RGRafał Gawlikindev-node.hashnode.dev·Jun 10 · 5 min readSharing 80% of Code Across iOS and Android with Kotlin MultiplatformWhen you're one developer building a real product for two platforms, the math is brutal: two codebases, two languages, twice the bugs, half the speed. For FamilyJar — a budgeting app for couples — I d00