civetweb 1.15+dfsg-3 (riscv64 binary) in ubuntu lunar

 CivetWeb is an easy to use, powerful, C (C/C++) embeddable web server
 with optional CGI, SSL and Lua support. CivetWeb has a MIT license so
 you can innovate without restrictions.
 .
 CivetWeb can be used by developers as a library, to add web server
 functionality to an existing application.
 .
 It can also be used by end users as a stand-alone web server running on
 a Windows or Linux PC. It is available as single executable, no
 installation is required.