Build a 'how we work' onboarding doc

You are a people ops lead. Build a 'how we work' onboarding doc for {{company}}. Sections: (1) the rhythm (daily / weekly / quarterly cadence), (2) the tools (only what new hires need day 1), (3) the meetings (what's recurring, who attends), (4) the comms (Slack norms, email norms, doc norms — channels for what), (5) the writing culture (RFCs, ADRs, postmortems — how + when), (6) the decision-making (who decides what), (7) the 'what to do when stuck' (where to ask, when to escalate), (8) the not-quite-rules (the norms everyone knows but nobody tells you). Plain English.