Calvin is a GCP-deployed Flask-based web application that applies machine learning to determine whether an open-source repository on Github has an active community (i.e. a "Good" one) or a fairly stale community (i.e. a "Bad" one). Using this application (with "boredboy.py" being a comparable command-line tool), software developers/engineers in big organizations can figure out whether an individual repository has a good community, which is especially important in a production setting: relying on open-source projects that are badly maintained leads to extensive technical debt, a lack of readable documentation, and the fear that a single security vulnerability will go unnoticed/unfixed and therefore put enterprise software at risk, while well-maintained projects strive to reduce technical debt, make documentation good and readable, and find and fix vulnerabilities and bugs a la Linus's Law. With this tool, it should become easier for enterprises, companies, and even singular developers building large-scale systems to use more than just their gut intuition when deciding which communities they should think about trusting critical functionality to.
The name is based on "Calvin" from "Calvin and Hobbes," a cantankerous kid who's infamous for his impatience and general bad temper, and would generally be a kid asking "Is it done yet? Are we there yet? When will this be over?" This generally attempts to parallel the company's attempt at waiting until an issue in an open-source project gets resolved (i.e. opening an issue on Github, and then waiting patiently or impatiently until a maintainer gets back to it).
This is especially important in the enterprise setting (and even in building larger, more involved open-source projects) within the security space. While actual vulnerabilities within codebases can be found via vulnerability scanners (such as Blackduck), understanding how quickly a vulnerability gets found and fixed, and potentially how easy it is for anyone to contribute patches and fixes to the community is something that hasn't been explored in depth, and Calvin is a good start for companies to do so.