  Funded by the UK ExCALIBUR H\&ES exascale programme, in early 2022 a RISC-V
testbed for HPC was stood up to provide free access for scientific software
developers to experiment with RISC-V for their workloads. Here we report on
successes, challenges, and lessons learnt from this activity with a view to
better understanding the suitability of RISC-V for HPC and important areas to
focus RISC-V HPC community efforts upon.
