Embedding Discourse Categories / Latest Topics into Site

I can figure out how to embed on wix via iframe , its pretty user friendly.

I’m more so looking towards info on configuring the back end of discourse to enable me to do so ie: what code from discourse to put in the wix iframe embed.

Currently I have under admin > customize > embedding

allowed hosting > pointing to domain
class type > “randomcharacters”
path whitelist - nothing , not sure what to put
post to category > lounge

It spits out a code , I inserted into the wix embed with replaced link , but the iframe does not populate with any content.

Thanks for the help so far , best regards.