Puzzles and Problem Solving with Scala Tooling.

on YouTube ↗29m

" summary

Reports using Scala 3 worksheets and Metals as a live, editable REPL: hundreds of hours of recorded puzzle sessions surface recurring mistakes and teach the value of tiny inline tests. Demonstrates building a flood‑fill pathfinder on a grid, catches a concrete bug (copy‑pasted X/Y in adjacency), and measures progress by iterative inline checks. Also experiments with GitHub Copilot X and SourceGraph Cody to see where AI helps or fights the exploration flow.

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" chapters (5)

1. 0:00Introduction to talk
2. 1:26Why live coding matters
3. 7:50Interactive environments explained
4. 12:07Worksheets as whiteboards
5. 28:44Q&A and closing

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