Author here. Thanks to everyone for checking out voice2json!
The TLDR of this project is: a unified command-line interface to different offline speech recognition projects, with the ability to train your own grammar/intent recognizer in one step.
My apologies for the broken packages; I'll get those fixed shortly. My focus lately has been on Rhasspy (https://github.com/rhasspy/rhasspy), which has a lot of the same ideas but a larger scope (full voice assistant).
Questions, comments, and suggestions are welcomed and appreciated!