Don't ask me "why". Because I can.

Of course, there are better solutions to serve static, but Bash also can do it.

Expecting you have such binaries available:

• bash (tested on GNU bash, versiya 5.1.16(1)-release (x86_64-pc-linux-gnu))
• nc (any netcat able to do nc -l -k -p {PORT})
• find (tested on find (GNU findutils) 4.9.0)
• stat (tested on stat (GNU coreutils) 9.1)
• file (tested on file-5.43)