Excellent. Thanks for the feedback. I’m enjoying this little beastie and will likely replicate your work with either the with the N01 or N02 (if I can get one). I’m about to test some simple things over the next few weeks like zigbee2mqtt with zig-ahh (in hand), a light mqtt server just for the kicks, using an ultra light dns server, etc. I have severe dementia so I’ll have to make a list and carefully follow it. Fortunately I remember *nix from the beginning at ATT so I remember some of this stuff when I can’t remember my birthday.
Side note: advantabe of using your large 1Gb chip is that this chip support XIP. So you can mark pages RO and then use them for RO program portions (aka like the nodemcu LFS, etc). In reality you can considerable expand program size doing what you have done with XIP (with an order of magnitude lookup slowdown).
Again I appreciate your feedback and good luck on exams. Smart people that apply theselves do well in the world.