The Startup Ideas Podcast I Built an Entire App in Only 52 Min with Codex & Idea Browser
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Oct 17, 2025 
Alex Finn, a product builder and AI creator, showcases the journey from concept to app in record time. He dives into using Idea Browser to spot trending business ideas and employs ChatGPT to refine them. Alex explains crafting a detailed product requirements document to enhance AI's performance and employs OpenAI's Codex for coding. He also reveals strategies for running parallel AI agents for development and marketing, emphasizing how to acquire early users through organic outreach. Tune in to learn how to leverage AI for rapid app development!
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Find Ideas Where You Have Interest And Low Competition
- Use Idea Browser to find trends you care about and pick ideas with growth but low competition.
- Then refine those ideas in ChatGPT to produce 3 practical app concepts you can actually build.
Turn Trends Into Buildable App Ideas Fast
- A focused prompt to ChatGPT converts a trend page into multiple actionable app ideas quickly.
- This step both accelerates ideation and surfaces practical, solo-founder-friendly concepts.
Give AI A Markdown PRD Before Coding
- Before coding, convert your chosen idea into a concise PRD so AI agents have clear instructions.
- Provide the PRD as a markdown file to improve how coding agents ingest requirements.