I was initially directed here thanks to @cjremus’s tweet! We recently published our validation setup and our learnings along the way. We included some reasons for choosing certain tools and WIPs that we are working on, which we think can be useful for fellow validators to use (in terms of monitoring, cross cloud deployment, automating upgrades on sentries, etc.). You can view it here:
We also wrote a guest post few months back on Loom’s blog on setting HSM policies. This can be useful if you are considering to switch to the Yubi2HSM in the future: http://bit.ly/HSMpolicies
We would continue to write up guides and recommendations on toolings that we find useful for validating, cheers!