Let's Make a DOS BBS in an offensively modern way [video]
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This is badly overkill. I used to run my own BBS with several nodes in the early 90s in a 80386 with 2Mb of RAM if I remember correctly. I suppose that going all the way to Kubernetes, cloud and all the technological layers there so on it somewhat offensive in the resource consumption side. But even this is dwarfed by the ChatGPT approach.
https://landley.net/history/mirror/cpm/history.html
If you're going to use a 1980 8-bit OS, why use M$'s crippled version? Use the real thing...