Precisely. Conduits basically do everything on demand.
For parallel processing the backpressure becomes a bit more complicated, in particular if you end with a sequential consumer. If you're just doing your parallel tasks when a sequential consumer demands it, you'll find yourself still doing one task at a time. The straightforward solution is to work ahead a bit, spawning just enough parallel work to fill a small buffer that the consumer can read from. You get backpressure this way, but may have done a little bit too much if the consumer doesn't want the rest of the data. We'll show this in the third blog post of the series.
For parallel processing the backpressure becomes a bit more complicated, in particular if you end with a sequential consumer. If you're just doing your parallel tasks when a sequential consumer demands it, you'll find yourself still doing one task at a time. The straightforward solution is to work ahead a bit, spawning just enough parallel work to fill a small buffer that the consumer can read from. You get backpressure this way, but may have done a little bit too much if the consumer doesn't want the rest of the data. We'll show this in the third blog post of the series.