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The Windows Subsystem for Linux is now open source.
(blogs.windows.com)
This is a most excellent place for technology news and articles.
Yes, there are a bunch of trademarks on the word "gravy", in different industries. I was going to link to that one you mentioned, because for some reason despite being plush toy products, the company holding it was Bob Evans. But it's since been canceled, and the company name doesn't appear on the page, so I chose an active trademark instead.