Dev shares PWA lessons from building a 31-city map app in South Korea

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A developer has published key takeaways from shipping a real-world Progressive Web App covering 31 cities in South Korea. The project used Vite SSG over a standard SPA setup, as Naver's web crawler does not fully render JavaScript, hurting local SEO. Leaflet with free OpenStreetMap tiles was chosen over Mapbox to avoid licensing costs, while Firebase Hosting rewrites enabled clean deep URLs without a backend. KakaoTalk sharing integration was flagged as essential for the Korean market, accounting for over 70% of social traffic. The developer also advised against auto-prompting PWA install banners, recommending a passive discovery approach instead.

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