Hackernews posts about Ink

Ink is a type of liquid pigment used for writing or drawing on various surfaces, including paper, fabric, and digital displays like e-ink screens.

Related: RP2040  
  1. E-Ink PDA (github.com)
  2. Syncing Keyhive (www.inkandswitch.com)
  3. Ambsheets (www.inkandswitch.com)