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If you don't have a spare Kindle lying around, smallish e-paper modules are nowadays quite cheap, and can be driven easily from a Raspberry Pi (Zero W upwards).
That's what we did on our boat:
https://github.com/meri-imperiumi/dashboard
That's cool.
I've build a similar thing for my kindle.
https://github.com/makepanic/eink-weather
It is a simple website, which a headless chrome screenshots to use with the online screensaver app.
A browser might be overkill but I wanted to avoid manual layouting.
In addition to the power efficiency, one advantage of an e-ink screen is that it does not illuminate a room at night. And interestingly, a Kindle or similar device still seems to be the cheapest way to get a touch-enabled e-ink display of a reasonable size.
FWIW the Kindle Paperwhite also has an Experimental "Beta Browser" that can display websites and execute some JavaScript - I am using that for a similar project, a basic dashboard / light switch web application hosted on a Raspberry Pi.
https://github.com/janhapke/screendle
Reminded me of the tool turning Pocketbook E-Ink readers into computer monitors, which I made several years ago:
https://github.com/borzunov/remoteink
This could be used for the dashboards as well (no screen updates happen if the content doesn't change), if connected to a remote server or a Raspberry Pi.
Also, it allows to zoom in/out, switch between the opened windows, and move around the screen with keyboard shortcuts. No jailbreak is needed for the reader.