Alright, tomorrow is the big day!
I'll also go for a week, actually 6 days, in the TTY. I've attempted setting a NextStep/OPENSTEP in a VM with internet and a good resolution but I wasn't able to do that properly.
I was following both this tutorial and this one for those interested in attempting the same experiment.

My machine is ready for the week in the TTY, the only thing I'm still testing with which email and web clients I'll go for. Previously, I've had a custom script to check emails and for browsing the web I was using links, sometimes with -g to display images in the framebuffer. However, these days you can run a full browser such as browsh wich has a headless firefox underneath, or you can rely on proxies such as frogfind to access pages that weren't accessible without a modern browser. I'm also considering using some reader mode script to fetch pages and read them offlines, such as htmlfmt, html2text, or even rdrview.
As for emails, interestingly, I can use links for my personal emails in the browser but for gmail it doesn't seem to work, even from within browsh, so I think I'll try some curses UI for it like alpine.