Concise May 2026 monthly summary for com-lihaoyi/mill highlighting two focused deliveries: (1) Build stability and incremental compilation improvements via Inactive Annotation Processor Detection to preserve Zinc incremental compilation in mixed Scala/Java modules; (2) Documentation enhancements for the mill-strict-deps plugin to improve dependency hygiene. The work aligns with performance and maintainability objectives for JVM multi-module builds.

April 2026 monthly summary for com-lihaoyi/mill: Focused on performance and incremental build reliability for Scala.js workflows and Zinc. Key outcomes: 1) LinkerInput equality optimization enabling linker cache reuse, reducing Scala.js build times by avoiding redundant work. Implemented and tested in commit b4bf26ba8320508641f620da69ef0da5792be2ea (scalajslib: fix LinkerInput equality so the linker cache hits). 2) Regression fix for incremental builds by excluding color options from Zinc MiniSetup equivalence checks; prevents unnecessary recompilations due to -color:* settings. Implemented via IncOptions.withIgnoredScalacOptions(Array("-color:.*")) with regression tests; commit 8b360122fd1675247a37fb5843f2af8236a6f556. 3) Regression tests added to validate unedited files remain unchanged across incremental builds. 4) Overall: improved developer productivity through faster, more reliable incremental builds and reduced cache invalidations. Skills demonstrated: Scala, Mill, Scala.js, Zinc, IncOptions, MiniSetup, incremental compilation, manual repros and regression testing.

Monthly summary for 2026-01 focused on com-lihaoyi/mill. The work centered on stabilizing the CI pipeline to ensure reliable cross-architecture native image publishing and preventing regressions from runner changes. Key highlights: - Delivered a CI workflow fix to publish Intel (x64) native images by switching to macos-15-intel runners, addressing failures introduced when the macOS runner was updated to macos-14 (ARM64). - Included root-cause analysis and documentation of macOS runner changes, helping prevent future regressions. Impact and accomplishments: - Restored reliable Intel-native image publishing, reducing publish failures, reruns, and manual interventions. - Improved CI stability for multi-architecture builds, accelerating artifact delivery to users and downstream teams. Technologies and skills demonstrated: - GitHub Actions workflow configuration and debugging - Cross-architecture CI with macOS runners (macos-15-intel) and native image publishing - Root-cause analysis, change documentation, and incident learning

July 2025: Focused bug fixes across two repositories to improve build reliability and documentation quality, delivering tangible business value through clearer code generation and accurate docs. The changes reduce maintenance overhead, onboarding time, and support questions by addressing root-cause issues in code generation and documentation examples.

Month 2024-11: Focused on optimizing the metals docs pipeline. Key features delivered: Docusaurus upgraded to 3.6.0, removal of the custom SWC webpack configuration, and activation of the experimental faster build feature, resulting in faster docs builds. Major bugs fixed: none reported; work concentrated on performance and maintainability of the docs. Overall impact: faster, simpler, and more reliable documentation site for metals, with reduced maintenance overhead. Technologies/skills demonstrated: Docusaurus v3, build optimization, webpack/SWC configuration management, and performance engineering.