OverlyComplicatedTODOApp.md

System Analysis

• Requirement gathering
• Project documentation (diagrams, use-cases...)

Front-end

• UX
• Mobile first
• Responsive design

JavaScript

• React
• Unit testing with React
• Design patterns
• LocalStorage and/or IndexDB

important: define the routes and APIs beforehand

CSS

• pure CSS
• LESS

Back-end

• Web security (CORS in the HTTP Server, CSRF, password hashing, etc)
• UTF8 compliance
• Timezones (oh boy, here we go)
• Webhooks of some kind
• Design patterns (MVC, Microservice oriented programming)
• Redis

Microservices

• one in Python
• another one in Spring-boot

Database

• SQL (PostgreSQL)
• DB Security (users, grants, backups)
• DB Tunning (indexes, views, initial configuration, etc)

DevOps

• Ansible
• Docker (security problems?)
• Linux server (+ security issues)
• Nginx
• HTTPS
• CDN

Mobile App

• Cordova

Dektop App

• Electron

Misc.

• Design patterns (such as MVC)
• Regex
• Functional programming
• Algorithms (complex data structures, Big O notation)
• Unit testing
• Integration testing
• Internationalization (i18n)