It’s actually using 
by @rblb which is loosely based on @BlackCoffee ‘s lib though :)
GitHub
GitHub - riccardobl/nostrduino: A nostr-tools inspired library for Arduino (and other) microcontrollers. With NWC support
A nostr-tools inspired library for Arduino (and other) microcontrollers. With NWC support - riccardobl/nostrduino
