The overlap with Jetpack's devbox name is not fine. Not morally, given the massive overlap in functionality between the two implementations. At the very least, their existence will prevent you from getting a trademark.
Both projects even use devbox.json for their definitions, for crying out loud. If your usage is not compatible with Jetpack's devbox.json, please switch to a different filename ASAP.
There has to be a better way to phrase this