Tensor is the might
Summary
Long-form technical article detailing a complete, header-only tensor library written in C, covering tensor data structures, strides, CPU/GPU backends (Metal), and basic autograd concepts. It includes concrete code samples for shapes, index calculations, and elementwise operations, plus a practical MNIST example and discussion of performance trade-offs and future improvements. Useful for developers exploring low-level ML infrastructure and open-source tensor tooling.