Notes from building software in production.
Field notes from our engineering team — the trade-offs, bugs and patterns we hit while shipping Django, Next.js and Flutter in production.
next.js
Next.js App Router in Production: What Nobody Tells You
Server Components, streaming SSR, and the new caching model sound great in docs — but here are the race conditions, hydration mismatches, and layout shift bugs we hit in a real e-commerce project.
TY
Tech Yugantar — Engineering Team
2 Nov 2025
Read time
6 min
next.js
Next.js ISR + Webhooks: The Content Architecture Behind Fast Storefronts
How we reduced page build times from 22 minutes to 38 seconds for a 90,000-product catalogue using On-Demand ISR, edge caching, and a webhook fan-out pattern with Redis.
TY
Tech Yugantar — Engineering Team
15 Jul 2025
Read time
6 min
next.js
Securing Next.js APIs: JWT, Middleware Edge Auth & CSRF in One Stack
Edge Middleware intercepts before your lambdas even wake up. We detail our layered auth model — httpOnly cookies, JWT rotation, PKCE OAuth flow, and rate-limiting at the CDN edge with Upstash.
TY
Tech Yugantar — Engineering Team
4 May 2025
Read time
6 min