A photographer spent three hours at San Francisco's Muni Heritage Weekend 2026 using a line scan camera to photograph vintage streetcars, including the 1912 Muni No. 1, the first publicly owned big-city streetcar in the US, and other historic trams from Melbourne, Milan, and Blackpool. The resulting images, which capture the vehicles in a distinctive scanned format, have been released under a CC-By-SA 4.0 license and uploaded to Wikimedia Commons.
The author recounts struggling for years to move beyond single terminal commands, unable to chain logic like conditionals, loops, or piping output between programs. Over time they gradually learned shell scripting well enough to write basic conditional scripts, such as one checking npm install exit codes and printing custom error messages.
A developer walks through optimizing a basic spin-lock implementation in C++, starting from a naive atomic exchange loop that slows dramatically under contention. Benchmarks show the naive version taking 3.14 ns uncontended but ballooning to 246 ns with four threads, driven by cache-line contention and branch mispredictions. Through iterative refinements, the author achieves a version that is 5.7 times faster and consumes 5.4 times less energy than the original.
A browser-based project reproduces mid-century mathematical illustration techniques—like those in Francis's 'A Topological Picture Book'—for 3D surfaces, using triangulated meshes, GPU-computed silhouettes, and curvature-based hatching to mimic pen-and-ink drawing. Users can rotate, zoom, and manipulate hand-lettered labels on interactive models, with strokes dynamically redrawn as the view changes.
Pydantic has released HTTPX2, a new Python HTTP client library that continues the work of the HTTPX project, offering sync and async APIs, HTTP/1.1 and HTTP/2 support, and an optional command-line client. The project is positioned as a stewardship effort to keep the library actively maintained after HTTPX saw reduced development activity.
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