Scripting on the JVM with Scala
summary
Claim: Mill now makes Scala viable for real scripting by turning each .scala script into a Mill module with full build features. Mill 1.1.x supports declarative builds via build.mill.yaml, script dependencies and unit tests between scripts, fast startup (scripts load in a few hundred milliseconds), and actions like assembly, precompile, native-image and IDE jump‑to‑definition. Ammonite is being deprecated; Scala CLI exists but Mill uniquely bundles pretty printer, OS lib and UPickle and integrates with existing projects and Maven resolution.
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chapters (9)
- 0:00Scala scripting intro
- 1:26JVM scripting importance
- 5:15Early Scala scripting
- 9:30Ammonite rise and limits
- 15:29Scala CLI improvements
- 17:35Mill declarative builds
- 20:42Mill scripts in practice
- 27:09Mill script advanced features
- 29:15Future of build tools
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