AgnosticUI – A source-first UI library built with Lit

Show HN: AgnosticUI – A source-first UI library built with Lit

AgnosticUI – A source-first UI library built with Lit is a business in show hn launch.

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I’ve spent the last few years building AgnosticUI. It started as a CSS-first monorepo with logic manually duplicated across framework packages. It turned into a maintenance nightmare.I recently completed a total rewrite in Lit to align with web standards and unify the core. One major architectural shift was moving to a "Source-First" model. Instead of a black box in node_modules, the UI source lives in your local project workspace.This makes the components fully visible to LLMs, preventing the hallucinations common when AI tries to guess at hidden library APIs. I wrote a technical post-mortem on Frontend Masters detailing the hurdles of this migration (Shadow DOM a11y, Form Participation, an

AgnosticUI – A source-first UI library built with Lit is positioned in show hn launch, a segment that rewards a clear, focused offering.

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Website: www.agnosticui.com