> Thanks, that makes sense. But if we make working-directory and umask a > user-level parameter, should we need > a means to access OS-level information as well? After all, it's what > POSIX API is for? We could add a `os-working-dirctory` by analogy to the `os-command-line` that is tentatively in SRFI 193. I would prefer `current-directory` instead of `working-directory` since the former is already used by Gambit (and Kawa has `curren-path`). Scheme also has `current-input-port` and `current-time` already, etc.