libtgowt-dev 0~git20210627.91d836d+dfsg-3ubuntu1~20.04 (riscv64 binary) in ubuntu focal

 This supporting package contains a reduced fork of WebRTC source code. It is
 primarily needed for build support of video calls in Telegram Desktop. WebRTC
 project, in general, provides applications real-time capabilities that work on
 top of an open standard.