Generally speaking containers replicate networking && storage layers so are definitely much slower than a vm on public cloud, not to mention they generally live

Generally speaking containers replicate networking && storage layers so are definitely much slower than a vm on public cloud, not to mention they generally live on vms. However, in this context (being on a rpi) it probably wouldn't be the case. Now, as for the firecracker discussion: Firecracker trades a faster boot time for a slower runtime as evidenced by this issue here: https://github.com/nanovms/nanos/issues/483#issuecomment-650352427 https://github.com/nanovms/nanos/issues/483#issuecomment-650... There are plans to fix this but afaict this is the case today.