Source, credits and licences

Copyright © 2026 Lich Patcher contributors. This is free software under the GNU General Public License, version 3 or later. You may use, study, modify and redistribute it under those terms. It comes with no warranty, including no warranty of merchantability or fitness for a particular purpose. Third-party components retain their original notices.

Source for this deployment

• Application source
• Preview engine source: libpd-wasm, Pure Data, Cyclone and ELSE
• Original hvcc reference documentation
• Preview build instructions
• Pinned upstream revisions · Release checksums

To rebuild the application, extract its source and copy both upstream source archives above into public/source/. Run npm ci and npm run build. Git and network access are needed if regenerating reference docs.

Credits

Thanks to Befaco and Rebel Technology for Lich and OWL; Miller Puckette and Pure Data contributors; libpd and hyrfilm/libpd-wasm; the Cyclone and ELSE authors; Enzien Audio and Wasted Audio; and the Emscripten, musl and Vite browser-helper contributors.

The preview includes GPL reverbs by Juhana Sadeharju and Tom Schouten, adapted by Alexandre Torres Porres. Fonts are Barlow / Barlow Condensed by Jeremy Tribby and JetBrains Mono by JetBrains, loaded from Google Fonts under the SIL OFL.

The built-in 120 BPM drum loop was synthesised for Lich Patcher and is dedicated to the public domain under CC0 1.0.

Full credits, licensing scope and source provenance · All third-party copyright notices and licence texts

This independent project is not an official Befaco or Rebel Technology product. Names identify compatibility and credit authors; they do not imply endorsement.