As the opening article of this series, I clarify my purpose and background for writing it and explain why I chose to focus on technical sharing about online document and spreadsheet systems. I review my accumulated project experience and emphasize that the content is intended for readers with varying levels of expertise. Through this article, I hope readers can understand the starting point of my writing and prepare for the upcoming content, while also organizing and summarizing years of technical work experience. This article lays a foundation for deeper technical discussions and helps readers grasp the positioning and direction of the entire series.

This article outlines my reasons for starting a blog and my journey so far. I aim to document my growth, share systematic insights into technology, and build my personal brand. The article reviews the challenges I faced in building the blog, including my experiences with HEXO, FLASK, and HALO. Ultimately, I decided to restart the blog to showcase professionalism, share development experiences, and record personal thoughts and achievements.