The hottest Real-time Substack posts right now

Sophisticated prompt templating and providing context can improve responses from language models.
Embeddings represent things as vectors in a multi-dimensional space for comparison and similarity.
Bytewax framework can help create a real-time embedding pipeline for processing and storing data in a vector database.

WebSockets are still popular and widely supported, making them essential for real-time communication between servers.
Building WebSocket-driven web applications is straightforward with major web frameworks, but server-to-server connections can be more complex and require custom solutions.
Using AnyCable can simplify the integration of WebSocket services, allowing for custom protocols, sophisticated data processing, and serving as a bridge between servers.

The post explores building a new Rails 7 application with features like `--css=tailwind`, Turbo Frames and Streams, and configuring AnyCable with JWT authentication and speedy streams.
The screencast series 'AnyCasts' covers real-time web app development using Ruby and other languages, alongside Hotwire and Stimulus Reflex.
Resources include the Rails 7 release announcement, Turbo Frames documentation, AnyCable blog, and plugins like AnyCable Rails JWT for JWT identification in AnyCable.

AnyCable v1.2 introduces JWT identification and 'hot streams' for powering up efficient Hotwire frontends by moving functions from Ruby to Go.
JWT identification standardizes authentication for WebSockets, protects from cross-site WebSocket hijacking, and boosts performance by removing the need for RPC calls.
Combining JWT identification with signed streams in AnyCable allows the creation of subscriptions without touching RPC, offering improved efficiency for Hotwire and CableReady functionality.

Real-time analytics systems can be classified into four groups based on five dimensions
Not all real-time analytics systems are created equal in design
Exploring the various faces of real-time analytics is crucial for understanding their differences

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