I followed the instructions https://opam.ocaml.org/doc/Install.html and ran the shell opam installer without any issues.

I strongly recommend installing opam through scoop.

scoop install opam

• opam init
• opam switch create 4.14.0

opam install dune

Install the dependencies first

• opam install yojson
• opam install ctypes
• opam install ctypes-foreign

dune exec

Windows 11

Debian Trixie

Raspberry Pi 5