Last week, we role-played designing a chat system like WhatsApp from scratch. Today I also published my version of designing such a system and discussing the trade offs, scaling phase, disaster recovery, etc. Grab a cup of coffee and enjoy as it's 1.5h long 🙂

Next AI tool that we explored is Claude Code, how it differs from Cursor and how to use it in the terminal and with the extension with best practices, MCPs, Connectors and more. You can watch the recording below. In the next sessions we'll cover MCP servers in more detail and some RAG system examples. By the way, which tool do you use daily/often? 👇

Hey team! 👋 I've completed the Google Authentication with Firebase implementation for task #15 🎉 PRs ready for review: - Frontend: https://github.com/DeveloperMastery/fintrack/pull/54 - Backend: https://github.com/DeveloperMastery/fintrack-api/pull/17 - Task: https://github.com/orgs/DeveloperMastery/projects/1/views/6?pane=issue&itemId=131627232&issue=DeveloperMastery%7Cfintrack-api%7C15 What's been done: ✅ Firebase Auth integration (Google Sign-In) ✅ Users can now sign in with their Google account ✅ Backend verifies Firebase tokens and manages users in MongoDB ✅ Classic auth (email/password) still works as before Both authentication methods work seamlessly together. Ready for review! 🚀 PS: It's currently set up with my local Firebase project, so if you want to test locally, you'll need to add your own Firebase credentials to the .env files.

For those of you who joined our Emergency Meetings, I'd love to hear about your experience. Was it valuable for you? And which part did you like the most? Your feedback will help us make these even better for everyone! P.S. What's a better name for these sessions? 👇

Hey team! 👋 I'm starting work on the GraphQL API https://github.com/orgs/DeveloperMastery/projects/1/views/6?pane=issue&itemId=131626259&issue=DeveloperMastery%7Cfintrack-api%7C11. Before diving in, I have a few questions to make sure I build this right: - 1. Are we replacing the REST API or running GraphQL alongside it? - 2. Which entities should be exposed via GraphQL? (Users, Transactions, Budgets, Categories, etc.) - 3. Should GraphQL run on the same Express server or separate? - 4. Keep current Firebase + JWT auth or migrate to GraphQL-specific auth? - 5. Any preference on library? (Apollo Server, express-graphql, etc.) Let me know so I can plan the implementation properly! 🚀