This was such a fun neat part of the Direct File code drop 5 months ago. https://news.ycombinator.com/item?id=44131901 https://news.ycombinator.com/item?id=4413

This was such a fun neat part of the Direct File code drop 5 months ago. https://news.ycombinator.com/item?id=44131901 https://news.ycombinator.com/item?id=44131901 In particular there's a pretty nice inline tutorial that's still there in that release: https://github.com/IRS-Public/direct-file/blob/main/direct-file/fact-graph-scala/shared/src/main/scala/_tutorial/01_introduction.worksheet.sc https://github.com/IRS-Public/direct-file/blob/main/direct-f...