I created as barebones html file, dropped this in.
Easy peasy.
Ran the file off the device.
Discussion
fyi bitcoindisplay.com is also decent, not as pretty as blockclock but if you just want the price and some basic settings it works great
I made my own "pleb clock" cobbling together pieces of stuff others made before I found Moscow time.
Time chain stats or timechain Calendar might be fun too.
I'd definitely use an old device you don't care about image burn.
I have seen others use e-ink screens.
