[erk__]

No that is not what is happening, HarfBuzz have a experimental Wasm shaper, so the font embeds some wasm code that tells Harfbuzz what to output.

https://github.com/harfbuzz/harfbuzz/blob/main/docs/wasm-sha...

[jcelerier]

oh ok, so it can't work in any system that doesn't use harfbuzz.. that's much less interesting than what I originally thought