Cool product. We split our test pipeline into multiple because it was taking a significant time. It would be nice to consolidate them. Regarding security, what hardening are you doing to ensure code or secrets aren't compromised?
Regarding security, just like the default GitHub Action runners, BuildJet for GitHub Actions isolates each job in its own VM, with no shared states between jobs. The virtualization layer is based on Linux KVM, VMs are NATed behind a shared IP address, and the host machine runs all disks on full disk encryption. We will put a full security concept out on our website at a later stage.