Antimony is a CAD tool built around a different model of design: instead of imitating a drafting table, it treats a project as a programmable network of connected operations. Its three main components are a directed acyclic graph for tracking data flow, a geometry engine for solid modeling, and a library of shapes and transformations. Each node is defined with Python-based scripts, usually representing a primitive or transformation; links between nodes carry results forward, and edits automatically propagate through the graph. This approach supports complex assemblies as well as simple designs.
The geometry engine uses functional representations suited to constructive solid geometry, including unions, intersections, and differences. It renders models in a 3D viewport and can export heightmaps for 2.5D fabrication or STL files for 3D printing, with processing intended to preserve sharp edges. The standard library includes basic operations such as rotation and scaling alongside less conventional tools like bending and attraction. Designers can also create custom nodes, add interactive controls to the viewport, and connect those controls to the graph so that dragging a point changes the model. The project grew from work on personal CAD/CAM workflows at MIT’s Center for Bits and Atoms and builds on earlier tools. It is open source and welcomes contributors, but its beta stability makes it unsuitable for mission-critical work.
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The Internals of PostgreSQL is a guide to how PostgreSQL works, covering topics such as storage, query processing, replication, and asynchronous I/O. It is regularly updated, with recent additions on logical replication and database internals. (interdb.jp)
Pratt parsing assigns behavior directly to tokens: nud rules handle tokens with nothing to their left, while led rules handle tokens that follow an expression. Its key idea is this shift from grammar production rules to token-based parsing behavior. (vinipsmaker.github.io)
ATS is a statically typed programming language that supports both functional and imperative programming. Its type system includes dependent and linear types for expressing program properties and managing resources. (ats-lang.sourceforge.net)
Ubuntu 26.04’s Rust-based sudo is not compatible with standard sudo. The page’s contents are inaccessible, so no further details are available. (utcc.utoronto.ca)
Tangled in a Box packages Tangled’s Git collaboration stack for local or private-network use, launched with Docker Compose. It’s a proof of concept with hardcoded secrets that should be replaced before any real deployment. (jola.dev)
ByteDance’s USDB storage system combines streaming and batch data for recommender histories, speeding up reads and reducing repeated maintenance. Production results show 85.8% lower average write latency and 42.1% lower infrastructure costs than the previous deployment. (arxiv.org)
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