liblcm-dev 1.3.1+repack1-2.3 (riscv64 binary) in ubuntu focal

 LCM is a set of libraries and tools for message passing and data marshalling,
 targeted at real-time systems where high-bandwidth and low latency are
 critical. It provides a publish/subscribe message passing model and automatic
 marshalling/unmarshalling code generation with bindings for applications in a
 variety of programming languages.
 .
 This package provides the runtime libraries.