[rmccue]

A more affordable alternative to this is the Inkplate series, which uses recycled e-ink screens from tablets: https://soldered.com/categories/inkplate/

The software runs on an ESP32 and is all open source: https://inkplate.readthedocs.io/en/latest/

[foul]

It's affordable but some displays cost as much as waveshare displays, and waveshare displays are new, not refurbished/repurposed.