A huge software preservation effort (saildart.org) plus simulators for the non-standard SAIL hardware lets you run a replica at home, boot up, and log in to the news items (new phone lines and business cards!) up to November 1974. Or do CAD on the famous Data Disc display terminal.
More details:
https://obsolescence.dev/obsolescence-newsletter-may-2026.html#c5
The ITS Reconstruction Project took more than a decade - but recovering data from library tapes, and writing simulators for the original hardware allows you to have a VERY complete MIT AI Lab at home. Truly a labour of love, this: https://obsolescence.dev/its.html
The audio quality might not be great, but this was the granddaddy of any DAW. It did not just play notes, it allowed very precise scoring of classical music. For details, see the end of this page with more information on its programming:
https://obsolescence.dev/pdp1-music.html
We reconstructed the code over the last 1.5 years to run on a replica of the real PDP-1 computer.
(the famous bit of source code in unix v6)
And indeed I don't, not really. But I can compile it, that's something already :-)
Makes my liveaboard the only boat with a mainframe. The PDP-10 (well, yes, replica PDP-10) runs ITS, frozen in the mid 70s. It's been running with basically no downtime for more than a year now.
Tons of software to work and play with makes this machine a fun almost-daily driver, much more useful than an MS-DOS computer from 15 years later (to me, at least). This thing was ahead of its time.
The Thinkpad is used as a Knight TV Terminal, letting me use the mainframe anywhere I want.