Doesn't match how things are run in production these days. As a vendor, you need to target the customer's environment as closely as possible. Even if it's theoretically feasible to serve off a single machine, you should have a cloud-native setup ready to go.
In principle you could totally run this on a single bare-metal node, but most will not be doing that in practice.
In principle you could totally run this on a single bare-metal node, but most will not be doing that in practice.