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⚡ AI Lessons

Dev.to · 孫昊
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
Apple Approved My App But It Was Invisible on the App Store for 36 Hours
Apple approved my app. ASC said Ready for Sale. But for 36 hours zero App Store visibility. Here is the territory bug that causes it.

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Approved by Apple but Not on the App Store — The 0/175 Territory Trap
I shipped two iOS apps last weekend. Apple's review system approved both within 24h. Neither showed...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
The iOS Audit Sprint: What 30 Days of App Store Rejections Taught Me
I spent 30 days debugging Apple rejection patterns so you do not have to. Here is the one string that killed 4 of my first app submissions — and the $249 fix th

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Content-Led B2B: Why I Stopped Cold Emailing and Started Publishing
Cold outreach without content is a trust deficit. When I published my first technical article, the Calendly link in it converted better than 15 cold DMs. Here i

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Why 9% Reply Rates Still Book Zero Calls: The B2B Funnel Gap Nobody Talks About
Reply rate and call booking rate are different problems. Here's what the data nobody shows you about converting replies into calls.

Dev.to · 孫昊
2mo ago
Day 61: I shipped a Twitter thread to my 60-day milestone account. Here's what n
Day 60+1 retro: 4 apps in Apple queue, 6 Gumroad SKUs LIVE, revenue. The honest data after 61 days.

Dev.to · 孫昊
2mo ago
30 Days of Indie iOS, Raw Numbers — Commits, LOC, Rejects, Content, Revenue
30 days. 7 apps submitted. 4 rejection cycles. 1 expedited review. The raw numbers behind my iOS indie dev sprint.

Dev.to · 孫昊
⚡ AI Lesson
2mo ago
Managing 4 iOS Apps: The Indie Portfolio System That Actually Works
TL;DR: 9 dev.to articles, each 800-1500 words, published in ~60 minutes (with a 35-second rate limit...

Dev.to · 孫昊
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
Concurrent autoiter sessions force-pushed each other - here's the recovery pattern
I ran two AI agent sessions in parallel last week. Both operating on the same git repo. Both pushing...

Dev.to · 孫昊
2mo ago
The ASC API's 3-step review submission flow (and why appStoreVersionSubmissions is gone)
I spent yesterday automating app submissions for 4 iOS apps. Straightforward task: hit an endpoint,...

Dev.to · 孫昊
💻 AI-Assisted Coding
⚡ AI Lesson
2mo ago
How I rebuilt the Codable migration pattern across 4 iOS apps in 2 hours
I was adding a single new feature to DaysUntil: yearly-recurring events. Twenty lines of product...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How I Stacked 6 Gumroad SKUs From Free to $499 (And Why None of Them Cannibalize)
I have 6 Gumroad SKUs LIVE: $0 → $15 → $19 → $29 → $39 → $499. Catalog total $601. I shipped most of...

Dev.to · 孫昊
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
What I Shipped in 2 Hours of Autonomous Indie Iteration (Day 60 of 100)
I'm 60 days into a 100-day indie iOS portfolio experiment from Tokyo. Today I ran my AI agent (Claude...

Dev.to · 孫昊
🚀 Entrepreneurship & Startups
⚡ AI Lesson
2mo ago
How I Stacked 6 Gumroad SKUs From Free to $499 (And Why None of Them Cannibalize)
I have 6 Gumroad SKUs LIVE: $0 → $15 → $19 → $29 → $39 → $499. Catalog total $601. I shipped most of...

Dev.to · 孫昊
⚡ AI Lesson
2mo ago
I Hit dev.to's Rate Limit Mid-Batch — Here's the 35-Second Fix
TL;DR: dev.to's API allows ~1 article per 30 seconds. Trying to batch-publish 6 articles in 18...

Dev.to · 孫昊
2mo ago
Apple ASC API: Real JWT Auth + V1/V2 Path Quirks (2026 Edition)
TL;DR: 4 indie iOS apps, 600+ ASC API calls in 60 days. Here's the JWT auth code, the V1/V2 path...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
CDP vs API Publishing: Which Platforms Welcome Automation in 2026
TL;DR: Map of every platform I tested for programmatic publishing in 2026: which give you a clean...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Solving Substack TipTap CDP Publish (When Lexical Will Not Work)
TL;DR: After bashing my head against Reddit / IH / Twitter Lexical anti-bot for 2 hours, I tried the...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to Get Your First 10 Affiliates (When You Have 0 Customers)
TL;DR: Affiliate programs depend on having affiliates who'll actually share. Indie hackers without an...

Dev.to · 孫昊
2mo ago
Cold Email Open Rates 2026: What Indie Hackers Should Expect
TL;DR: 2026 cold email reality is harsher than 2024 advice suggests. Apple Mail Privacy Protection +...

Dev.to · 孫昊
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
10 dev.to Articles in 24 Hours: The Compound Effect of Indie Distribution
TL;DR: I published 10 dev.to articles in 24 hours via the dev.to API. Each ~1500 words, all derived...

Dev.to · 孫昊
⚡ AI Lesson
2mo ago
Manifest-First Indie Dev: Why I Replaced All My INDEX.md Files with YAML Frontmatter
TL;DR: I had 50+ markdown files across reports/, products/, INBOX/. Maintaining INDEX.md by hand was...

Dev.to · 孫昊
🚀 Entrepreneurship & Startups
⚡ AI Lesson
2mo ago
Indie Day 60: I Have Zero Paying Customers and It Is Fine
TL;DR: Most indie postmortems pretend everything is going great. Mine isn't. Day 60, zero paying...

Dev.to · 孫昊
📋 Product Management
⚡ AI Lesson
2mo ago
Why I Stopped Trusting MRR-is-Everything Indie Advice (60-day data)
TL;DR: Day 60 of my indie iOS experiment. The "MRR is the only metric that matters" advice is...
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