Your SPA was perfect at 3 developers. At 8 developers, it's a war zone.
Merge conflicts every morning. A broken Support page blocking the Cart team's release. 5-minute builds that used to take 20 seconds. And a 2.8 MB bundle that loads chart.js, leaflet, and xlsx on the homepage — where nobody needs them.
Sound familiar?
I just published a deep-dive comparing SPA and Micro Frontend architectures with 15 real code blocks showing both approaches side by side:
What you'll see:
→ SPA webpack.config.js vs MFE webpack.config.js (Local AND Production — they're different)
→ SPA routing (all routes in one file) vs MFE routing (lazy-loaded remote apps)
→ SPA deployment (one build, one deploy, one bottleneck) vs MFE deployment (30-second independent builds)
→ SPA bundle problem (2.8 MB all upfront) vs MFE targeted loading (150-300 KB per MFE)
→ React Host (ModuleFederationPlugin) vs Next.js Host (NextFederationPlugin) — the config is NOT the same
→ Turborepo pipeline for parallel MFE builds
→ 4-step strangler migration pattern from SPA to MFE
This isn't "MFE is better than SPA." I show you exactly when SPA is the RIGHT choice (small team, single domain, fast MVP) and when MFE becomes necessary.
Every code block is from a production system with 7 MFEs running on independent ports.
Read the full comparison:
https://blog.srinudesetti.in/micro-frontend/fundamentals/micro-frontend-vs-spa
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