Building a portfolio dashboard in Google Sheets sounds like a weekend project. Then you realize that the built-in spreadsheet functions only go so far, the data you actually need is not available through any official API, and every workaround you try either breaks silently or stops working after a few days. That gap between what you can see on a financial website and what you can reliably use in a spreadsheet is where most self-built dashboards stall. This post is about why t