Top 10 Things It Takes to Build a Hardware & Software Product from Idea to MVP
Insights from a Plug In Ventures Founders Session with Greg McNeil, 30-Year Hardware & Software Technology Expert
- Start with a Validated Strategy — Not Just an Idea
Before writing a single line of code or designing a single component, you need a validated strategy. That means understanding the problem you’re solving, who you’re solving it for, and whether the market actually wants it. Skipping this step is one of the most common and costly mistakes early founders make. - Do Your Market Research Early and Thoroughly
Market sizing isn’t just a slide in your pitch deck — it’s a decision-making tool. Know your TAM, understand your customer’s pain points deeply, and validate that the problem you’re solving is painful enough that people will pay to have it fixed. The earlier you do this, the fewer expensive pivots you’ll make later. - Build a Business Model Before You Build a Product
Think through your business model thoroughly before touching the product. That includes your pricing strategy, revenue streams, cost structure, and go-to-market approach. A half-baked business model creates downstream risks and discontinuities that can sink an otherwise great product. - Understand the Difference Between Hardware and Software Development
Hardware and software are not the same beast. Software can be updated, patched, and pivoted quickly. Hardware cannot. A mistake in hardware means costly retooling, delays, and rework. If you’re building a physical product, you need to plan more carefully, test more rigorously, and budget more conservatively from the start. - Get Your Specifications Right — Before You Build Anything
One of the biggest pitfalls in hardware development is starting without a detailed specification. Ambiguity in specs leads to misaligned teams, wasted builds, and inflated costs. Document exactly what you’re building, how it should function, and what success looks like before your team writes a single line of code or places a component order. - Don’t Underestimate the Importance of Architecture and Requirements
Requirements and architecture are the foundation of everything that follows. A well-defined architecture saves you from painful and expensive rebuilds down the road. Think of it as the blueprint — you wouldn’t build a house without one, and you shouldn’t build a product without one either. - Test Early, Test Often — Especially in Regulated Industries
Testing isn’t something you do at the end — it’s something you do throughout. This is especially critical if you’re building in regulated industries like health tech, fintech, or anything requiring certification. The level of testing should match the level of risk you’re willing to assume, but cutting corners on testing always costs more in the long run. - Simplify Your MVP — Then Simplify It Again
Your MVP does not need to be your full product vision. It needs to demonstrate the core concept, validate demand, and give investors or early customers something tangible to react to. If you’re struggling to fund an MVP, it’s often a sign that the concept needs to be simplified further. Strip it down to its most essential proof point. - Know How to Talk to Investors About Your Financials
Investors are going to pressure-test your numbers. Use both top-down and bottom-up approaches when building your financial projections, compare your assumptions against similar companies, and always present a range of scenarios — conservative, base, and optimistic. This shows investors you’ve done the work and understand the risks. - Find Investors Who Get Your Space
Not all investors are created equal. If you’re building a security solution, a water therapy tech product, or anything niche, seek out investors who have relevant experience in your domain. A passionate, knowledgeable investor is worth far more than a check from someone who doesn’t understand what you’re building or why it matters.
This post was adapted from a Plug In Ventures Founders Session. To access the full replay and more founder resources, visit the Plug In Ventures membership platform.