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Systems

Deterministic State: How Nordic Rail Interlockings Prove Two Trains Cannot Meet

Before a high-speed passenger set clears a single switch outside Gothenburg, boolean interlocking equations evaluate 1,800 track-circuit invariants in under forty milliseconds.

Systems

SQLite on the Factory Floor: Local-First Telemetry When the WAN Goes Dark

Why precision CNC job shops are replacing fragile cloud-only MES dashboards with write-ahead-logged SQLite files on fanless industrial PCs—and syncing upstream on their own schedule.