esthernet 🌐

Weee! 💫🧸💻

[esthernet 🌐 @esthersala01]

Mentally, I'm here

[kira 👾 @kirawontmiss]

Before AI we had Zach King

[aditya @adxtyahq]

bro.
someone built a terminal weather app
in Rust with live ASCII animations.

it literally rains / snows inside your terminal
when it’s raining / snowing outside 😭

this is peak software.

[Edu | 🚀 SEO & 🕷️ Web Scraping @edu_seo_scraper]

1:
Llevo meses optimizando mi scraper de Google Maps.

Hoy he scrapeado 35,000 empresas de toda España en 2 minutos.

Sin proxies. Sin API key. 43 requests/segundo. Una sola IP. Sin Bloqueos de Google!

Abro hilo con lo que he conseguido. 🧵👇

[Ramin Nasibov @RaminNasibov]

Hagibis Folder SSD

[Macjosan @macjosan]

Le hemos metido un cifrado irrompible, pero …
- Para registrarte en un hotel, un tipo que no conoces de nada te pide el DNI y te lo fotocopia.
-Para darte de alta en un suministro o servicio tienes que escanearlo y mandárselo por correo.
- Hackean a Endesa y lo tienen los cibercriminales.
- Para obtener el certificado digital (CERES) hay que correr un programa que deja expuesto el ordenador.

Me parece un avance en seguridad el nuevo cifrado del DNI, pero no vale de nada una cadena con un eslabón muy fuerte si el resto son débiles.

La usurpación de identidad o los problemas de seguridad no vienen por un fallo en el cifrado del DNI, sino por el desconocimiento de seguridad de mucha gente y por unas leyes absurdas que nos obligan a entregar nuestros datos.

Este DNI electrónico será reemplazado en su uso por el certificado digital europeo que quieren implantar.

Y esto no va contra la Policía Nacional, al revés, va contra un sistema que no tiene lógica.

[Javi López ⛩️ @javilop]

⚡ Un ingeniero de Google DeepMind ha creado una réplica de Nueva York en isométrico utilizando únicamente agentes de código y Nano Banana.

¡Y ha documentado todo el proceso!

FLIPA 🧵👇

[El Club del Arte 🎨📷📚🖼🕍🎼 @Arteymas_]

Fotografía con cambio de inclinación que hace que el mundo real parezca un juguete…

[Md Ismail Šojal 🕷️ @0x0SojalSec]

Chinese scientists have developed,

The best shortest-path algorithm in 41 years!

A team from Tsinghua University has broken Dijkstra's "sorting barrier" - the first improvement since 1984.

Just use for a world-map 🤯

Paper - https://t.co/0AhR5O7vl4
https://t.co/a9KMVRuYGx

[Tom Dörr @tom_doerr]

Android emulator in a Docker container

https://t.co/M8nlWPXAWb

[Miguel Ángel Durán @midudev]

Cada día el hardware mejora pero el software empeora.

Microsoft admite que el Explorador de Archivos de Windows 11 va lento. ¿La solución?

Lo van a precargar en segundo plano para que parezca más rápido cuando lo abras.

Echo de menos cuando escribíamos mejor código para exprimir de verdad lo que nuestras máquinas podían hacer.

[Miguel Ángel Durán @midudev]

Este repositorio es una joya. Te da todos los pasos e instrucciones para proteger y asegurar tu servidor Linux.

Perfecto por si tienes un servidor propio o VPS:
https://t.co/yJD2GnXFPj

[Windows Latest @WindowsLatest]

Microsoft confirms "Update and Shut Down" was actually restarting Windows 11.

If you have ever noticed Windows 11’s Update and Shut Down not actually shutting down your PC and restarting instead, you’re not alone.

Many of us probably developed a little trust issue with that button because the PC kept bouncing back to the sign-in screen.

Turns out it was a known issue with Windows 11 and even Windows 10. It's finally fixed.

This fix will begin rolling out to everyone with this month's Patch Tuesday, scheduled for November 11.

Requires Build 26200.7019 / 26100.7019 or newer.

[M 📺 @casasola_89]

Impresionante la realidad aumentada utilizada por Informartivos Telecinco para recordar la DANA

[Tom Dörr @tom_doerr]

Unofficial WhatsApp API for bots, automation, and integrations

[Dhanian 🗯️ @e_opore]

𝗛𝗼𝘄 𝗱𝗼𝗲𝘀 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝘆𝗼𝘂𝗿 𝗺𝗲𝘀𝘀𝗮𝗴𝗲𝘀 𝗶𝗻𝘀𝘁𝗮𝗻𝘁𝗹𝘆 𝗮𝗻𝗱 𝘀𝗲𝗰𝘂𝗿𝗲𝗹𝘆 𝗮𝗰𝗿𝗼𝘀𝘀 𝘁𝗵𝗲 𝗴𝗹𝗼𝗯𝗲?

Telegram is built on a 𝗱𝗶𝘀𝘁𝗿𝗶𝗯𝘂𝘁𝗲𝗱 𝘀𝗲𝗿𝘃𝗲𝗿 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 with data centers located in different parts of the world (DC1, DC2, etc.) for low latency and high availability.

When you send a message, it is first encrypted and sent to the nearest Telegram server cluster. For secret chats, it uses 𝗲𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝗲𝗻𝗰𝗿𝘆𝗽𝘁𝗶𝗼𝗻 (MTProto), meaning only you and the recipient can read it. Cloud chats are also encrypted but between the client and server.

The platform is designed for speed and reliability, using a custom 𝗽𝗿𝗼𝘁𝗼𝗰𝗼𝗹 (MTProto) optimized for quick delivery over unreliable mobile connections, ensuring messages get through even on weak networks.

