[HECnet] The Tym Before ... Tymnet book

I know this is somewhat off-topic - but hopefully it is something in line with most list members interests, if not I apologize. It seems a Mr. Nathan Gregory has written a book on the history of Tymshare's Tymnet, called "A Tym Before". He has a website at https://www.chromosomequest.com/tym-before and a video presentation at https://youtu.be/1rrYQOpZ3Q0. I've read the book myself yet so I can't put forth an opinion or a review, but it seems like it could be quite interesting. I hope it has some technical details and isn't all just corporate history. The presentation was a bit underwhelming for me, having extensively "researched" this network in the past, but still quite informative. On a tangent - Since MAME has SPARCstation support working now (https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=44666&a…)age=516), I wonder how difficult it would be to bring up Sunlink X.25 / Solstice X.25)? -- Jeffrey H. Johnson jhj at trnsz.com https://ban.ai/multics