You are using staging server - a separate instance of the ESP Component Registry that allows you to try distribution tools and processes without affecting the real registry.
# Abstraction layer for HTTP2 with TLS [![Component Registry](https://components.espressif.com/components/espressif/sh2lib/badge.svg)](https://components.espressif.com/components/espressif/sh2lib) This component contains an abstraction layer which exposes simpler set of APIs combining `nghttp2` (HTTP/2 C Library) and `esp-tls` (from ESP-IDF) components.
idf.py add-dependency "espressif/sh2lib^1.0.3~2"