During May 2026, contributed to two Opetushallitus repositories by delivering features focused on code quality and developer workflow improvements. In the aoe repository, enhanced maintainability by standardizing error alarm naming and clarifying smoke test scripts, while updating the root .gitignore to reduce repository clutter from editor-specific files. For the valtionavustus repository, improved the local development experience by reorganizing tmux windows and labeling panes according to running services, streamlining developer workflows. These changes demonstrated effective use of Git, shell scripting, and tmux configuration, resulting in cleaner collaboration signals, easier onboarding, and a more organized development environment without introducing new bugs.