The article tests the capabilities of a $4 VPS by running a simple CRUD application and performing load testing using K6. The test results show that the VPS can handle a significant number of requests, but the CPU load increases rapidly and reaches 100%. The article concludes that a cheap VPS might be sufficient for small projects, but may not be suitable for larger applications. The test has limitations, such as not simulating real-world networking overhead and complex business logic.