(answering the conference part of the question) There was a recent HN submission for such aggregator. See if it helps you. Show HN: A tech conference aggregat

(answering the conference part of the question) There was a recent HN submission for such aggregator. See if it helps you. Show HN: A tech conference aggregator - https://news.ycombinator.com/item?id=12943889 https://news.ycombinator.com/item?id=12943889