lassiecoder | mobileAppDev

6+ years building mobile & web apps
Author of AI + Gemini for Web Devs:

[lassiecoder | mobileAppDev @lassiecoder]

I built an open-source CLI tool called RN Build Doctor to help diagnose build failures and crashes using project configuration and build logs.

If you're still running into similar issues, I'd love for you to give it a try and share feedback on whether its diagnosis is useful.

🔗 https://t.co/8J80L6b2Ly

#ReactNative #Expo

[lassiecoder | mobileAppDev @lassiecoder]

Me estimating a feature: 2 days

The feature: 2 days
iOS code signing: 1 day
Android build failing for no reason: 1 day
“Works on my machine”: 3 hours
App Store review: 4 days

#devlife

[lassiecoder | mobileAppDev @lassiecoder]

@betomoedano The early stage of getting better is mostly noticing. It feels like failing, but it’s really the first time you can see clearly.

[lassiecoder | mobileAppDev @lassiecoder]

@huamanraj Indeed

[lassiecoder | mobileAppDev @lassiecoder]

Balcony blooms 🌸✨

[lassiecoder | mobileAppDev @lassiecoder]

A week ago I shipped a small tool for something that kept eating my evenings: scrolling through React Native build logs to find the one line that actually broke.

rn-build-doctor crossed 250+ downloads in its first week.

#ReactNative #Expo

[lassiecoder | mobileAppDev @lassiecoder]

@Timicoding 🫶

[lassiecoder | mobileAppDev @lassiecoder]

Unpopular opinion: most React Native apps don’t need a fancy state library.

They need fewer network requests.

[lassiecoder | mobileAppDev @lassiecoder]

Didn’t know this, checked after your comment. Versions live for under an hour still got ~15 downloads each BUT 71 unique cloners in 14 days is what I see as traffic.
Thanks! 🙌

[lassiecoder | mobileAppDev @lassiecoder]

A week ago I shipped a small tool for something that kept eating my evenings: scrolling through React Native build logs to find the one line that actually broke.

rn-build-doctor crossed 250+ downloads in its first week.

#ReactNative #Expo

[lassiecoder | mobileAppDev @lassiecoder]

@andresmatte That says a lot about what you’re building. Small team, real developer problem, and remote 🙌

[lassiecoder | mobileAppDev @lassiecoder]

@dschewchenko @reactnative @expo @ThisWeekInReact @callstackio That was the whole idea! Thanks so much 🙌

[lassiecoder | mobileAppDev @lassiecoder]

@betomoedano Most RN devs use Metro and Hermes every day and couldn't explain what either one actually does. This series is going to fix that for a lot of people. 🙌

[lassiecoder | mobileAppDev @lassiecoder]

Shipped 0.1.6 this week after breaking real RN 0.87 and Expo SDK 58 apps on purpose: 'RCTBridge.h' not found, the AGP 9 Kotlin clash, Windows 260-char paths.

Send me a log it doesn't catch, that's how it gets better.

https://t.co/PExAd7ofIe

[lassiecoder | mobileAppDev @lassiecoder]

What it does: you pipe in a Gradle, Xcode, Metro, EAS or logcat log, and it points to the real error, shows the lines that prove it, and suggests a fix.

Runs offline. If it doesn't recognize the error, it says so instead of guessing.

npx rn-build-doctor analyze build.log

[lassiecoder | mobileAppDev @lassiecoder]

Proof that good things take time 🌱

[lassiecoder | mobileAppDev @lassiecoder]

@G_Moskaliuk Amazing, thank you! Following along for the rest of the series 🙌🚀

[lassiecoder | mobileAppDev @lassiecoder]

I built an open-source CLI tool called RN Build Doctor to help diagnose build failures and crashes using project configuration and build logs.

If you're still running into similar issues, I'd love for you to give it a try and share feedback on whether its diagnosis is useful.

🔗 https://t.co/8J80L6b2Ly

#ReactNative #Expo

[lassiecoder | mobileAppDev @lassiecoder]

PHP, Node.js, GitLab and an Indian certificate authority, all in the same week.

AI is finding bugs that sat unnoticed for years, and attackers are moving within days.

Patching is no longer a 'next sprint' task.

[lassiecoder | mobileAppDev @lassiecoder]

Security used to be a yearly audit. Now it's a weekly habit. This week proved it.