opam-repository-mingw does need Cygwin for development, but the resulting binaries won't depend on it. I was able to port a CLI application with a lot of depend

opam-repository-mingw does need Cygwin for development, but the resulting binaries won't depend on it. I was able to port a CLI application with a lot of dependencies without much trouble. Alternatively, Esy supports Windows and might provide you with a smoother experience. Esy is an alternative to opam cli tool that feels more like npm and supports OCaml projects and opam packages. https://fdopen.github.io/opam-repository-mingw/ https://fdopen.github.io/opam-repository-mingw/ https://esy.sh/en/ https://esy.sh/en/ https://github.com/esy-ocaml/hello-ocaml https://github.com/esy-ocaml/hello-ocaml