websocket written in pure Lua, Can be run on openwrt
opkg update
opkg install lua-copas lua-coxpcall luabitop luasocket lua
lua websocket-server.luatest in OpenWrt 21.02.0-rc2 r16122-c2139eef27
version info
lua-copas 2.0.2-1
lua-coxpcall 1.17.0-1
luabitop 1.0.2-1
luasocket 2019-04-21-733af884-1
lua 5.1.5-8