steve64 It would be helpful to add YAML built-in support to LuaRT as done for JSON. LYAML, for instance, could be a potential starting point ([Login to see the link])
kwi as a temporary solution - you can use lyaml as an external dependency (luart supports lua modules), if you dont want to build it by yourself - use precompiled version from any batteries-included distribution, i use [Login to see the link].