It's interesting that you would name Cisco. They hired Kent Dybvig and acquired Cadence Research Center in 2011 for Chez Scheme[0] — possibly for use in process

It's interesting that you would name Cisco. They hired Kent Dybvig and acquired Cadence Research Center in 2011 for Chez Scheme[0] — possibly for use in processing IOS configs, testing, and network management. It seems like Chez was the most performant scheme in the day[1] and was proprietary, expensive, and possibly not available to individuals.[2] There were a number of good free schemes[3], and Chez was open-sourced in 2016, but I wonder how much of Perl, Ruby, and Python's popularity derived from their open licenses. [0]: https://web.archive.org/web/20241107091603/http://community.schemewiki.org/?Chez https://web.archive.org/web/20241107091603/http://community.... [1]: https://web.archive.org/web/20180917033028/https://ecraven.github.io/r7rs-benchmarks/ https://web.archive.org/web/20180917033028/https://ecraven.g... [2]: http://www.cs.cmu.edu/Groups/AI/html/faqs/lang/scheme/part2/faq-doc-2.html http://www.cs.cmu.edu/Groups/AI/html/faqs/lang/scheme/part2/... [3]: http://www.cs.cmu.edu/Groups/AI/html/faqs/lang/scheme/part2/faq-doc-1.html http://www.cs.cmu.edu/Groups/AI/html/faqs/lang/scheme/part2/...