Does Topos support outbox?

[zh6335901]

I'm look at Topos because of message ordering is important in my project, I wonder if Topos is supported outbox pattern like Rebus

[mookid8000]

Sorry, but Topos does not have an outbox.

...but because of the client-driven consumer design (i.e. consumers keeps track of their offsets and can choose to commit their positions transactionally along with the work they're doing), some there's less scenarios where an outbox makes sense.

What do you need the outbox for?