Arthur,

>  Sorry to necrobump the thread, but is it possible to suggest people to add types to scheme-index in e.g.
>  https://srfi.schemers.org/srfi-process.html?

> Sure.  Would you send me some recommended text?

Done, see the pull request:
https://github.com/scheme-requests-for-implementation/srfi-common/pull/80

Thanks,
--
Artyom Bologov
https://aartaka.me