John Ousterhout ... Tcl may be the thing that most associate with his name, but to me he's Mr Magic[1]. Magic is the research program that (helped) begat efabless[2] and gives me the hope of making my own chip some day, just after this next major project is over and done with.
I’ve spent around 10 years building software with and around Tcl, embedding Tcl as command processors in a distributed system —- lots of fun.
Some decades later I see that Ousterhout, among others of course, is still contributing to the community, e.g. the Raft consensus algorithm, while the steam may have left Tcl.
1: https://en.wikipedia.org/wiki/Magic_(software)
2: https://efabless.com/kb-articles/layout