Deep-dive articles on building robust fintech back-ends.

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The BEAM virtual machine uses isolated processes (gnomes) with private memory instead of shared state, fundamentally different from OOP's tightly-coupled machines. Each process owns its heap, communicates via message passing, and fails independently without corrupting others. This architecture enables millions of concurrent workers through per-process garbage collection, reduction-based fair scheduling, and the "let it crash" philosophy where failures stay contained. Code lives separately from state in shared modules, allowing hot code swapping and cheap process spawning.

The Gnome Village