libcoap2-doc 4.2.1-1 (armhf binary) in ubuntu focal

 Lightweight application-protocol for devices that are constrained their
 resources such as computing power, RF range, memory, bandwidth, or network
 packet sizes. This protocol, CoAP, is developed in the IETF working group
 "CoRE", <http://6lowapp.net> and was standardized in RFC 7252.
 .
 This package contains the Doxygen generated library API HTML documentation
 for libcoap.
 They can be accessed by open /usr/share/doc/libcoap2-doc/html/index.html.