February 2025 monthly summary for aiida-core focusing on CI/CD reliability improvements and test stability. This period delivered two critical fixes across the repository aiidateam/aiida-core: 1) CI/CD - Docker ARM builds reliability: fixed ARM Docker image builds by updating QEMU/binfmt in GitHub Actions to a specific tonistiigi/binfmt image version, including a workaround for known issues, ensuring successful ARM image builds and reducing CI failures. Commits: c4dfadabfa3183118bbbc416307529f50ebc9fd0. 2) Test suite stability - isolate tests to prevent flakiness: ensured clean database state for test_input_and_create_links and replacing aiida_profile with aiida_profile_clean to guarantee isolation between test runs. Commits: 4d374f465808fe64d30ef89679b820169ffd3f74. Overall impact: more reliable CI pipelines, faster feedback cycles, especially on ARM runners; reduced flaky test execution; foundation for more robust cross-platform releases. Technologies/skills demonstrated: Docker, GitHub Actions, QEMU/binfmt, tonistiigi/binfmt, xdist, database isolation strategies, test reliability engineering. Business value: reduces CI noise, accelerates release readiness, and increases confidence in ARM builds and test results.

January 2025 monthly summary for aiida-core and aiidalab-qe focusing on delivering business value through CI/CD reliability, dependency compatibility, and containerized deployment improvements. Key outcomes include stable test pipelines, API-alignment with dependencies, and streamlined environments for QE codes and pseudopotentials.