Note di Matteo


30 ottobre 2025

TIL le build del toolchain Go sono riproducibili al byte:

They made it so every version of Go starting with 1.21 could be easily reproduced from its source code. Every time you compile a Go toolchain, it produces the exact same Zip archive, byte-for-byte, regardless of the current time, your operating system, your architecture, or other aspects of your environment (such as the directory from which you run the build).

#120 /
11:32
/ #dev

PostgreSQL extensions on cloud monitora quali estensioni sono presenti su quali cloud provider che offrono PostgreSQL managed. Utile! E dato che OVHcloud e UpCloud si basano su tecnologia Aiven, sono implicitamente inclusi nel confronto.


29 ottobre 2025

Dati interessanti su Setlist.fm:

Show by show, user entry by user entry, Setlist.fm exploded. In 2012, the site had a database of more than 400,000 set lists for 24,000 artists and reached 1.5 million people a month. Now, it has more than 9 million set lists for 400,000 artists, with 80 million users a year, according to Live Nation. Someone creates a new set list every 20 seconds. Fleischer emphasized that people stay on the site for an average of roughly eight minutes: “It’s a really heavily engaged community.”

Setlist.fm carries advertisements, but that income probably accounted for only a tiny portion of the $896 million in profit its parent company, Live Nation, posted last year. A corporate behemoth, Live Nation is the world’s largest concert promoter and the owner of Ticketmaster. The company does not break out revenue or earnings for Setlist.fm.

(NYT)

#118 /
21:22


AI slop

Nel caso non fosse ancora entrato nel vostro vocabolario, con AI slop si intendono contenuti di qualità medio-bassa creati con strumenti di intelligenza artificiale, secondo The Conversation. A me piace più la definizione su Wikipedia: “un contenuto digitale realizzato con l’intelligenza artificiale generativa, in particolare quando viene percepito come privo di impegno, qualità o significato profondo e caratterizzato da un volume di produzione eccessivo”.

Carola Frediani in Guerre di rete.

#116 /
21:20
/ #ai


Confermato che Bending Spoons compra AOL:

Bending Spoons said its approach for AOL and other investments is to revamp and retain businesses. AOL has around eight million daily active users and a high customer retention rate, it said. Its main business lines include software for internet privacy and protection and the AOL.com website and email domain.

AOL generates around $400 million in annual earnings before interest, taxes, depreciation and amortization, the Journal previously reported. Revenue is north



27 ottobre 2025



26 ottobre 2025

Aggiungere una CDN o in generale avvicinare l'edge all'utente finale non sembra avere impatto in sulla latenza in presenza di una origin dinamica (rispetto a connettersi direttamente alla origin).

Mi sarei aspettato che fasi delicate come handshake TCP/TLS beneficiassero della vicinanza dell'edge e che la connessione CDN-origin fosse di qualità migliore, e invece:

Non una prova definitiva ovviamente.

#110 /
20:28
/ #cdn#http


At Netflix, we’d often find that backend services had slow memory leaks, which took a long time to discover and fix because instances rarely lived longer than 48 hours, due to autoscaling policies. If we had chosen to focus on memory leaks instead of autoscaling, Netflix would have been unable to scale to meet demand, and would’ve been a much smaller business.

Matthew Hawthorne, ex ingegnere Netflix.

#108 /
14:21
/ #dev


Anthropic punta sul B2B, mentre OpenAI domina il mercato di massa consumer:

Anthropic has generated much less mass-market appeal. The company has said about 80% of its revenue comes from corporate customers. Last month it said it had some 300,000 of them.

Anthropic is also surprisingly close to OpenAI when it comes to revenue. The company is already at a $7 billion annual run rate and expects to get to $9 billion by the end of the year—a big lead over its better-known rival in revenue per user.

(WSJ)

#106 /
10:43
/ #ai#anthropic

NanaZip. The 7-Zip derivative intended for the modern Windows experience.

#105 /
08:57

25 ottobre 2025

us-east-1

Today, us-east-1 is the single largest AWS region. It generates an estimated 2.5GW capacity spread across 6 availability zones (AZs) and 158 data centers. In comparison, the second-largest region is us-west-1 in Oregon, with an estimated 1.7GW capacity spread across 4 availability zones (AZs) and 48 data centers. Not only is us-west-1 about smaller than us-east-1, but it also charges higher per-instance prices than us-east-1.

(da The Pragmatic Engineer)

#104 /
23:07
/ #cloud#aws

TIL AWS chiama le istanze EC2 "droplet" internamente, come DigitalOcean:

The first subsystem is DropletWorkflow Manager (DWFM), which is responsible for the management of all the underlying physical servers that are used by EC2 for the hosting of EC2 instances – we call these servers “droplets”.

#103 /
22:55
/ #cloud#aws

Waymo con la neve, questo inverno è quello decisivo e i taxi sono attrezzati:

In addition to better data, Waymo is exploring other solutions to help its robotaxis navigate slicker, slushier streets. For example, tiny mechanical wipers have been installed to help clear snow off the vehicle’s rooftop lidar sensor. More powerful heaters are also included to help defrost all the sensors. Waymo’s current system is already trained on icy road conditions and can handle challenges like black ice.

I taxi comunicano tra loro per comunicare situazioni di pericolo:

Each vehicle in its fleet records this data while out on the road, like a mobile weather station, he said. “Let’s say the vehicle encounters a slippery patch,” Chen said. “It’ll actually send that information to the rest of the fleet and now other other vehicles in the fleet know that that particular location is slippery.”


"Ora solare" -> risultato per "ora legale". AI.

#101 /
14:25