There are 2 means of composing streams, you can zip them or concatenate them.
Only of those makes sense in your case.
You can filter the resulting stream into another Stream.
Please take a look at
Stream.concat/2: Stream — Elixir v1.20.2Stream.zip/2: Stream — Elixir v1.20.2Stream.filter/2: Stream — Elixir v1.20.2
