[Next.js] Runtime env injection Learn how to set environment variables in Next.js after build time. We introduce how to install cross-env and modify scripts that even Windows users can easily follow. It can be effectively used for setting various environment variables such as local, de
[React Hook] useState This document provides a detailed explanation of why React's useState hook re-renders the entire component during re-rendering, how to preserve values, and the internal implementation structure. By analyzing the ReactFiberHooks.js code, you can understand
[Observability] Vector, the log collector challenge Vector, a log collection and processing tool developed by DataDog, is written in Rust, making it easier to write log conversion code than Otel, and supports integration with Loki in Kubernetes environments using Helm. However, it can be difficult to use d
