AI 资讯
Operating on a Minimal Two-Core Postgres Instance
Running a production database on a minimal two-core PostgreSQL instance presents unique engineering challenges. In resource-constrained environments, default configurations quickly lead to CPU exhaustion, memory thrashing, and high latency. To maintain stable performance, you must aggressively manage resource allocation and optimize query execution plans. The first critical area is connection management. PostgreSQL allocates a separate operating system process for each connection. On a two-core machine, allowing hundreds of concurrent connections will cause severe context switching overhead, degrading performance significantly. You should restrict maximum connections to a low double-digit number and implement a connection pooler like PgBouncer. A pooler ensures that incoming traffic queuing happens outside the database engine, allowing the CPU to focus on executing active queries rather than managing process states. Memory allocation parameters require precise tuning on limited hardware. The shared buffers parameter, which dictates how much memory PostgreSQL uses for caching data, should typically be set to twenty-five percent of total system RAM. However, work memory is where many developers run into trouble. The work memory setting determines the amount of memory used by internal sort operations and hash tables before writing to temporary disk files. Since this memory is allocated per query operation, a complex query with multiple joins can consume many times the configured value. On a two-core instance with limited RAM, setting this value too high can trigger the out-of-memory killer, while setting it too low forces slow disk-based sorting. You must analyze your heaviest queries and find a balanced value that prevents disk thrashing without exhausting system memory. Query optimization becomes a daily necessity when compute resources are scarce. You must regularly inspect query execution plans using the explain analyze command to identify sequential scans on large
AI 资讯
I hate that I don’t hate this song made with Suno
I would never go so far as to say there's no place for AI in music (I'm a fan of Holly Herndon, after all). But I generally find music made with generative AI to be offensively boring, especially the outputs of Suno. So I'm having a bit of a tough time processing the fact that […]
AI 资讯
TechCrunch Mobility: The battle over robotaxi rules
Welcome back to TechCrunch Mobility, your hub for the future of transportation and now, more than ever, how AI is playing a part.
AI 资讯
Birdfy’s solar-powered smart feeder is down to one of its best prices
Birdfy has kicked off a midyear sale, taking up to 40 percent off a range of its smart bird feeders. One of the best deals is on Netvue’s Birdfy Feeder AI-Powered Smart Bird Feeder with Camera, which has dropped to $149.99 at Birdfy and is its second-best price to date. The bundle, which includes a […]
AI 资讯
US Marshals arrest the Tate brothers in Miami
The manosphere influencers Andrew and Tristan Tate were arrested Saturday in Miami by US Marshals in relation to new rape and sex trafficking charges in England. According to the Associated Press, British authorities are seeking the brothers' extradition. The new charges facing Andrew Tate include seven counts of rape, three of sex trafficking, three counts […]
AI 资讯
The Clapper was a bad smart home gadget — and a viral sensation
Clap on. Clap off. Well, more like, Clap, pause for half a beat but no longer because otherwise it'll stop hearing you, clap again because you waited too long, clap louder and faster, that didn't work, clap two more times, and suddenly: on. The Clapper didn't always work - and even when it did, it […]
AI 资讯
The Off Switch: Mammals May Have Been Hiding the Power to Regrow Themselves All Along
A salamander can lose a leg and grow a new one. Cut a zebrafish's fin and it simply builds another. Mammals, us included, got the consolation prize: a scar. For a century, biologists assumed that somewhere on the evolutionary road to becoming warm-blooded, fast-moving animals, we traded regeneration away for good. Two research teams working on opposite sides of the planet have just made that assumption look wrong. The headline is almost hard to believe: the ability to regrow lost body parts may not have been deleted from our biology at all. It may simply have been switched off, and switches can be flipped back on. The genetic "remote control" that stopped working The first clue comes from a team at the National Institute of Biological Sciences in Beijing, working with genomics powerhouse BGI-Research. Publishing in Science , they zeroed in on a gene called ALDH1A2 , the instruction sheet for an enzyme that turns vitamin A into retinoic acid, a molecule that acts like a foreman on a construction site, telling cells where to go and what to build during tissue repair. Animals that regenerate freely crank this gene up at the wound site. Mice, it turns out, still carry the same gene. They've just lost the genetic "remote controls," the regulatory DNA that tells the gene to fire after an injury. The hardware is intact; the software command was disconnected somewhere in evolution. So the researchers reconnected it. By reactivating that dormant switch and restoring the flow of retinoic acid, they got mice to regenerate damaged outer-ear tissue, something a normal mouse simply cannot do. In their own words, they had found "a genetic switch involved in the evolution of regeneration." Meanwhile, in Texas, they regrew a limb joint The second piece of evidence lands the point with force. At Texas A&M, a group led by Dr. Ken Muneoka took a different route to the same destination. Instead of editing a genetic switch, they used a precisely timed sequence of two signaling proteins.
