> So I do dream of a laptop running on an mcu with an eink screen that has 1 month of battery but no commercial power. And running common lisp at boot as that's all I need anyway. I am close to just forking over 10k to have one custom made, but still hope someone else will do it.

I share that dream (and have written a few times about it in comments on HN). In case you find one, or go ahead with having one built, let me know. I might put in 10k as well.

Specs:

- low-energy CPU, no GPU

- e-Ink display b/w or gray

- very good keyboard (ThinkPad-type quality for intensive writing)

- battery life: 2-4 weeks

- size: A5 or between A5-A4

- 64 bit OS: Linux or BSD

- good text editor (Emacs, Sublime) with mail client (VM), GCC/Clang++

- weight: 700-900 g

- EDIT: icing on the cake: "no boot mode" that fires up a shell prompt in <2s, e.g. based on starting an OS instance that had a snapshot taken _after_ booting up, to give you the same feel of the Cosy Computing home computers of the 1980s. - because it's possible (hey, my washing machine and dishwasher don't need to boot either!).