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The Daily EPUB

Thursday, August 27, 2026 · No. 13

20 articles · ~2h 41m read · 8 sections

A personal morning paper, assembled daily; the selection is the reader's, the words are the authors'.

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Top Stories

Andrew Atkinson: PostgreSQL 18: 23x Faster Inserts With UUID V7

Planet PostgreSQL · postgr.es · 8 min

Switching primary keys to UUID v7 in a Postgres 18 database yields insert speedups of 6x to 23x on heavily queried tables, including a 23x drop from 0.7ms to 0.03ms on a 12,000-calls-per-minute insert. The author details the ALTER TABLE lock problem and the retry-with-jittered-backoff solution, plus the timestamp-exposure tradeoff.

Researchers get two genetic codes to work at the same time

John Timmer · Ars Technica · arstechnica.com · 7 min

Researchers led by George Church demonstrate a way to run two genetic codes in parallel by altering the sequences where tRNAs and ribosomes pair. The work, tested only in cell-free mixtures, produces two different proteins from the same mRNA, potentially easing future experiments with alternative genetic codes without re-engineering entire genomes.

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tailscale/tailcat

GitHub All Languages Weekly Trending · github.com · 18 min

Tailcat repackages Tailscale's data plane as a netcat-like CLI and Go library, exchanging connection metadata out of band via short WireGuard-derived tokens instead of the control plane. It pipes stdin/stdout, forwards ports, and even runs an auth-free SSH server, upgrading from DERP relay to direct peer-to-peer when NAT traversal succeeds — all without root or a Tailscale account.

Hacker News: 687 points · 134 comments

Tech & Engineering

Christophe Pettus: All Your GUCs in a Row: log_destination and logging_collector

Planet PostgreSQL · postgr.es · 6 min

PostgreSQL's logging_collector converts stderr into files via a pipe and child process, preserving multi-line messages but blocking every backend when it falls behind, while syslog drops messages under load. Debian's default collector-off setup relies on copytruncate rotation and kernel luck; the advice is to turn the collector on with stderr plus jsonlog and put log_directory outside the data directory.

Why the global push to break free from Big Tech keeps falling short

Cecilia Rikap · Rest of World - Latest Stories · restofworld.org · 6 min

Government efforts to regain digital sovereignty from U.S. cloud giants keep falling short because they sidestep the core issue of intellectual monopolization. From EU AI factories to India's Intel-Oracle plan and Brazil's intermediate layer, public-sector initiatives still depend on Big Tech infrastructure. Even China's imitative model merely reshuffles ruling powers, and DeepSeek's rise ultimately benefits U.S. clouds.

Science & Space

A New NASA Design Turbocharges Nuclear Spacecraft

Kurt Polzin · IEEE Spectrum · spectrum.ieee.org · 15 min

NASA engineers propose a synchronal bimodal nuclear rocket that combines nuclear thermal and electric propulsion in a single reactor, using separate fuel zones and fluid loops to eliminate mode-switching valves. The design could cut a Mars round trip from 620 days to 335 days in transit, reducing radiation and microgravity exposure, though fuel development and ground testing remain hurdles.

Volcanoes That Made History

Alexandra Witze · Nautilus · nautil.us · 9 min

Volcanic eruptions have repeatedly reshaped climate and history. Krakatau's 1883 blast killed 36,000, while sulfur traces in ice cores link the 1257 Samalas eruption to Mongol decline, an eruption around 1345 to the Black Death, and Tambora's blast to the 1816 'year without a summer'. These historical lessons, scientists say, may forecast how societies will fare in modern climate shocks.

How the Heat is Messing with Your Sleep

Kristen French · Nautilus · nautil.us · 5 min

A Climate Central analysis finds the average person lost nearly 56 hours of sleep a year to elevated nighttime temperatures from 2020 to 2025, with effects doubled or worse in every city studied since the 1970s. The piece details why humidity and heat disrupt REM, how the heat-island effect and lack of air conditioning worsen the burden, and why even temperature-controlled mattresses may only work as a placebo.

AI & Machine Learning

RAG Is Simpler Than You Think

j0selit0 · Hacker News: Best · lighthousenewsletter.com · 10 min

Most teams over-engineer retrieval stacks, jumping straight to embeddings and vector databases when users just need to find 'how to reset my password.' The piece lays out a decision ladder—from BM25 full-text search to query rewriting with an LLM, then hybrid reranking, and finally full pre-embedding—estimating that 60% of systems should stop at full-text plus query rewriting. It includes cost/latency math, such as $15/month for on-the-fly embedding at 1,000 queries/day.

Hacker News: 456 points · 193 commentsComments

GraphRAG Is an Inference Problem, Not a Database Problem

Haimantika Mitra · DigitalOcean Community Tutorials · digitalocean.com · 12 min

Reframes GraphRAG as an inference workload, arguing the choice of where to run extraction and query-time LLM calls — not the graph database — drives cost and latency. Cites GraphRAG-Bench numbers (graph wins by 10–13 points on multi-hop and synthesis, ties on fact lookup) and shows LazyGraphRAG cut indexing cost to ~0.1% of the original. Includes a reference architecture and an open-source benchmark harness for reproducible comparison.