AI 资讯
Investor Database API: Filter 10,469 VC, Angel, and PE Firms as JSON in 2026
Every founder I know has burned a week building an investor list: digging through Crunchbase profiles tab by tab, copying partner names into a spreadsheet that is stale before the seed round closes. The data you want is simple, firms plus focus plus contacts, and it is weirdly hard to get in bulk. The shortcut I use now is the Startup Investors Data Scraper on Apify, a queryable investor database of 10,469 firms that returns filtered JSON in one call. Disclosure: the Apify links in this post are affiliate links. If you run the Actor, I may earn a referral commission at no extra cost to you. Is there a public API for investor data? Not really. The big commercial databases keep their APIs behind sales calls and paid plans sized for funds, not founders. Free sources are scattered lists and shared spreadsheets with no filters and no freshness guarantees. This Actor takes a different shape: a curated database of 10,469 investment firms (as of December 2025) that you query like an API, filtering by firm type, sector, stage, and country, and paying only for the records you pull. What the investor database API returns The investor database API returns one JSON record per firm: name, type, description, location, website, social links, assets under management, stages, and sector focus, with partner contacts when you ask for them. Field Example Notes firm_name Acme Ventures With firm_description alongside firm_type_name Venture Capital Investor One of 17 firm types firm_country Germany Plus firm_city and firm_state firm_website https://acme.vc Also firm_linkedin_url , crunchbase_url , twitter_url firm_aum $250M Assets under management when known investor_contacts [{ "job_title": "Partner", ... }] Names, titles, LinkedIn URLs, emails when available, and check sizes, with Include_Contacts on Who this is for Founders building a raise pipeline, sales teams selling into VC and PE back offices, and analysts mapping which firms fund a sector. If your CRM needs 200 seed funds with war
开发者
Google might not kneecap the Pixel 11a with an old processor
Mystic Leaks suggests that the Pixel 11a will return to featuring a flagship-grade processor with the Tensor G6. Rather than the Tensor G5 found in the Pixel 10 and 10 Pro, the Pixel 10a shipped with the previous generation Tensor G4. That was a huge disappointment since, typically, the Pixel a lineup kept the modern […]
AI 资讯
Google is open-sourcing its 3D emoji
Now, if you want to, you can use Google's 3D emoji in your own creations. The company shared some details about how it went about designing the little pictograms and why, as part of World Emoji Day on Friday. Things you might not necessarily worry about in a 2D illustration suddenly become very important when […]
开发者
Surprise! Facial recognition smart locks are actually good
Hands-free unlocking is the future of smart locks. The best smart home tech removes friction, and having your door unlock for you as you walk up is as frictionless as it gets - no passcodes to remember, no need to have a free hand to wave, press, or poke at the lock. One way to […]
开发者
Sony’s flagship RGB LED TV is incredible
The Sony Bravia 9 II is the most anticipated new TV in years. It's an amazing RGB LED TV. I watched Dungeons & Dragons: Honor Among Thieves on the new Bravia with my son, who has been getting into the roleplaying game but had never seen the movie. The landscapes of Faerûn looked natural and […]
产品设计
The apps, gadgets, and tools every reader needs
Hi, friends! Welcome to Installer No. 136, your guide to the best and Verge-iest stuff in the world. (If you're new here, welcome, hope your neighborhood isn't as smoky as mine, and also you can read all the old editions at the Installer homepage.) This week, I've been recording the next season of Version History […]
