending files than both croc and magic wormhole, since files are effectively compressed before sending among other things [note: I'm one of the creators of Portal].
https://magic-wormhole.readthedocs.io/en/latest/welcome.html
it only relies on a third party for a handshake rather than storing files online, so there's no limit to what you can send and it's probably less likely to go away.