Networking
This article explains what a Direct Attach Copper (DAC) cable is, how it compares to optical fiber, and the use cases for DACs in data centers. It covers breakout DACs, reach limits, active versus passive DACs, and the cost and compatibility trade-offs of using copper cabling over optics.
Open Source
JJ v0.46.0 release notes describe new workspace colocations, multi-remote pushes, and file editing across revisions, along with breaking changes like updated minimum Git and Rust versions. Useful for developers and DevOps teams adopting JJ's Git-like workflow and for open-source contributors tracking tool updates.