Prof. Dybvig's paper, "The Development of Chez Scheme" (2006), is a brief history of the #Chez Scheme compiler that he had been working on since 1985. Despite his quiet, understated tone, he manages to convey in this paper his heart-felt enthusiasm for, and decades-long dedication to, the Scheme language and its implementations. This is indeed an inspiration to all of us #geeks. Today, Chez Scheme is one of the fastest, most compact, and most advanced implementation of #R6RS.
Dybvig was, in turn, a student of another pillar of the Scheme community, Prof. Friedman. I first came across Dybvig's work, when I read the 1ed of his famous book, "The Scheme Programming Language" (1987), the 4ed of which was published in 2009 and it covers R6RS.
https://www.amazon.com/Scheme-Programming-Language-Kent-Dybvig/dp/013791864X
The book "Chez Scheme Version 10.0.0 User’s Guide" (2024), published by Cisco, covers the inner workings of Chez Scheme v10, which is a superset of R6RS.
https://cisco.github.io/ChezScheme/csug10.0/csug.pdf
Chez Scheme and the whole of Dybvig's work are the guide posts for all #Lisp and #Scheme #programmers.