CSI/OCI support matrix is the real complexity, not the hypervisor choice

sloppenheimer · x · 2026-09-24

sloppenheimer argues the hidden complexity in CSI/OCI and filesystems is the support matrix across VM products—firecracker is just one option, overlayfs is meh, and collapsing the matrix matters more than any single hypervisor. edera, cloud hypervisor, microvm.nix, qemu, and lima all have wins in unifying VM/container bits. He also notes the discussed QoS lacks preemption across LS/BE classes and endorses core scheduling.

Related event: Discussion on Agent Sandbox Infra: Memory Sharing and QoS Gaps(3 posts)→

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