Hey HN, I've been building FounderScope (https://workspace.founderscope.app/) — a strategic planning platform for early-stage founders that integrates Business Model Canvas, hypothesis management, and financial modeling into a single connected workspace. The problem I kept seeing: Founders spread their thinking across sticky notes, Notion docs, and spreadsheets that don't talk to each other. A hypothesis lives in one place, the experiment tracking in another, and the financials somewhere else entirely. The result is that critical assumptions never get systematically tested before significant time and money are spent.

What FounderScope does: Everything is connected. When you add an assumption to your BMC, it automatically appears in the Assumption Matrix ranked by criticality × uncertainty. When you run an experiment and mark it validated, the linked BMC item updates its status. When a revenue stream is defined in the canvas, it flows into the P&L model. Specifically, the platform includes:

Business Model Canvas with per-item validation status (assumption → testing → validated/invalidated) Assumption Matrix – auto-plots all assumptions on a criticality × uncertainty grid so you know what to test first Experiment Lab – Kanban-style experiment tracking linked to specific hypotheses Value Proposition Canvas with automatic fit scoring per customer segment Financial modeling – 12-month P&L, J-curve, Unit Economics (CAC, LTV, runway, burn multiple) Strategy Canvas + ERRC (Blue Ocean framework) Stage-Gate Roadmap with auto-validation against financial/experiment data Pivot Log with full version history

The core design principle: methodology-first. Every module maps to an established framework (Osterwalder's BMC, Lean Startup's Build-Measure-Learn loop, McKinsey Horizons, Stage-Gate). The goal isn't to reinvent strategic planning — it's to make these frameworks actually usable in one place without losing the connections between them. This started as a tool I wanted for myself. Curious to hear from anyone who's tried to run a structured validation process — what broke down for you? What did you resort to?