Alex Sidorenko

@asidorenko_ • 35,147 subscribers

I make videos for devs

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Live Cam

Alex Sidorenko

Shorts

Be careful when browsing with agents

How to enable 1m context window in Codex

Suspense tab in React Devtools

Vercel bill optimization tip: Do not host large files from "/public" folder in Next.js

Codex app/T3 Code/Conductor should copy the file panel from Cursor Glass New agentic IDEs still need a file view, even if a simplified one. Opening another app for this is too much friction. Cursor nailed the ux imo

When the parent state changes, React recursively re-renders all children, but there is a nuance. Writing an article about it.

"All my Next.js pages are marked as dynamic even though some are static." Likely cause: auth check in root layout

Typed routes are stable in Next 15.5

"My Suspense fallback doesn't show up" Make sure you fetch data in the component you suspend.

transitionType prop for Links in Next.js 16.2 (requires additional setup for &lt;ViewTransitions /&gt;)

"Navigation feels slow in Next.js" Use loading.tsx instead of Suspense when possible

How to hide Tailwind classes in VS code

In Next.js, everything that gets IMPORTED into a file with "use client" gets into a client bundle

Delete unused node_modules with npkill

How to differentiate page.tsx tabs from Next.js in VS Code?

Next.js automatically determines width and height for imported images

See all the places your React component is used in VSCode with referencesCodeLens

How to improve the visibility of the usage limits in Codex CLI

Partial rendering in Next.js 13. "Only the route segments that change on navigation re-render on the client, and any shared segments are preserved"

Server actions in Next.js execute sequentially

Videos

Watch Anya Live

What happens to your codebase when you stop reviewing your agents' output

frontend-design skill

Skill atrophy with coding agents

"How can I use react-best-practices skills?" Codex example 👇

SEO audit skill

"Navigation feels slow in Next.js" Try cacheComponents 👇

Prop drilling? Sometimes all you need is a little restructuring.

HTTPS localhost with Next.js

Next.js preserves client state on the page during navigation when cacheComponents is enabled

Remotion Skills

Setting a cookie in server action automatically re-renders the current page and its layouts in Next.js

shadcn/create is so good

How to define a custom subagent in Codex

VS Code (Copilot) vs Cursor (claude-3.5-sonnet) for Next.js App Router

"How can I reduce prefetching (to optimize hosting bill) without sacrificing navigation speed too much in Next?" Try prefetching on hover

ESLint rule to detect redundant state in React

React compiler in Next.js 15

You can remove all console calls from prod in Next.js

Modal with parallel routes in Next.js (without intercepting)

Synchronizing React with browser API

transitionType prop for Links in Next.js 16.2 (requires additional setup for <ViewTransitions />)