What a coincidence, I was working on porting doom to the e-ink badger2040 last week. Getting doom to fit into memory was fairly straightforward, but they did a better job than me. I'm very impressed they got the original WADs and networking going as well. Great work!
I got things drawing with low-complexity WADs, but had issues/graphical snow after a few seconds in and needed more polish to fit the original WAD in memory. I figured the video would be best if it opened with the hangar level, so I haven't made a one yet. Might be worth rebasing off this effort instead.