--- title: The Self-Improving Loop Breakthrough in Avalonia | daily.dev description: After 6 months of failure, my model just taught itself to build pixel-perfect Avalonia UI — with no screenshots, no vision model, and no help from me. This is... canonical: https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The Self-Improving Loop Breakthrough in Avalonia | daily.dev og:description: After 6 months of failure, my model just taught itself to build pixel-perfect Avalonia UI — with no screenshots, no vision model, and no help from me. This is... og:url: https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs og:image: https://api.daily.dev/og/posts/hLxPiZmbs.png og:image:alt: The Self-Improving Loop Breakthrough in Avalonia 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. # The Self-Improving Loop Breakthrough in Avalonia **[AngelSix](https://daily.dev/sources/angelsix)** · 11 min read · 0 upvotes · 0 comments ## Summary After 6 months of failure, my model just taught itself to build pixel-perfect Avalonia UI — with no screenshots, no vision model, and no help from me. This is the follow-up to Model Training Primer, and this is the breakthrough. For the first time I have a truly self-contained, self-improving loop where my custom model can see layout data, catch its own padding and margin mistakes, fix them, and keep learning indefinitely. It even found a bug in how thickness tokens render. If you've ever tried to get AI to make Avalonia UI you'll know it's absolutely awful — until now. WHAT YOU'LL LEARN: - Why primers, docs, rules and frontier models all failed miserably for Avalonia UI - How God's Amul mechanical code catches the classic LLM Avalonia mistakes - How I wired XAML compile errors from Rider into an auto-harness - How my headless frame buffer engine lets a non-vision model see layout as structured data - The live demo: self-detected search bar padding fix + font boundary understanding with zero visual input - The thickness token bug my model found on its own - What's next: indefinite training toward a full theme engine that can reproduce gorgeous complex UI verbatim --- TIMESTAMPS: 00:00 - This doesn't look impressive, but it's massive 00:53 - Why every model fails at Avalonia UI 01:27 - First thing that worked: God's Amul 02:30 - Next level: XAML compile error harness 02:51 - Why screenshots + vision models can't work 03:40 - First pixel-perfect breakthrough 04:29 - No UI, no screenshots, it fixed padding by itself 05:12 - It found a bug in thickness tokens 05:50 - Done entirely in code, no vision 07:15 - I can now leave training running indefinitely 10:12 - Testing on Javier's gorgeous Avalonia design 11:44 - Amazing things coming soon --- LINKS: GitHub: https://github.com/angelsix Website: https://www.angelsix.com Avalonia UI: https://www.avaloniaui.net #AvaloniaUI #LLMTraining #LocalLLM #CSharp #DotNet ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#machine-learning](https://daily.dev/tags/machine-learning), [#llm](https://daily.dev/tags/llm) [View this post on daily.dev](https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs) ```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":"The Self-Improving Loop Breakthrough in Avalonia","url":"https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs"},"datePublished":"2026-10-04T13:04:27.781Z","dateModified":"2026-10-04T21:56:42.991Z","description":"After 6 months of failure, my model just taught itself to build pixel-perfect Avalonia UI — with no screenshots, no vision model, and no help from me.\n\nThis is...","image":"https://i.ytimg.com/vi/e2FfsKCT0ro/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/e2FfsKCT0ro/sddefault.jpg","isAccessibleForFree":true,"articleSection":"AngelSix","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"AngelSix","logo":"https://media.daily.dev/image/upload/s--h1ikmN_u--/f_auto,q_auto/v1791119063/logos/angelsix?_a=BAMAMicg0","url":"https://daily.dev/sources/angelsix"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/the-self-improving-loop-breakthrough-in-avalonia-hlxpizmbs","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"machine-learning,llm","timeRequired":"PT11M","video":{"@type":"VideoObject","name":"The Self-Improving Loop Breakthrough in Avalonia","description":"After 6 months of failure, my model just taught itself to build pixel-perfect Avalonia UI — with no screenshots, no vision model, and no help from me.\n\nThis is...","thumbnailUrl":"https://i.ytimg.com/vi/e2FfsKCT0ro/sddefault.jpg","uploadDate":"2026-10-04T13:04:27.781Z","duration":"PT11M","url":"https://api.daily.dev/r/hLxPiZmbs","embedUrl":"https://www.youtube.com/embed/e2FfsKCT0ro"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"AngelSix","item":"https://daily.dev/sources/angelsix"},{"@type":"ListItem","position":3,"name":"The Self-Improving Loop Breakthrough in Avalonia"}]} ```