Quite frankly, this doesn't seem sustainable. There's only so much high-visibility/high-value work. When your headcount is large relative to "desirable" work, people will compete for the "desirable" work. They will lie about the 60 hours of work they did last week, and tell you that it's the culturally-normative 20 hours of work, because it makes them look like 3x engineers.
> expecting responses within 24 hours... we can compete–and win–on flexibility
Including in SRE / ops roles, where people need to be on-call?
Let's be clear about something here. You have a headcount of 25, and ostensibly nobody is full-time. It's certainly possible to avoid internal competition at that size, with the right culture. But can you really avoid adding headcount? Can you really protect your culture from the opportunists, the cutthroats, the workaholics? How large can the kibbutz grow before the workers' paradise is no longer so sunny?