Building a scalable app!

Some points:

1. Keep feature flag for new features
   1. Ramp it from low percentages to capture early failures like 1% – 5% – 20% – 50% – 100%
   2. This reduce failure impact
2. Seperate concerns
   1. Understand responsibilities
   2. Delegate to respective owners – Analytics, Payment, Network
3. Abstract modules: Define 2 modules – public and internal
4. Release nightlies
5. Add UI tests, catch them in CI
6. Build dashboards to measure, monitor impact