00Founder advisory · Product strategy · Development readinessFounder advisory
I'm a founder who has shipped real software. Now I help other founders turn raw ideas into documented, defensible, development-ready products — before they spend a dollar on engineering.
Products shipped or in active build
Fastest idea-to-MVP cycle
Entry to a Clarity Session
End in a build-ready spec
Most founders don't lose money on the build. They lose it on the ambiguity they handed to a developer. The vague idea becomes a half-product, the half-product becomes a rewrite, and the rewrite becomes the reason a great company never shipped.
I exist in the quiet weeks before code — translating intuition into a document a stranger could build from. I'm not a development shop, and I'm not a coach. I'm a founder who has done this, writing it down for founders who haven't.
— Lynsey
Consumer AI · Wellness · 2023 — Present
An AI-powered wellness platform built around adaptive personal practice — scoped from a 41-feature ambition down to a 14-feature MVP, shipped in 11 weeks.
Founder · Product · Strategy
Read the case study →
B2B Healthtech · 2024 — Present
A clinician portal extending the Harmoni ecosystem into clinical workflow — reviewed by practicing therapists before a single ticket was opened.
Product lead · PRD · Discovery
Read the case study →
AI · Atmospheric · 2025
Weather intelligence for storm chasers and field operators. Scoped to a single high-stakes use case so the AI integration could prove itself before scaling.
Product strategy · MVP definition
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Ambiguity is the most expensive line item in any build. Every unanswered question becomes a change order, a rewrite, or a feature nobody uses.
A PRD isn't paperwork. It's the contract between your vision and the person you're paying to build it. Skip it and you're paying twice.
The smallest version of your idea that proves the thesis is the only version worth shipping first. Everything else is opinion dressed up as scope.
A linear, six-step path. No discovery theater, no twelve-week onboarding. The output is documents your developers can read on a Monday and quote against by Friday.
A written brief. Background, ambition, constraints, the real pain.
A 45-minute working session. We name the real product, not the pitched one.
Strategy, next steps, and a clean decision: build, validate further, or pause.
Scope, feature priority, user journeys, founder reality check.
Full PRD, user stories, monetization model, engineering handoff package.
Move into development with a partner already briefed on the spec.
I'm Lynsey Whitehill — founder of Harmoni, an AI-powered platform shipped to real users. I've written the PRDs, scoped the MVPs, lived the rewrites, and sat in the developer kickoffs.
I started this practice because too many founders come to development with a feeling instead of a document. I'd rather you spend $197 with me than $97,000 with a dev shop figuring out what you meant.
Founders who complete the Development Readiness Package can move directly into engineering with Appic — a trusted development partner already briefed on the spec, scope, and stakes.