Telegram's core consists of 𝗵𝗶𝗴𝗵𝗹𝘆 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀. The Auth Key service manages user authentication and encryption keys. The Message Broker service routes traffic between users and data centers.

The Storage service handles massive amounts of media and files in a distributed manner, while the Sync service ensures your chats are updated across all your devices instantly. A dedicated Push service delivers notifications efficiently.

Behind the scenes, Telegram runs 𝗺𝗮𝘀𝘀𝗶𝘃𝗲 𝗿𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀. It handles billions of messages daily with a relatively small team by focusing on efficiency and a clean, optimized codebase.

Data is distributed across multiple data centers for redundancy and speed. Media is heavily cached and replicated to be delivered from a location nearest to the user.

The entire system is designed for 𝗳𝗮𝘂𝗹𝘁 𝘁𝗼𝗹𝗲𝗿𝗮𝗻𝗰𝗲 and scalability, allowing it to handle massive traffic spikes and continue operating smoothly even if parts of the infrastructure encounter issues.

The most impressive part is the scale and efficiency. Telegram supports hundreds of millions of users, allows massive group chats and channels, and delivers media instantly, all while maintaining a strong focus on privacy and speed.

𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸:

⚛️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Telegram's own C++ MTProto library, Kotlin Native, Swift, React for web versions
🖥️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: C++, Go, Java, Python
🔄 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹: Custom MTProto
📱 𝗠𝗼𝗯𝗶𝗹𝗲: Swift for iOS, Kotlin for Android (official apps)
🌍 𝗗𝗮𝘁𝗮 𝗖𝗲𝗻𝘁𝗲𝗿𝘀: Multiple geographically distributed clusters
🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, custom distributed storage
🧠 𝗖𝗮𝗰𝗵𝗶𝗻𝗴: Redis, Memcached
✉️ 𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴: Custom message queueing and broker systems
🔒 𝗘𝗻𝗰𝗿𝘆𝗽𝘁𝗶𝗼𝗻: MTProto (aes256, rsa2048, dh2048) for client-server/server-client and end-to-end for secret chats
📹 𝗠𝗲𝗱𝗶𝗮 𝗦𝘁𝗼𝗿𝗮𝗴𝗲: Custom distributed file storage called BigFiles
⚙️ 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀: In-house tools for cluster management and monitoring

👉 Learn more in software design handbook: https://t.co/aE1KNO717x

[Dhanian 🗯️ @e_opore]

𝗛𝗼𝘄 𝗱𝗼𝗲𝘀 𝗪𝗵𝗮𝘁𝘀𝗔𝗽𝗽 𝗵𝗮𝗻𝗱𝗹𝗲 𝗯𝗶𝗹𝗹𝗶𝗼𝗻𝘀 𝗼𝗳 𝗺𝗲𝘀𝘀𝗮𝗴𝗲𝘀 𝗲𝘃𝗲𝗿𝘆 𝗱𝗮𝘆?

WhatsApp is built on a 𝗵𝗶𝗴𝗵𝗹𝘆 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗲𝗱 𝗲𝘃𝗲𝗻𝘁-𝗱𝗿𝗶𝘃𝗲𝗻 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, where services for messaging, calls, media sharing, status, and notifications work independently but integrate seamlessly.

When you send a message, it passes through load balancers and routing servers, which quickly deliver it to the recipient’s device using a “store-and-forward” system if they’re offline.

Messages are kept in 𝗲𝗻𝗰𝗿𝘆𝗽𝘁𝗲𝗱 𝗳𝗼𝗿𝗺 and deleted from WhatsApp servers once delivered. All chats, calls, and media are protected with end-to-end encryption, meaning only the sender and receiver can read them.

WhatsApp’s 𝗸𝗲𝘆 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 include Authentication (login, verification codes), Messaging (text, images, voice, video), Presence (online/offline status), and Calling (VoIP for voice & video).

Behind the scenes, WhatsApp runs 𝗿𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝘀𝘆𝘀𝘁𝗲𝗺𝘀. Each message is routed via data centers distributed globally to minimize latency and ensure fast delivery.

Databases handle user accounts, contact syncing, and media metadata, while caching systems help speed up frequent requests.

The system is designed for 𝗵𝗶𝗴𝗵 𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 and 𝗳𝗮𝘂𝗹𝘁-𝘁𝗼𝗹𝗲𝗿𝗮𝗻𝗰𝗲, so WhatsApp keeps running smoothly even during outages or spikes in traffic.

At scale, WhatsApp supports over 2 billion users exchanging tens of billions of messages, calls, and media daily, powered by Meta’s infrastructure.

𝗪𝗵𝗮𝘁𝘀𝗔𝗽𝗽 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸:

⚛️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React Native, JavaScript
🖥️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Erlang (core messaging), Java, C++
🔄 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: XMPP (modified), MQTT for real-time messaging
📱 𝗠𝗼𝗯𝗶𝗹𝗲: Swift (iOS), Kotlin/Java (Android), React Native
🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, Cassandra, Redis, RocksDB
✉️ 𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴: Erlang processes, Kafka (for analytics/events)
📊 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴: Hadoop, Spark, Presto
🔒 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆: End-to-End Encryption (Signal Protocol), TLS, Meta IAM
📹 𝗠𝗲𝗱𝗶𝗮 𝘀𝘁𝗼𝗿𝗮𝗴𝗲: Distributed storage systems + Meta’s CDN
⚙️ 𝗗𝗲𝘃𝗢𝗽𝘀: Kubernetes, Docker, Grafana, Prometheus, Scuba (Meta internal tool)
🤖 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴: Spam detection, fraud prevention, recommendation for business accounts

👉 Learn more in software design handbook: https://t.co/aE1KNO717x

[ling ✧ @fishlooker_]

idea: build a better file browser
result: liminal froggy OS