This is a service you can install from my deb repo on a Raspberry Pi. It has two reasons to exist: Pi4J 4.x is published as a Java 25 artifact to use the new FFM capabilities but if you're not able to use JDK 25 yet I publish an artifact client to maven compiled with 21. Second it's just a handy service for exposing pi hardware to gRPC.
This is a service you can install from my deb repo on a Raspberry Pi. It has two reasons to exist: Pi4J 4.x is published as a Java 25 artifact to use the new FFM capabilities but if you're not able to use JDK 25 yet I publish an artifact client to maven compiled with 21. Second it's just a handy service for exposing pi hardware to gRPC.