Sources were originally provided at https://github.com/librefonts/carme in .sfd format (FontForge) and the latest version in that format is available at commit 823391960931cedd0b9cb7caf0fcae71c4bd59ba.
On 1 Jul 2026, the sources were converted to .glyphs format using babelfont-rs in a new repo hosted at https://github.com/googlefonts/carme