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🌐 dev.toSource
https://www.youtube.com/watch?v=XeFqLDL4lVA Bearer token. Access token. ID token. Session cookie. OAuth. OIDC. JWT. API key. You open the auth docs and they throw ten words at you. It feels like ten things. It's four. Here they are. Every auth system starts with the same question
🌐 dev.toSource
https://www.youtube.com/watch?v=RKX0PpFn_Bg You have a database on one server. A few hundred users, everything's fast. Then your app takes off. The server's maxed out. So you add more servers — but now which server stores which data? The obvious answer: hash(key) % num_servers. C
🌐 dev.toSource
https://www.youtube.com/watch?v=fY-pGkrLXg4 You're building a RAG app. Your team says: Postgres for the data, Pinecone for the vector search. You nod — because that's what you always do, one database per job. Here's the thing nobody tells you up front: Postgres is the database th
🌐 dev.toSource
https://www.youtube.com/watch?v=OsyKxWxGtiI Your API returns a user. Three fields — an ID, a name, a bit for active. That exact payload, as compact JSON, is forty-one bytes on the wire. As protobuf, it's twelve. But compactness is the least interesting thing about protobuf. The r