Note: when running untrusted user code don't underestimate how much of a liability this is. It's so hard to be truly sure that there's no compromise path. Part

Note: when running untrusted user code don't underestimate how much of a liability this is. It's so hard to be truly sure that there's no compromise path. Particularly when optimized for speed like you're saying. Security vs performance is often an explicit trade off in these scenarios when it's tempting to reuse processes or volumes or VMs.