Pinned @matbee/libreoffice-converter 2.7.2 (MPL-2.0), upstream commit b72a3d5.
Browser conversion worker removes forced ENV.MAX_CONCURRENCY=1 to prevent PPTX serialization deadlock, disables editor-only synchronous-event dispatch, and quiets debug logging. soffice.js prewarms 12 pthread workers instead of 4 to avoid synchronous export waiting for a newly spawned worker. No binary WASM modifications.
Source: https://github.com/matbeedotcom/libreoffice-document-converter
LibreOffice WASM build instructions and patches: build/
Binary distribution is pinned npm package @matbee/libreoffice-converter@2.7.2.
