AshTypst

Precompiled Rust NIFs for rendering Typst templates via an extensible data-encoding protocol with built-in Ash support. Compile markup to SVG, PDF, or HTML with persistent contexts that keep fonts and compiled state in memory for fast, iterative rendering.

Features

• Persistent context — font scans are cached process-wide and reused across contexts and compiles; call AshTypst.refresh_fonts/0 to pick up newly installed fonts
• Multi-page rendering — compile once, render any page as SVG
• PDF export — proper binary output with page ranges, PDF/A standards, and document IDs
• HTML export — via typst-html
• Virtual files — inject data as in-memory .typ files your templates can #import
• Sandboxed filesystem access — opt in to reading templates and assets from a root directory; disabled by default
• Streaming — feed large datasets from Elixir streams into virtual files in constant memory
• sys.inputs — pass simple string parameters accessible via #sys.inputs in templates
• Rich diagnostics — compile errors include line/column numbers
• Data encoding — the AshTypst.Code protocol converts Elixir types (maps, lists, dates, decimals, Ash resources) to Typst syntax
• Timezone-aware encoding — dates and times are automatically shifted to a configured timezone when encoding to Typst
• Ash Resource Extension - define template-rendering actions inside your resources via DSL

Documentation

• Get Started — installation, quick start, and a tour of the API
• Templating — structuring templates and injecting data the AshTypst way
• Multi-Language Documents — Gettext, translated content, CLDR formatting, CJK fonts
• Sensitive Data — what reaches templates and how to keep secrets out
• AshTypst.Resource DSL reference