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Typsastra Enhanced Unicode Engine v0.1.0

This is the first reproducible release of Typsastra's optional Enhanced Unicode PDF export engine. It is distributed from the Typsastra repository to keep the application and its compatible developer toolchain in one trusted location.

The engine is based on Typst 0.15.1 and preserves logical Unicode units when exporting shaped complex-script text through Krilla. It is intended to improve text extraction, search, copy and paste, and selection interoperability in PDF viewers without changing the visual document layout.

Source identity

  • Engine version: 0.1.0
  • Typst CLI compatibility: 0.15.1
  • Enhanced Typst revision: ee922252539d51e6520caa8a3bd3808f708f5f50
  • Enhanced Krilla revision: 92cd34f2f9b7ff2d02b7d2b358d7d7a27e3c1dce
  • License: Apache-2.0

Platform packages

The release workflow builds ZIP packages for Windows x64, Linux x64, Linux ARM64, macOS x64, and macOS ARM64. Each package contains the compatible typst executable, its Apache-2.0 license, and exact source metadata. The generated enhanced-unicode-manifest.json records each archive's byte length and SHA-256 digest for managed installation in a future Typsastra update.

Validation

Every platform build must:

  1. report the expected Typst 0.15.1 CLI version,
  2. compile Typsastra's multilingual Enhanced Unicode fixture, and
  3. produce a non-empty PDF before it can be attached to the draft release.

The engine has been manually exercised with Typsastra's PDFium standalone preview across Latin, combining marks, Khmer, Arabic, Devanagari, Thai, Lao, mixed-script text, punctuation, search, selection, and clipboard workflows.

Scope

This optional engine is used only for explicit PDF export. Tinymist remains the compiler and language service for live preview, autocomplete, diagnostics, and source synchronization. The packages are Typsastra developer toolchain assets, not official upstream Typst binaries.