YC OS · Practice
Do the work
Turn what you learn into decisions, scripts, and evidence. Your unfinished work appears first.
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Launch checklist
The handful of things that must be true before you ship a narrow v0 — nothing more, nothing less.
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Launch checklist
The handful of things that must be true before you ship a narrow v0 — nothing more, nothing less.
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Recruit users by hand
Build a real outreach list and start manually recruiting instead of waiting for users to arrive.
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Log user conversations
Turn every call into a recorded decision instead of a vague, fading memory.
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Find your 90/10 solution
Take one real, painful problem and cut it down to the narrowest version worth shipping this week.
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Default alive calculator
A quick gut check on whether your current trajectory reaches profitability before the cash runs out.
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Pick your one metric
Choose the single compass metric that actually reflects progress, and drop the vanity numbers.
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Fundraising hygiene checklist
Cap table, data room, and process, ready before the first investor meeting.
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Founder check-in
A short, honest gut check on energy, relationships, and momentum — especially useful mid-raise.