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gelium-ui

v0.5.5

Published

Server-rendered UI components: Go + HTMX + Tailwind. HTML-first, 0-JS contract, themes by class. Components and styles, not a framework.

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Links

Git

Maintainers

nahuwebnahuweb

Keywords

uicomponentshtmxtailwindcssserver-rendereddesign-systemgelium

Readme

gelium-ui

Server-rendered UI components for Tailwind CSS 4 and HTMX. HTML-first, 0-JS contract by default; progressive enhancement for toast, validation swap, and slider fill.

Install

npm install gelium-ui

CSS (drop-in bundle)

<link rel="stylesheet" href="node_modules/gelium-ui/dist/gelium.css" />

Or from a bundler / CSS pipeline:

@import "gelium-ui/dist/gelium.css";

The prebuilt bundle includes Tailwind preflight, theme-material, theme-basecoat, tokens, and component styles.

Source styles (your own Tailwind entry)

@import "tailwindcss";
@import "gelium-ui/themes/theme-material.css";
@import "gelium-ui/themes/theme-basecoat.css";
@import "gelium-ui/styles/index.css";

Pick themes you need; both ship with the package.

Theme selection

Put the direction class on the document root:

<html class="theme-material">

Dark scheme (class route, no media-only dark):

<html class="theme-material theme-dark" data-theme="dark">

Consumer JS (optional)

<script defer src="node_modules/gelium-ui/js/gelium.js"></script>

Provides:

  • HTMX 422 swap when X-Gelium-Validation: true
  • gelium:toast region helpers
  • Same-document view transitions guard (prefers-reduced-motion)
  • Native range slider fill (--ui-slider-fill)

Templates

Copyable HTML partials live under templates/ (e.g. templates/button.html). Wire them with your server or paste into pages.

What this package is / is not

| Is | Is not | |----|--------| | CSS + HTML open-code components | A React/Vue runtime | | Token + class themes | A full app framework | | Optional small JS enhancements | Required hydration |

Agent guidance

This package teaches LLM tools how to apply Gelium's good practices. When you write UI with an AI agent, point it at these:

  • AGENTS.md — the entry point: golden rules + how to read the guidance.
  • skills/ — 7 actionable decision skills (tokens/themes, screen types, forms, states, server contracts, a11y, definition-of-done + anti-slop).
  • llms-ux.txt — the compact decision-id pack (SURFACE / SCREEN / WF / DATA / FEED / JOURNEY / MEDIA / SKEL) for fast agent lookup.

Install into your agent's skill directory so the LLM loads it in any project:

bash node_modules/gelium-ui/install-agents.sh   # auto-detects hermes/cursor/claude

See SKILLS.md for the skill index.

Monorepo

This package is lib/ in gelium-ui. The docs site dogfoods it via npm workspaces.

License

MIT