Welcome to QAFlow! Ask questions and get answers from our community.
74
votes
6
answers
How to reduce AWS bills without sacrificing performance?

Our monthly AWS bill hit $25k. Already use Savings Plans. Looking for next-level cost optimizations - Graviton, Spot instances, Aurora Serverless expe...

1.1K
Administrator asked Apr 14, 2026
4
votes
8
answers
How often should I rotate API keys and secrets in production?

We currently rotate quarterly. Seen recommendations ranging from monthly to yearly. What is the practical balance between security and operational ove...

1.2K
Administrator asked Apr 14, 2026
80
votes
5
answers
How to properly handle authentication in a Next.js 15 app with server actions?

Looking for best practices on storing JWT tokens, refreshing sessions, and protecting server actions. Should I use NextAuth or roll my own with iron-s...

790
Administrator asked Apr 14, 2026
52
votes
3
answers
How to handle imbalanced datasets in classification problems?

My fraud detection dataset is 99.5% legitimate transactions. SMOTE made things worse. What techniques actually work in production?

941
Administrator asked Apr 14, 2026
45
votes
2
answers
What are the must-have VS Code extensions for a full-stack developer in 2026?

New to VS Code after using Sublime Text for years. Looking for extensions that actually make me more productive, not just nice-to-haves.

971
Administrator asked Apr 14, 2026
5
votes
3
answers
Jetpack Compose performance issues with long LazyColumn

My LazyColumn with 500+ items has janky scrolling on mid-range Android devices. Already using `key` and `stable` annotations. What else should I check...

1.1K
Administrator asked Apr 14, 2026
16
votes
0
answers
SwiftUI vs UIKit for a new iOS app in 2026 - which to choose?

Starting a new iOS app targeting iOS 17+. SwiftUI seems more modern but I worry about maturity. What are the real pain points you have hit in producti...

1.1K
Administrator asked Apr 14, 2026
76
votes
6
answers
Kubernetes vs Docker Swarm for a small team of 5 engineers

We have 15 microservices and a small DevOps team. Is Kubernetes overkill? Would Docker Swarm or Nomad be a better fit for our scale?

710
Administrator asked Apr 14, 2026
74
votes
4
answers
When should I use PostgreSQL JSONB vs a separate table?

Designing a schema with semi-structured data. JSONB looks flexible but I worry about query performance. What are the real tradeoffs?

739
Administrator asked Apr 14, 2026
30
votes
7
answers
Preventing SQL injection in 2026 - is ORM enough?

Team uses Prisma for all DB queries. Is that sufficient protection or should we add additional WAF rules and input validation?

921
Administrator asked Apr 14, 2026