A lot of ink has been spilled about configuration file formats. Popular formats like JSON, TOML, YAML, and XML each have their advantages and drawbacks. There's an alternative that should be receiving more attention: Typescript!
Infinite scrolling on dynamic collections poses a challenge to data consistency. This article describes approaches for guaranteeing there are no duplicate items while still enabling the benefits of caching.
Ask any software team, and they’ll tell you that testing is an important part of their development process. With early stage products there’s usually only a few key workflows and testing them manually doesn’t take much time. But as the product becomes more complex, and as the stakes get higher with more and more users depending on the product, what once was a straightforward process becomes anything but.