[donavanm]

Not first hand experience, but I was adjacent to a team that tried this approach. In short its playing on hard mode. Dev experience and tools, deployment chains, testing, etc are all possible but nowhere near your awesome userspace toolchains. Be prepared for lots of DIY action like building your own network or file io. The team also wasnt able to quite get down to the superfast ms start times and MB images that we were going for.

My memory is fuzzy but ISTR that the people behind seastar/osv moved on to an approach closer to what mrkurt is emphasizing with “container” composition plus firecracker for the environment.