#88: KIBO UI Blocks, Zod 4, API Validation, FastAPI + Next.js, Dependency Inversion, Vercel Blob

Next.js Server Actions are public-facing API endpoints – Provides an in-depth look at the security implications of using Server Actions. The main takeaway is that they are still public endpoints and still require proper authentication and authorization to prevent unintended access

JUST FUCKING USE REACT – A fun and interesting read on why modern frameworks like React are preferable to pure HTML for complex web projects

Four solutions to Next.js timeouts: – from Vercel’s new Fluid compute to using Durable Functions, this blog post will save you from the infamous FUNCTION_INVOCATION_TIMEOUT error when deploying your application.

Robust Data Fetching Architecture For Complex React/Next.js Apps – Managing data in React and Next.js can get complicated as apps grow. The author recommends a three-layer approach: server components for initial loads, React Query for caching, and optimistic updates for fast UI feedback

Handling Authentication and Authorization with FastAPI and Next.js – Here is something for the 5 Python developers subscribed to this newsletter 😄. The article explains how to set up secure authentication and authorization in a full-stack app using FastAPI for the backend and Next.js for the frontend

► This Next.js Data Fetching Pattern Is CRITICAL For Every Developer – Demonstrates how to begin the data request on the server, send the promise to the client, and use the use hook for efficient data loading. Also explains how to use context to make the data available to multiple components

Dependency Inversion in React: Building Truly Testable Components – Explains how using the Dependency Inversion Principle in React can reduce tight coupling in your components

Kibo UI Blocks – Kibo UI now offers blocks for advanced use cases such as AI chatbots, real-time collaborative canvases, and project roadmaps, along with hero and pricing sections

Introducing Zod 4 – Zod 4 is now stable. New features include first-party JSON Schema support, enhanced recursive type inference, and a new way to add metadata. Zod 4 also introduces a lightweight “Mini” version for strict bundle size requirements

oRPC v1.3.0 – Introduces message port support for easier communication across browser windows, tabs, and processes. Also comes with multiple success response handling and new utilities for working with form data

next-validations – Next.js API route validation with Zod

► The Story of Concurrent Rendering in React – Amazing video by the folks at UI.dev. Learn about the technical challenges the React team faced before releasing version 18 and how features like useDeferredValue and startTransition work

VS Code: Open Source AI Editor – VS Code is making its Copilot Chat extension open source under the MIT license and will move its AI features into the core editor

CSS Transforms – Emil explains how translate, scale, and rotate work, with practical examples from their libraries like Sonner and Motion. They also cover best practices, such as using percentages for translateY() and combining scale with opacity for smoother effects

Vercel Blob is now generally available – Vercel Blob is now production-ready and offers pricing that matches AWS S3