When Smaller Models Win

All - O'Reilly Media · oreilly.com · 9 min

Smaller, specialized models beat frontier LLMs at specific tasks, argues this piece: Stockfish crushes ChatGPT at chess, and a 4B researcher model outperforms Claude Sonnet 4.5 on search benchmarks. Fine-tuning via LoRA and self-hosting give developers control that APIs can't, making specialization a practical alternative to ever-larger general models.

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Culture & Essays

Dolly Parton didn't just write hits — she created an American songbook

Ann Powers · News : NPR · npr.org · 7 min

Dolly Parton's defining solo-written songs—'Jolene,' 'I Will Always Love You,' '9 to 5'—constitute an American songbook that chronicles women's changing experiences from 1960s country to 1980s working-woman anthems. Beneath the pop hits lies a gothic darkness covering abuse, stillbirth, and suicide; her late-career reinvention spans bluegrass and rock.

Hollywood’s Video Game Era Is Here. Will It Be Any Good?

Stat Significant · tyler's Top Finds on Scour Today · statsignificant.com · 9 min

Video game adaptations are poised to replace superhero movies as Hollywood’s franchise backbone—a win for adult storytelling, the essay argues. It contrasts the 1993 Super Mario Bros. flop with the 2023 $1.3 billion animated hit, notes $60B yearly US gaming spend vs $2B on comics, and points to gaming’s age diversity—32% of octogenarians play weekly. The author’s skepticism melts after Fallout and The Last of Us.

Vladislav Delay Quintet ~ vd5

Joseph Sannicandro · a closer listen · acloserlisten.com · 8 min

Vladislav Delay's vd5 trades Mika Vainio's brittle electronics for warm piano and trombone, opening into a porous acoustic space. The review traces the quintet's evolution from the electroacoustic quartet and calls the forty-five-minute set his most rewarding ensemble work since Vainio's passing.

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Boston & Local

As small Mass. colleges close, a growing focus on saving the students rather than the schools

GBH News · wgbh.org · 7 min

Massachusetts leads the nation in private college closures—27 since 2014—prompting a growing movement to prioritize students over institutions. The story follows former Wheelock College president David Chard, whose 2018 merger with Boston University saved most students and faculty, while leaders like SeaChange's John MacIntosh argue the mission, not the college, is what deserves saving.

Niche Corner

CoMaps: The Offline App That Guided Rescuers Without a Signal in Venezuela

hotosm.org · Popular Posts on Scour Today · hotosm.org · 6 min

In Venezuela's earthquake response, rescue teams navigate no-signal zones with CoMaps, an offline OpenStreetMap app built by volunteers. Rescuer Anton guides a Salvadoran team after its map coordinator's limited app falls short, while the app's update time drops from ten days to three, putting weekly fresh maps in responders' hands.

Hacker News: 278 points · 61 commentsComments

Blue Dragon has been stuck on the Xbox 360 for 20 years, but no longer: a fantastic unofficial PC port unlocks the FPS, goes 4K, and even adds mod support

wesley@pcgamer.com (Wes Fenlon) · PC Gamer · pcgamer.com · 7 min

A fan-made recompilation port called re:Blue brings the 2006 Xbox 360 JRPG Blue Dragon to PC with 4K, unlocked frame rates, and native mouse-and-keyboard support. Programmer Tom built it with his ReXGlue toolset, reverse-engineering the undocumented engine and adding quality-of-life features that blend into the original UI. The project also showcases ReXGlue's promise to enable similar recompilations of other Xbox 360 games.

Gadget Review: Thermal Master P3 Macro Lens ★★★★⯪

@edent · shkspr.mobi · 5 min

A hands-on review of the P3 thermal camera finds its manual macro lens surprisingly useful for inspecting circuit boards, focusing from as close as 2cm. Images are detailed (1344x1008) but saved as ~6MB uncompressed JPEGs, and video drops to 504x672 at 25fps. The accompanying app crashes frequently, and Linux users get no image access, yet the verdict is positive for hobbyists and hackspaces at £280.

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From the Blogroll

Can Self-Hosting Be Simple?

Ernie Smith · Tedium · tedium.co · 11 min

Testing the less-is-more school of self-hosting, the author assembles an offsite 'third-place' backup box from a $319 Acemagic K1 mini PC, Linux Mint, Docker, Tailscale, and Dockge. The six-tool stack spans photos, link management, passwords, file sync, office, and an AI agent; the box underperforms its specs due to single-channel RAM, yet stays cool and streams YouTube through RustDesk.

Hacker News: 2 points · 0 comments

Review: All Them Dogs by Djamel White

nullrouted.space · tyler's Top Finds on Scour Today · nullrouted.space · 6 min

A review of Djamel White's Booker-longlisted debut novel, which follows Irish gangster Tony Ward back to Dublin after a murder, and the claustrophobic queer love story with Flute Walsh. The reviewer praises the sense of place, darkly beautiful prose, and the tragic tension between tenderness and violence.

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