I came across the project before but they don’t have biometric stats that I was looking for.

I don’t know of any e-ink displays outside of Fossil but give Garmin a try. I use the Vivoactive 4 and get a week+ of battery.

I went from Pebble > Fossil > Garmin.

If you allow root privileges, there is:

sudo rm -rf --no-preserve-root /

If you want to be malicious:

sudo dd if=/dev/urandom of=/dev/sdX

or

sudo find / -exec shred -u {} \;

Subservient human-like cephalopod species in Dr. Who.

You can also look into Navidrome

Apps that use the Subsonic API can stream from it.