
Spencer Wong contributed to the ACCESS-NRI/ACCESS-ESM1.6 repository by delivering a series of configuration and deployment updates focused on build reproducibility and environment consistency. Over four months, Spencer managed Spack-based YAML configurations to pin component versions, align dependencies, and synchronize deployment environments, reducing drift and improving traceability across model runs. His work emphasized configuration management, dependency management, and version control, leveraging Git for change tracking and Spack for environment specification. By upgrading component tags and maintaining clear version histories, Spencer enabled deterministic builds and streamlined validation workflows, demonstrating a methodical approach to software versioning and cross-component coordination in scientific software.

December 2025 monthly summary for ACCESS-NRI/ACCESS-ESM1.6 focused on delivering up-to-date deployment alignment and maintaining system compatibility.
December 2025 monthly summary for ACCESS-NRI/ACCESS-ESM1.6 focused on delivering up-to-date deployment alignment and maintaining system compatibility.
June 2025, ACCESS-NRI/ACCESS-ESM1.6: Delivered a dependency alignment update by updating spack.yaml to reference newer development tags for access-esm1p6 and um7. This enables downstream access to recent fixes and improvements while maintaining build stability. Commit reference: bdbcff1abd4d92a8338d1d8004c32bb4258fe07f ("Update to new UM tag"). No major bugs fixed this month. Overall impact: reduced dependency drift, improved reproducibility, and accelerated access to fixes for downstream users. Technologies demonstrated: Spack configuration management, tag-based dependency pinning, Git-based change tracing, and build reproducibility practices.
June 2025, ACCESS-NRI/ACCESS-ESM1.6: Delivered a dependency alignment update by updating spack.yaml to reference newer development tags for access-esm1p6 and um7. This enables downstream access to recent fixes and improvements while maintaining build stability. Commit reference: bdbcff1abd4d92a8338d1d8004c32bb4258fe07f ("Update to new UM tag"). No major bugs fixed this month. Overall impact: reduced dependency drift, improved reproducibility, and accelerated access to fixes for downstream users. Technologies demonstrated: Spack configuration management, tag-based dependency pinning, Git-based change tracing, and build reproducibility practices.
In April 2025, delivered Spinup Environment Version Upgrades for the ACCESS-NRI/ACCESS-ESM1.6 project, upgrading multiple components in spack.yaml (access-esm1p6, cice4, um7, mom5, and access-generic-tracers) to reflect newer development branches/releases and enable a new spinup run. This work enhances reproducibility, reduces environment drift, and accelerates validation of the spinup workflow.
In April 2025, delivered Spinup Environment Version Upgrades for the ACCESS-NRI/ACCESS-ESM1.6 project, upgrading multiple components in spack.yaml (access-esm1p6, cice4, um7, mom5, and access-generic-tracers) to reflect newer development branches/releases and enable a new spinup run. This work enhances reproducibility, reduces environment drift, and accelerates validation of the spinup workflow.
March 2025: Delivered reproducible build updates for ACCESS-ESM1.6 via Spack configuration changes, pinning the CICE hash and development-version tags to ensure deterministic builds across decomposition runs. Focused on build reliability and traceability with no user-facing bug fixes this month.
March 2025: Delivered reproducible build updates for ACCESS-ESM1.6 via Spack configuration changes, pinning the CICE hash and development-version tags to ensure deterministic builds across decomposition runs. Focused on build reliability and traceability with no user-facing bug fixes this month.
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