Every application starts small. One server, one database, one backend. Everything runs beautifully. Your APIs respond in milliseconds, deployments are simple, and debugging is straightforward.
Then your product starts growing.
A few thousand users become tens of thousands. Suddenly, one feature going viral means your entire application slows down. Database connections get exhausted, servers start running at 100% CPU, and a single deployment feels like walking on a tightrope.
This is usually the point where developers hear the term Distributed Systems.
And honestly, it sounds way more intimidating than it needs to be.
