13. MacSurf 1.68 – NetSurf on OS 9 Released (github.com)

MacSurf 1.68 β€” "macQJS"
A native web browser for Classic Mac OS (PowerPC, Mac OS 9.1–9.2.2), with real HTTPS and a modern JavaScript engine β€” no proxy, no companion machine.
Verified on: Power Maci...

24. C++ Details of Asymmetric Fences (nekrozqliphort.github.io)

Asymmetric Fences? While browsing through Folly’s synchronization primitives to study up on concurrency concepts, one familiar-looking name in the codebase caught my attention: Asymmetric Thread Fence. I already knew what std::atomic_thread_fence is meant to achieve, but what does this construct do? And what exactly is asymmetric about it?

25. A 2048-spin bulk acoustic wave Ising machine for number partitioning and Sudoku (arxiv.org)

Optical coherent Ising machines based on time-multiplexing have demonstrated significant progress in terms of connectivity and spin scalability. However, they are constrained by large physical footprints, high power consumption, poor thermal stability, and high cost. Here, we present a time-multiplexed Ising machine leveraging propagating wave packets in solid-state delay lines at microwave frequencies, enabling thermally stable, robust, low-power, tabletop, and affordable design. We use two serially connected 20.5 MHz, 707 ΞΌs bulk acoustic wave delay lines supporting 2,048 spins. Our design provides all-to-all connectivity with 15-bit coupling resolution and finds approximate MAX-CUT solutions in 341 ms, potentially scalable to sub-ms by using higher frequency delay lines. Additionally, we demonstrate solutions to number partitioning and Sudoku problems. Compared with state-of-the-art Coherent Ising machines, our machine exhibits four orders of magnitude higher thermal stability. Against the simulated bifurcation algorithm, our design achieves comparable results on the MAX-CUT problem, while outperforming it on the more complex number-partitioning and Sudoku problems.

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