lintc

Install in one line

uv tool install lintc      # recommended — isolated, no env needed
pipx install lintc         # equivalent if you prefer pipx
pip install --user lintc   # also fine

Requires Python 3.9 or newer. No other dependencies.

Quickstart

Scaffold a site:

src/
├── content/
│   ├── pages/home.yaml       # structured pages
│   ├── blog/*.md             # Markdown posts with YAML front matter
│   └── products/*.yaml
├── layouts/
│   ├── _base.html            # the master layout
│   ├── home.html             # page layouts
│   └── partials/             # shared chrome (head, header, footer, components)
├── data/                     # site-wide data (site.yaml, nav.yaml, etc.) + optional lintc.yaml
└── static/                   # copied verbatim into dist/

Build it:

lintc build              # emits dist/
lintc serve              # dev server with live reload at http://127.0.0.1:8000/
lintc check              # post-emit validations + configurable plugins

CLI

lintc build [--root DIR] [--include-drafts]
lintc serve [--root DIR] [--host HOST] [--port PORT] [--no-reload] [--no-drafts]
lintc check [--root DIR]
lintc --version
lintc --help

build hides drafts by default — use --include-drafts to opt them in. serve shows drafts by default — use --no-drafts to hide them.

lintc check's validators are configurable via src/data/lintc.yaml — see the docs for the schema.

lintc also supports check-time plugins, enabled under check.plugins in the same lintc.yaml. Plugins run during lintc check and can mutate the working tree (review drift with git diff). Bundled check-time plugins:

• remote-sync — mirrors external files (e.g. upstream READMEs) to local paths via a committed lockfile (src/data/lintc-sync.lock). Pair with body_source to keep page body content in sync with upstream automatically.
• tag-sync — sets a content YAML's version: field from a repo's latest git tag, tracked in src/data/lintc-tag.lock.
• terminal-mock — regenerates a product page's terminal.body_html block by capturing real CLI output under a PTY, converting ANSI to t-* <span> classes, and wrapping in static shell chrome. Tracks output in src/data/lintc-terminal.lock.

lintc also supports build-time plugins, declared under build.plugins in the same lintc.yaml. A plugin contributes a shortcode plus its own JS/CSS, which are emitted into dist/ (and the matching <link>/<script> tags injected) only on pages that actually use the shortcode. lintc bundles one: lintc-swiper, a zero-dependency inline image carousel authored with the {{< lintc-swiper >}} shortcode (add loop="true" to wrap from the last slide back to the first).

Why it exists

The reason lintc exists is that the static site for lintuxt.ai needed a compiler, and the existing Python options either required a dependency graph I didn't want (Pelican, MkDocs) or a runtime I didn't want (Hugo's Go binary, Eleventy's Node.js). The constraint was: one file, stdlib only, no installation ceremony beyond having Python on the box.

It turned out to fit a useful niche. Personal sites and small documentation trees don't need the kitchen sink — they need layouts, partials, Markdown, structured data, and a dev server. lintc does exactly that and nothing more. The whole compiler is one Python file you can read top-to-bottom in an hour, including tests.

The trade-off is real: lintc is not Hugo, not Eleventy, not Astro. There's no plugin ecosystem of templates, no theme marketplace, no first-class image optimization, no markdown extension marketplace. If you're building a 500-page documentation site for a SaaS product, this is the wrong tool. If you're building a personal site, a project page, or a small handful of docs and you want the build pipeline to fit in your head, lintc is the right shape.

It also doubles as a portfolio surface: every release of lintc is visible on its own engineering page on lintuxt.ai, embedded via lintc's own body_source field and the remote-sync plugin keeping the content in sync from this very README. The site you might be looking at is built by the thing you're reading about.