开发者
Capitnex Review: WebTrader, UX und Informationsarchitektur
Wer digitale Finanzprodukte baut, trifft früh eine grundlegende Entscheidung: native App, installierbare Desktop-Software oder eine Anwendung, die komplett im Browser läuft. Capitnex hat sich für den letzten Weg entschieden. Der WebTrader ist als browserbasierte Umgebung angelegt und benötigt keine lokale Softwareinstallation. Aus Produkt- und UX-Sicht ist genau diese Weichenstellung der spannendste Ausgangspunkt, weil sie fast jede weitere Gestaltungsentscheidung beeinflusst. Auch für Leser, die nicht handeln möchten, lohnt der Blick darauf, wie ein solches Produkt aufgebaut ist. Der Browser als Laufzeitumgebung Eine Anwendung ohne Installation senkt die Einstiegshürde spürbar. Es gibt kein Setup, keine Versionskonflikte auf dem Endgerät und keine Betriebssystembindung, mit der sich Anwender beschäftigen müssen. Der Zugang erfolgt über einen gängigen Webbrowser, und die Oberfläche steht damit unabhängig vom konkreten Gerät bereit. Für Entwickler hat dieser Ansatz eine klare Konsequenz: Die gesamte Darstellung muss auf unterschiedliche Bildschirmgrößen und Eingabearten reagieren. Capitnex beschreibt die Oberfläche als responsiv und konfigurierbar, was genau diese Anforderung adressiert. Der Verzicht auf ein lokales Client-Programm ist deshalb keine Nebensache, sondern eine Produktentscheidung mit Folgen für Verteilung, Wartung und die Konsistenz über verschiedene Endgeräte hinweg. Ein weiterer Effekt betrifft die Zugänglichkeit im weiteren Sinn. Wenn eine Anwendung ohne vorherige Installation erreichbar ist, entfällt eine ganze Klasse von Hürden, die sonst zwischen Interesse und erstem Zugriff liegen. Kein Download, keine Rechteverwaltung auf dem Gerät, keine Rücksicht auf ältere Hardware-Anforderungen. Die Anwendung trifft den Nutzer dort, wo er ohnehin arbeitet, nämlich im Browser. Das ist keine formale Barrierefreiheit im engen technischen Sinn, aber es ist eine bewusst niedrige Einstiegsschwelle, die in der Produktkonzeption angelegt ist. Informationsarchitektur
AI 资讯
Prompt Injection Attacks Are Thwarting AI Hacking Agents
“Context bombing” tricks malicious AI agents into shutting down before they can do harm.
AI 资讯
Fine, electric mountain bikes don’t suck
Cheater, I'd grumble between huffs as yet another e-bike rider casually skittered past me on a steep ascent. It's this purist attitude that, for years, has left me blind to one simple fact: electric mountain bikes are fun! My attitude adjustment came a few weeks ago, the very first time I rode an Amflow PX […]
创业投融资
Applications close in 48 hours — here’s everything Australian founders need to know about Stripe x Startup Battlefield
The window is almost shut. On August 19, eight startups will take the stage at Stripe Tour Sydney in front of investors, global press, and the Australian tech community. One startup walks away with automatic entry into TechCrunch Disrupt in San Francisco — no application, no further competition, a guaranteed spot on the world’s most […]
产品设计
Shark’s versatile ChillPill cooling system is back to its best price
Portable fans are one of the easiest ways to stay cool during the summer, and you don’t have to spend much to find a decent one. If you’re looking for something more versatile, though, Shark’s ChillPill Personal Fan and Cooling System combines a rechargeable fan with a dry-touch evaporative mister in a design that can […]
科技前沿
AWS Billing Glitch Hits Customers With Billion-Dollar Fees
An error with the cloud computing giant’s billing operation caused some customers’ monthly bills to rise from a few cents to billions of dollars.
开发者
Google-backed satellites for wildfire detection launch as smoke chokes US, Canada
The FireSat program can spot wildfires that other satellites miss.