--- title: Penguins and pasta: What I learned from making an app in... description: A developer shares their experience building a full-stack Flutter and .NET app in four weeks for a $20K competition using AI coding tools. The workflow... canonical: https://daily.dev/posts/penguins-and-pasta-what-i-learned-from-making-an-app-in-4-weeks-with-ai-g3mlv2dtv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Penguins and pasta: What I learned from making an app in 4 weeks with AI | daily.dev og:description: A developer shares their experience building a full-stack Flutter and .NET app in four weeks for a $20K competition using AI coding tools. The workflow... og:url: https://daily.dev/posts/penguins-and-pasta-what-i-learned-from-making-an-app-in-4-weeks-with-ai-g3mlv2dtv og:image: https://api.daily.dev/og/posts/G3Mlv2dtv.png og:image:alt: Penguins and pasta: What I learned from making an app in 4 weeks with AI og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Penguins and pasta: What I learned from making an app in 4 weeks with AI **[LogRocket](https://daily.dev/sources/logrocket)** · 15 min read · 0 upvotes · 0 comments ## Summary A developer shares their experience building a full-stack Flutter and .NET app in four weeks for a $20K competition using AI coding tools. The workflow involved OpenCode running on a home VM, accessed via SSH from a phone, with an orchestrator agent delegating tasks to specialized agents for design, documentation, and coding. Key tools included Google's Antigravity IDE (criticized heavily for instability), Claude Opus 4.5, and Kilo.ai. Lessons learned include the importance of precise prompting, the risk of AI hallucinating feature placement, the danger of models looping on unsolvable problems, and the real cost difference between token buckets and pay-per-use pricing. Despite not winning, the author found the experiment valuable for demonstrating how much a solo developer can ship quickly with AI assistance. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Lessons from taking an idea to a live app with AI](https://daily.dev/posts/lessons-from-taking-an-idea-to-a-live-app-with-ai-ibg8c8ymr) · Medium · 0 upvotes · 0 comments - [AI App Development: What I Learned in One Month](https://daily.dev/posts/ai-app-development-what-i-learned-in-one-month-2tskdg55u) · SwiftLee · 1 upvotes · 0 comments - [I Stopped Coding for 5 Years. AI Helped Me Ship Mobile Apps Again](https://daily.dev/posts/i-stopped-coding-for-5-years-ai-helped-me-ship-mobile-apps-again-z52sfqzxh) · ProAndroidDev · 0 upvotes · 0 comments --- Tags: [#ai-coding](https://daily.dev/tags/ai-coding), [#claude](https://daily.dev/tags/claude), [#flutter](https://daily.dev/tags/flutter), [#opencode](https://daily.dev/tags/opencode), [#vibe-coding](https://daily.dev/tags/vibe-coding) [View this post on daily.dev](https://daily.dev/posts/penguins-and-pasta-what-i-learned-from-making-an-app-in-4-weeks-with-ai-g3mlv2dtv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Penguins and pasta: What I learned from making an app in 4 weeks with AI","url":"https://daily.dev/posts/penguins-and-pasta-what-i-learned-from-making-an-app-in-4-weeks-with-ai-g3mlv2dtv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/penguins-and-pasta-what-i-learned-from-making-an-app-in-4-weeks-with-ai-g3mlv2dtv"},"datePublished":"2026-06-09T09:51:10.081Z","dateModified":"2026-06-18T02:15:52.823Z","description":"A developer shares their experience building a full-stack Flutter and .NET app in four weeks for a $20K competition using AI coding tools. 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