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

New packages: caps2esc-0.1.3, interception-tools-0.1.1
https://github.com/void-linux/void-packages/pull/21595

Description:
Two new packages:
* interception-tools (adapted from https://aur.archlinux.org/packages/interception-tools/)
* caps2esc (adapted from https://aur.archlinux.org/packages/interception-caps2esc/)

A service is provided to run caps2esc using tools provided by interception-tools.