There's a merged pull request on the void-packages repository

jack: update to 1.9.13, adopt package
https://github.com/void-linux/void-packages/pull/15267

Description:
* basic functionality tested on x86_64
* use python3 (jack_control script is now python3 compatible)
* optional support for FireWire devices (libffado) added via `ffado` buildoption