MJ Stories
Mobile craftsmanship stories
A batch upload can return HTTP 200 while an operation inside it failed, and a sync connector must acknowledge those failures or wedge its queue. So data can vanish with everything reporting green. 'Success' is a per-operation outcome your transport cannot report for you: you have to build a channel to hear the failures you actually care about.
Series · 5 parts
Offline-First KMP
When your mobile app must work without internet as a standard, not an edge case, the sync layer is just the first decision. What comes after — preserving user intent offline, trusting a "success" your server never actually confirmed, resolving conflicts as a human decision — is where offline-first actually gets hard. Field notes from a production KMP winery app.
More Stories
Your API key is not a secret
We have been hiding API keys in Android apps for a decade — with BuildConfig tricks, NDK, obfuscation libraries. None of it works. The fix is not better hiding; it is treating the key as a public identifier and proving the app is genuine instead.
Share iOs string resources with Android
There might be a requirement for mobile string resources to be defined or adjusted by management or copywriters. There also might be a requirement to add localization later by those roles. And on top of that strings should be synced across platforms.