Before
A tool that helps solo founders track their weekly experiments so they don't lose context
After
C+A tool that helps solo founders track their weekly experiments so they don't lose context for a narrow first customer segment, packaged as a four-week V1 with one measurable pain, one acquisition channel, and a clear month-six success target.
Per-question score table
Who is this for, very specifically?
Demographic is specific but behavior signal is thin and the segment is still broad.
What pain are they paying for today?
Specific time cost and current spend, but Notion isn't really the competitor here.
Why now? What changed in the world?
Cheap LLMs is real, but Notion AI signal is borrowed, not earned.
What's the V1 you can build in 4 weeks?
This is a Google Form with a GPT call, not a defensible product.
How will you reach the first 100 users?
Channels are specific and founder-led, but volume and conversion math are unproven.
What does success look like at month 6?
Concrete numbers, but the retention bar feels light and pre-seed framing dodges revenue signal.
Homework
Three concrete next steps before you run the next session.
- 1Interview 5 people in the exact customer segment and write down the words they use for the painful workflow.
- 2Build a clickable V1 outline that solves only the highest-friction step from those interviews.
- 3Send one concise outreach message to 20 likely first users and measure replies, not likes.
What founders say about gstack
“gstack's forcing questions are sharper than most advisors I have paid for.”
@founder_a
“Used this to pressure-test our YC application. We got in.”
@yc_alum_b
“58K GitHub stars for a reason. The framework is legit.”
@indie_dev_c
“It saved me from building the wrong thing. Twice.”
@pm_dana
Your next step
Apply to YC
- 1.5% acceptance rate
- 3 to 6 months until the next batch
- One idea reviewed
- Weeks to hear back
Go Pro
- Start today, no waiting
- 10 idea evals every month
- Full results in 5 minutes
- Private sessions and history
$19 / month
Applying to YC is still worth it. Use Pro to sharpen the idea before you do.
Go Pro
$19/month for 10 Full Sessions, private results, session history, and homework follow-up emails.
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Research this idea →
5-axis market analysis in Garry's voice
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6-angle idea expansion