A live stream coding session where Matti Tahvonen and Frank Delporte updated an existing Vaadin, Spring, and Pi4J demo application to use the latest library versions and Java 25. The session involved refactoring a conference demo app, adding a graphical view of temperature and humidity data from a DHT11 sensor on a CrowPi 2, and resolving a Raspberry Pi build error that was fixed after the stream ended.
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