Developer builds cross-device clipboard app, battles Android OS limits and distributed systems complexity

A developer created ClipboardX to solve a personal frustration of manually transferring text between an Android phone and a Windows PC via messaging apps. Android's background process restrictions blocked the original design, forcing a pivot to embed clipboard access inside a custom keyboard. Building the keyboard nearly derailed the project until the developer adopted an open-source keyboard foundation and focused only on clipboard-specific features. Once Android and Windows could communicate, deeper reliability challenges emerged around message delivery, retries, deduplication, and reconnection handling. What began as a simple side project ultimately evolved into a small distributed systems problem requiring robust state management and observability.