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PostgreSQL backups face uncertainty & Cassandra storage engine modernization - Hacker News (Apr 27, 2026)

PostgreSQL backups face uncertainty & Cassandra storage engine modernization - Hacker News (Apr 27, 2026)

Published 1 month, 3 weeks ago
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Today's topics:

PostgreSQL backups face uncertainty - pgBackRest, a widely used PostgreSQL backup/restore tool, is now obsolete and unmaintained—raising risk around security fixes, compatibility, and long-term support for production backups.

Cassandra storage engine modernization - Apache Cassandra 5 brings storage-engine upgrades like trie-based structures and newer compaction work, aiming for better efficiency and more predictable operations at scale.

On-device AI in Chrome - Chrome’s Prompt API expands access to on-device Gemini Nano for web pages and extensions, highlighting the shift toward local AI features with new governance, permissions, and hardware constraints.

Quantizing vectors for cheaper AI - TurboQuant proposes compressing embeddings and KV caches to a few bits with a shared rotation and a reusable codebook, but debate continues around bias, benchmarking, and lineage versus prior work like EDEN.

AI and engineering judgment gap - A growing concern in software teams: AI can remove drudgery, but it can also encourage “outsourced thinking,” weakening debugging instincts, risk awareness, and real technical judgment—especially for juniors.

Docs screenshots that self-update - A documentation workflow auto-regenerates screenshots via headless browser runs driven by directives in Markdown, reducing stale help-center images and keeping docs aligned with UI changes.

Cheap DIY USB audio DSP - DSPi turns inexpensive Raspberry Pi Pico-class boards into a plug-and-play USB audio interface with built-in DSP, making room correction and active audio setups more accessible to hobbyists.

Authenticity fights: brands and social - Friendster’s domain revival experiments with real-world friend connections, while Moleskine’s AI-disclosure backlash shows how trust can erode when generative content labeling is inconsistent.



-pgBackRest PostgreSQL Backup Tool Declared Unmaintained and Obsolete
-DSPi firmware turns Raspberry Pi Pico boards into a multi-output USB audio DSP
-flipdisc.io
-Friendster Domain Bought and Relaunched as an In-Person-First iOS Social App
-Moleskine Faces Backlash Over AI-Generated Imagery in Lord of the Rings Notebook Launch
-Interactive Walkthrough Details TurboQuant’s Random-Rotation Quantization for 2–4 Bit AI Vectors
-Blog Warns AI Can Create ‘Outsourced Thinking’ in Software E
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