schm-ocaml provides a scheme-like syntax.
schm3 integrates nicely with the rescript-version that provides the ocaml syntax.
schm4 integrates with one of the later ocaml 4 versions, and tries to be accessible from .c
There is a tutorial:
http://decapode314.free.fr/ocaml2/schm/dl/schm4-0.03.zip
The oo got lost in a computer crash.
So there is no oo.
As a self plug, I have a guile embedding into OCaml which you may be interested in/related in terms of providing scheme-interop with OCaml
What I would be interested would be to try lisparuga, but there was many dependencies, and I haven’t been able to go through all the process of all the dependencies installing.
PS: If you edit my message please put normal links with square and round brackets, not the framed one.