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●GPT-6.1 SOL — Added to Rork's model menu (09-29) with Low, Medium and High effort; included on Pro and Max●SONNET 5.5 — Claude Sonnet 5.5 is selectable: strong at UI design and faster than Sonnet 5 (09-28)●SDK 58 — Beta since 09/15 with no stable date yet; running projects in Expo Go has required login since 09/03●WIDGET — A write-up traces an iOS widget that renders black only in production builds●OBSERVE — EAS Observe now records native crashes too (SDK 57.0.21 or later, 10/07)●NEW — My App Open Ad Only Showed When the App…●GPT-6.1 SOL — Added to Rork's model menu (09-29) with Low, Medium and High effort; included on Pro and Max●SONNET 5.5 — Claude Sonnet 5.5 is selectable: strong at UI design and faster than Sonnet 5 (09-28)●SDK 58 — Beta since 09/15 with no stable date yet; running projects in Expo Go has required login since 09/03●WIDGET — A write-up traces an iOS widget that renders black only in production builds●OBSERVE — EAS Observe now records native crashes too (SDK 57.0.21 or later, 10/07)●NEW — My App Open Ad Only Showed When the App…
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wallpaper apps

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◇ App Dev/2026-08-24Advanced

I Moved the Thumbnails Assuming the Shipped Build Would Keep Asking for the Old Path

Reorganizing image directories on the server does not reach the builds already installed on people's phones. Here is the two-way fallback that returns 200 for both the old and new paths, the ordering rule for images versus catalog, and the four checks I run through a CDN before calling a release live.

⟐ Business/2026-06-02Intermediate

What Localizing My Wallpaper Apps' App Store Listings Taught Me — Translation Isn't the Hard Part, Being Read Locally Is

Field notes from localizing my wallpaper apps' App Store listings across many locales: where literal translation fell short, where the keyword field and screenshot copy actually moved the needle, and how I now prioritize localization as a solo developer.

◇ App Dev/2026-05-29Intermediate

Three Weeks of Syncing Release Notes Across Six Wallpaper Apps

Notes from three weeks of writing What's New entries for six wallpaper apps in the same week, with the same tone, using Rork as the source of truth.

⟐ Business/2026-05-25Advanced

How I Layered Rewarded, Interstitial, and App Open Ads to Lift ARPDAU 1.4× on My Wallpaper App

Optimizing AdMob's three formats individually hit a ceiling — they were eating each other's impressions. After redesigning Rewarded, Interstitial, and App Open as a coordinated 3-layer system with strict role separation and an exclusion gate, ARPDAU climbed 1.4× over nine weeks. The full playbook, code, and weekly numbers.

⬡ Rork Dev/2026-05-25Advanced

iOS Memory Pressure on Rork Apps — A 5-Tier Release Architecture from 12 Years of Wallpaper Apps

A 5-tier memory release architecture for Rork-built iOS apps, refined while running wallpaper apps to a cumulative 50 million downloads. Includes the Instruments + MetricKit measurement flow that brought OOM rate from 4.3% to 0.36%.

⬡ Rork Dev/2026-05-24Intermediate

Rolling Out Privacy Manifest to Six Wallpaper Apps in Parallel — Translating One Rejection into Five Clean Submissions

Operational notes from rolling out Privacy Manifest to six iOS wallpaper apps in parallel. How a single rejection on the first submission shaped the remaining five, and how phased release rings were designed for a UI-less update.