Frontend Architecture Decision making and checklist

Before getting started with the Architecture planning for a Front end development of a project. Things to be sure and Architect the code base accordingly
Here is the checklist to worth looking in to.

** This is the first set of thoughts **

1. Responsiveness (Web, Mobile etc) Multi-Browser support (chrome, firefox, safari with versions) Is IE Support required?
   1. Feature flagging (A/B testing of a set of features for user groups based on location etc before releasing to all) https://dzone.com/articles/feature-flag-driven-development
   2. Role-based access
   3. SEO - Server-side rendering
   4. PWA - Mobile Web (Offline first, Network first)
   5. Realtime data sync - Is realtime data syncing is required, in that case, we can think of Web socket or any other approach.
   6. Security - What are the security measures to be considered
   7. Internationalization
   8. Accessibility - Accessibility is the practice of making your websites usable by as many people as possible.
   9. Performance first - https://medium.com/yld-blog/performance-driven-development-c7fc030cc060