A delightful thing I notice in their GitHub page is that Clojure seems to be the second most used language in Walmart Labs.

Seriously, Walmart and Clojure? Who would have imagined! I always thought of Walmart as a boring and traditional company that sells cheap goods. So when I heard about Walmart Labs, I thought all their coding must be in C++ or Java or even Cobol (who knows!).

But to see them using a dialect of Lisp like Clojure and Go more than Java and C++ warms my heart. :-)

https://github.com/awslabs https://github.com/amzn

Are you serious about these links as examples of nice things that Amazon has open sourced? Most of the projects there are development kits to work with Amazon products only.

Check out S2N, Ion, DSSTNE, Carbonado, Guzzle, git-secrets and others.

> How many nice things have Amazon open sourced?

Good research need not always be open sourced. That is irrelevant to it's quality.

Amazon has built a giant business on top of open source technologies. Don't you think it is natural for the open source community to expect that Amazon give something back to them out of courtesy?

The GP asked for a good thing that came out of Walmart Labs hinting at the idea that good things come out from Amazon but not Walmart Labs. Then a few commenters pointed out a few links showing the good things that came out of Walmart Labs. All of these good things happen to be open source. So it is quite natural to ask what good things Amazon bothered to open source after having built a billion dollar business on top of open source.

Again, all this is irrelevant to me as a programmer looking for challenging work. I'll chose good work over "is it going to be open source"?