Saving Marp Slides from a Next.js App for Offline Use
From running the existing Marp viewer offline to fixing what deployments, networks, and the presenter window exposed along the way.
15 POSTS
Nextjs 1
Pages You Leave Don't Die, They Hide: Next.js cacheComponents and React Activity
Next.js 16's cacheComponents hides the pages you leave with React Activity instead of unmounting them. Following a three.js canvas that went blank after a back navigation, I read the router, React, and react-three-fiber source and reproduced it in a browser.
โ Service Worker Caching Deep Dive ยท Part 2Applying Service Worker Caching: App Router Traps and GA4 Field Data
Armed with the theory from Part 1, I made this blog (Next.js App Router) open offline. On the first deploy, the post I had just read would not open offline; on the second, posts opened but every image was broken. This is a chronicle of fixing, one deploy at a time, the traps created by soft navigation, prefetching, and next/image, and a record of settling the results with GA4 real-user data. Returning-visitor FCP improved by 634ms on average, while TTFB worsened by 525ms on average. The second post of the Service Worker Caching Deep Dive series.
Next.js Turbopack Turned One Singleton into Two: A Scope Hoisting Bug and a Circular Import
In a Next.js 16 Turbopack production build, a module-scope singleton became two live instances at runtime. Inside the same synchronous block, one condition contradicted the other, and responses that arrived in 30ms still timed out. This is the record of tracing the cause through the bundle output: a partial scope hoisting merge, a circular import, an upstream bug that had already been fixed, and the single-variable experiment I ran too late.
โ Directive Deep Dive ยท Part 3'use cache' Directive Deep Dive: To the End of Cache Boundaries
Build-time transformations, cache key serialization, ResumeDataCache, cacheHandler, and Cache Components - everything created by a single 'use cache' line
โ Directive Deep Dive ยท Part 1'use client' Directive Deep Dive: To the Edge of Client Boundaries
Module boundaries created by a single line of 'use client', build-time transformations, Flight serialization, and performance implications
โ The State of Next.js ยท Part 5Why We Still Use Next.js
Switching costs stronger than technical superiority
โ The State of Next.js ยท Part 4Is Next.js Fast Enough?
The uncomfortable truth benchmarks reveal
โ The State of Next.js ยท Part 3Whose React Is It?
The questions React Foundation must answer
โ The State of Next.js ยท Part 2Why Cloudflare Rebuilt Next.js
What question does vinext really ask?
โ The State of Next.js ยท Part 1The Rise and Fall of Next.js Edge Runtime
Hey Edge Middleware, how have you been?
โ Directive Deep Dive ยท Part 2React Server Functions Deep Dive: To the End of "use server"
What happens behind a single line of "use server"?
A Guide to Next.js Caching
Exploring the four cache layers of the Next.js App Router
It's a React vulnerability, so why do I have to upgrade Next.js?
CVE-2025-55182, CVE-2025-55184, CVE-2025-55183, and the React hidden inside Next.js
- โ Web Service Performance Analysis ยท Part 3
Web Service Performance Analysis (3)
Thank you for your interest. ๐๐ปโโ๏ธ