{"slug": "i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building", "title": "I Built a Go App That Scores Business Ideas Before You Waste Months Building Them", "summary": "A developer built Market Verdict, a Go-based application that analyzes business ideas and returns a structured, practical assessment before founders invest months building the wrong product. The tool scores ideas by combining multiple signals—including market size, competition, and feasibility—and provides a repeatable report format with clear recommendations rather than generic AI output. The backend, written in Go to leverage goroutines for background processing, has generated nearly 50,000 unique URLs for SEO and maintains over 90% unit test coverage alongside close to 300 Playwright tests.", "body_md": "Developers are very good at building.\n\nThe problem is that we often build before we know whether the idea is worth building.\n\nI built [Market Verdict](https://marketverdict.app/?utm_source=devto&utm_medium=article&utm_campaign=build_in_public_2026) because I needed it myself.\n\nI could not get the kind of job I wanted, so I started looking seriously at a career pivot. But even as a veteran coder, I had a hard time figuring out what was realistic.\n\nShould I build a SaaS?\n\nShould I create a product?\n\nShould I start a service business?\n\nShould I focus on AI, local businesses, SEO, automation, or something else?\n\nI did not need generic motivation.\n\nI needed something that could look at an idea and help me judge whether it had a realistic path forward.\n\nThat is how Market Verdict was born.\n\nI wanted a tool that could take a business idea and return a structured, practical analysis before I spent months building the wrong thing.\n\nMarket Verdict analyzes a business idea and returns:\n\nThe goal is not to magically predict the future.\n\nThe goal is to reduce bad guesses.\n\nMost business ideas fail because the founder starts with enthusiasm but not enough evidence. Market Verdict is meant to slow that process down just enough to ask better questions before committing serious time and money.\n\nThe backend is written in Go.\n\nI chose Go because I wanted:\n\nAnother major reason was goroutines.\n\nA lot of the system depends on background work. Goroutines are a natural fit for that.\n\nI use them for background processes, automation, long-tail SEO workflows, and other jobs that need to run without blocking the main user experience.\n\nFor example, I have built systems around:\n\nAt this point, I have generated nearly **50,000 URLs with unique content** as part of the broader Market Verdict SEO system.\n\nThat kind of background workload is one of the reasons Go fits the project well.\n\nThe app uses a traditional web architecture instead of a heavy frontend framework. The frontend is mostly server-rendered HTML with HTMX and vanilla JavaScript where needed.\n\nThat keeps the product fast, simple, and easier to maintain.\n\nThe current stack includes:\n\nI wanted the app to feel lightweight but still behave like a real SaaS product.\n\nThat meant adding the less glamorous parts too:\n\nOne thing I did not want was a fragile demo.\n\nMarket Verdict has more than **90% unit test coverage** and close to **300 Playwright tests**.\n\nThe Playwright tests cover the actual user flows, including:\n\nFor a SaaS product, especially one with payments and authentication, the boring parts matter.\n\nIt is not enough for the main feature to work once on your machine.\n\nThe full user flow has to keep working after changes.\n\nOne of the hardest parts was deciding how to score an idea.\n\nA business idea is not like a math problem where there is one correct answer.\n\nSo the score has to be useful without pretending to be absolute truth.\n\nThe approach I took was to combine multiple signals:\n\nThe score is useful only when paired with the explanation.\n\nA number by itself is not enough.\n\nA good analysis should tell the user:\n\n“This might work, but here are the weak spots.”\n\nor:\n\n“This idea is too broad. Narrow the audience and test a smaller version first.”\n\nThat is the real value.\n\nA user could technically ask an AI:\n\n“Is my business idea good?”\n\nBut the answer will usually be too broad unless the user knows exactly what to ask.\n\nMarket Verdict is designed to produce a structured answer every time.\n\nInstead of an open-ended chat, the app gives users a repeatable report format:\n\nThat makes it more useful for comparing multiple ideas.\n\nIt also helps non-technical founders who do not want to engineer prompts.\n\nA few lessons stood out.\n\nFirst, people do not just want “AI output.”\n\nThey want decisions.\n\nA wall of text is less useful than a clear recommendation, a score, and next steps.\n\nSecond, business validation needs to be specific.\n\n“Start a coffee shop” is not enough.\n\n“Start a coffee shop near a university with late-night study hours and subscription coffee plans” is much more useful to analyze.\n\nThird, simple UX matters.\n\nThe app needs to feel like:\n\nAnything more complicated creates friction.\n\nFourth, distribution matters as much as code.\n\nBuilding the product is only one part of the work.\n\nThe rest is SEO, content, testing, onboarding, pricing, positioning, and trust.\n\nThat is why I have also invested in long-tail SEO, automated content workflows, and thousands of targeted pages designed around specific business questions.\n\nMarket Verdict currently has:\n\nI added the free tier because users need to see value before paying.\n\nI added single purchase because not everyone wants a subscription.\n\nI added subscription because some users will want to test many ideas over time.\n\nThe next areas I am thinking about are:\n\nThe biggest challenge is making the analysis more factual without making the product slow or expensive to run.\n\nYou can try it here:\n\nI would be interested in feedback from other developers, founders, and people building SaaS products.\n\nThe question I am trying to answer is simple:\n\n**Can a structured validation tool help people avoid wasting months on weak business ideas?**", "url": "https://wpnews.pro/news/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building", "canonical_source": "https://dev.to/pigfox/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building-them-57l4", "published_at": "2026-06-03 20:00:22+00:00", "updated_at": "2026-06-03 20:42:10.635263+00:00", "lang": "en", "topics": ["ai-startups", "ai-tools", "ai-products"], "entities": ["Market Verdict"], "alternates": {"html": "https://wpnews.pro/news/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building", "markdown": "https://wpnews.pro/news/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building.md", "text": "https://wpnews.pro/news/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building.txt", "jsonld": "https://wpnews.pro/news/i-built-a-go-app-that-scores-business-ideas-before-you-waste-months-building.jsonld"}}