During June 2025, this developer contributed to the rh-writers/BUT-technical-writing-course-2025 repository by building and refining onboarding and instructional documentation. They authored a new Boiling Water Tutorial in Markdown to expand practical exercise content and overhauled the Introduction.adoc file, providing structured guidance for aspiring technical writers with a focus on accessibility, readability, and minimalism. Their work included updating contributor attribution and cross-referencing in About_APEs.adoc using adoc, as well as enhancing clarity and language in How_to_become_TW.adoc. The developer demonstrated depth in technical writing and documentation, prioritizing content discoverability and onboarding effectiveness through thoughtful structure and precise language.