I am a retired physicist from MIT Lincoln Laboratory. As a hobbyist, I was one of the developers of a TCC-like command processor called ZCPR, part of the operating system known as Z-System for the old 8-bit CP/M computers. Amazingly, it had many of the features of TCC even though it was running on a computer whose total memory was just 64 KB (that's kilobytes, not megabytes or gigabytes).

Jay Sage, Windows 10 x64
TCMD32 (& TCMD 30 and 27)