https://github.com/nwtgck/go-piping-server/releases/expanded...

There is also a Typescript version.

Unlike MagicWormhole, this does not require Python libraries. Any HTTP client will do, whether graphical browser, text-only browser, curl, anything that can make HTTP requests. Javascript is optional.

There is an example server run by the author for testing but unlike MagicWormhole it is not a default; the address is not found anywhere in the source code.

https://ppng.io/noscript

Magic Wormhole, or PAKE in general, might be well-suited for use in the process of transferring files between two or more parties, but here the question was about transferring files between two computers operated by the same party.