Note: As noted in [1], luacurl (and freepops-luacurl) adopts the easy interface, while LuaCURL is aiming for a full-fledged libcurl binding (easy/multi/share interface). luacurl and freepops-luacurl share a luaforge project page and are also in the same LuaDist "luacurl" git repo (in separate branches), but they appear to have been independently developed. luacurl exists as a package in LuaRocks, LuaDist, and LuaForWindows.