The concept of "digital sovereignty" is often discussed in the context of data privacy and user control over personal information. However, a recent post by @astrra.space raises a more fundamental point: the ability to reverse engineer and maintain one's own software as a form of ultimate user agency. This perspective reframes reverse engineering not as a niche technical skill, but as a crucial component of digital sovereignty. By dissecting and understanding the software we use, we move from being passive consumers to active participants in our digital environment. This is not merely about fixing bugs or adding features; it is about asserting ownership over the tools that shape our lives. The act of reverse engineering is a declaration that we have the right to understand and modify the digital world we inhabit. It is a powerful statement against the "black box" nature of modern software, and a step towards a more transparent and user-centric digital future.