There are some parallels with Zig's current move toward an IO-object, and requiring it to be passed to any function that wants to do IO (so that it can call met

There are some parallels with Zig's current move toward an IO-object, and requiring it to be passed to any function that wants to do IO (so that it can call methods on that object). Admittedly, it's a more limited and less elegant implementation, but it's a small step in this direction.