This is a simple, and therefore very common approach. Generally, most event systems, streams, and observables follow this rough pattern. Even promises/futures/async/await can be thought of as a one-time-only push-based reactive tree — each .then/.map/await call creates a listener to the previous step, and then when the initial promise resolves, the update is pushed through the rest of the system.
Landtagswahl in Rheinland-Pfalz: Laut vorläufigem Resultat beendet die CDU die jahrzehntelange Dominanz der SPD.
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Because I had configured retry attempts to "Unlimited." Should the connection fail? It would redial. Should paper run out? It would pause and resume. It became a digital battering ram.