I'm the CTO and Cofounder of Workbrew (and Project Leader of Homebrew). Happy to answer any questions folks here may have that wasn't covered in the article.
Best of luck to Mike and team -- I think Workbrew fills a useful niche that more enterprise-y users of Homebrew have long desired, one that the maintainers have recognized but historically deferred since it's outside the scope of a purely OSS client tool.