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📰 Dev.to · Alex Radulovic

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We Spent Days Fighting a Zebra Card Printer. So You Don't Have To.

Dev.to · Alex Radulovic 🔧 Backend Engineering ⚡ AI Lesson 6mo ago

We Spent Days Fighting a Zebra Card Printer. So You Don't Have To.

We open-sourced a bridge for Zebra ZC350 card printers after losing far too much time to SDK quirks, silent failures, and one very confusing virtual smart card

I added userId and transactionId to every console.log without refactoring

Dev.to · Alex Radulovic 🔧 Backend Engineering ⚡ AI Lesson 8mo ago

I added userId and transactionId to every console.log without refactoring

Fix JavaScript logging spaghetti with two lines of code. Add context to every log automatically using AsyncLocalStorage—no refactor required.