Antes de apuntarte a otro curso de inglés, comprueba desde dónde empiezas.
¿A1, A2, B1 o B2? Haz este test gratuito que he construido y obtén una estimación de tu nivel para elegir mejor qué estudiar.
✅ 100 preguntas de dificultad progresiva
✅ Resultado y explicación de los errores
✅ Sin registro y con progreso guardado
¿Cuál crees que te va a salir? Compruébalo 👇https://t.co/xRH61Dp6rw
♻️ Comparte para ayudar a otros!
🚨 WINDOWS EJECUTA MÁS DE 200 SERVICIOS EN SEGUNDO PLANO Y LA MAYORÍA NO LOS NECESITAS
Gastan recursos, recopilan datos y mantienen activas funciones que probablemente nunca has usado.
Alguien se cansó y creó optimizerDuck: una herramienta gratis y open-source para Windows 10 y 11.
Esto es lo que hace:
→ más de 35 ajustes de rendimiento, privacidad, batería y sistema
→ control de más de 200 servicios, etiquetados por nivel de riesgo
→ eliminación de bloatware con vista previa antes de borrar nada
→ optimizaciones para GPUs AMD, NVIDIA e Intel
→ todos los cambios se pueden revertir
Y lo mejor: antes de tocar nada te obliga a crear un punto de restauración y genera archivos para deshacer cada ajuste.
Sin instalador, sin anuncios, sin telemetría y sin versión premium. Funciona incluso sin conexión.
Repo en comentarios 👇
تستخدم الـai؟
هذا موقع إذا عرفته مستحيل تستغني عنه .. تقوله وش الشغلة اللي تبيها ويقولك عن أفضل الأدوات اللي تساعدك
تعرف أفضل الأدوات لأي مجال :
https://t.co/5C0qQsApYL
8 creative tools to make your designs feel less predictable. Save these ↓
- https://t.co/rHrY7BBCGx
- https://t.co/OjHHWFsgMg
- https://t.co/IQtrlONJB1
- https://t.co/8nV6mAk6WQ
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- https://t.co/SckWepFKn7
- https://t.co/ecp0WHY448
- https://t.co/1JFMnvEM52
Which one are you trying first?
Most devs have never built:
• a tokenizer
• a memory allocator
• a scheduler
• a syscall handler
LowLevelCraft has 479+ micro-tasks that make you build all of them.
In the browser. No setup. C, C++, Rust, Python, ARM asm.
The C track is free 👇
La actualización KB5124010 está dando problema en aplicaciones y juegos legacy que usan la codificación de audio AC-3 produciendo que se cierran inesperadamente.
Versiones afectadas de #Windows11: 24H2, 25H2 y 26H2.
10 GitHub repos that seem "illegal" but are perfectly legal
1. yt-dlp → https://t.co/a9DYvZNrRO
Downloads videos from any platform. YouTube Premium charges 16 dollars a month to do less
2. Ollama → https://t.co/8xn658MIbv
Runs AI models on your laptop without paying for APIs. What costs many hundreds a month here comes out to 0
3. Fooocus → https://t.co/9ZkxuhLePc
Generates images with Midjourney-quality on your GPU. Midjourney charges 30 dollars. This is unlimited and free
4. Whisper → https://t.co/49mBHWhkJL
Transcribes audio for free in 99 languages. Otter charges 20 dollars a month to do the same
5. Plausible → https://t.co/cAsHP7yPF8
The open source alternative to Google Analytics. Companies pay thousands a year. Self-hosted costs 0
6. AppFlowy → https://t.co/LSAN2xKWQW
The open source Notion. Notion charges 20 dollars per user. Here you get unlimited users on your server
7. Penpot → https://t.co/VgiSrCphgr
The open source alternative to Figma. Figma charges 16 dollars per editor. Penpot is self-hosted and free
8. n8n → https://t.co/6xCBZc3fVe
The open source Zapier. Zapier Pro can cost hundreds a month. n8n runs unlimited automations
9. Cal .com → https://t.co/UxwnFXaxIv
The open source alternative to Calendly. Calendly Teams charges 16 dollars per user. This is free for personal use
10. Bitwarden → https://t.co/2zjDld6Ulk
The open source alternative to 1Password. Most charge per user. Bitwarden has a very complete free version
All legal. All free. All open source
Save them all
Share it with that person who keeps paying for tools that have been free all this time and Must follow
@sauda_coder
for see more Ai content .
🚨 Si desarrollas software, hay temas de SEGURIDAD que ya deberías conocer.
Muchos programadores se concentran en que su código funcione… pero olvidan las vulnerabilidades que pueden poner en riesgo toda una aplicación.
Todo DEV debería conocer este recurso que es GRATIS.
学 C 语言学到指针还行,一碰到进程、线程、锁这些操作系统的东西,课本讲得干巴巴,网上资料又东一块西一块。
伊利诺伊大学的系统编程课 CS 341,把自己用的课本开源了,就叫 Coursebook。
内容从 C 语言入门讲起,一路讲到进程、内存分配、线程、同步与死锁、进程间通信、调度、网络、文件系统、信号和安全,代码全部用 C 写。
前身是一份公开的 wiki 教材,现在补上了引用、脚注和术语表,书后还附了复习题。
GitHub:https://t.co/VoXkeBKAy1
网页版可以直接在线读,也有 PDF 和 EPUB,下载下来放进阅读器里看。
先学过一门编程语言、对汇编有点了解再看会比较顺。正在学操作系统、或者想补补底层功底的朋友,拿它当教材挺合适。
Networking is everywhere.
Every API call, page load, database request, and real-time message depends on a few core networking concepts working together.
Here are 8 concepts every developer should understand:
→ 𝗗𝗡𝗦 𝗥𝗲𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻
Converts domain names into IP addresses so clients can find the correct server.
→ 𝗛𝗧𝗧𝗣 / 𝗛𝗧𝗧𝗣𝗦
Handles web communication through methods, headers, status codes, and secure TLS transport.
→ 𝗧𝗖𝗣 𝘃𝘀 𝗨𝗗𝗣
TCP focuses on reliable, ordered delivery. UDP prioritizes speed, low latency, and minimal overhead.
→ 𝗥𝗘𝗦𝗧, 𝗚𝗿𝗮𝗽𝗵𝗤𝗟 & 𝗴𝗥𝗣𝗖
Each API style offers different trade-offs around simplicity, flexibility, typing, and performance.
→ 𝗪𝗲𝗯𝗦𝗼𝗰𝗸𝗲𝘁𝘀
Create persistent two-way connections for chat, live dashboards, collaboration, and real-time applications.
→ 𝗧𝗟𝗦 & 𝗘𝗻𝗰𝗿𝘆𝗽𝘁𝗶𝗼𝗻
Protect data in transit through authentication, encryption, session keys, and integrity checks.
→ 𝗥𝗲𝘃𝗲𝗿𝘀𝗲 𝗣𝗿𝗼𝘅𝗶𝗲𝘀
Handle routing, caching, TLS termination, rate limiting, and load balancing before traffic reaches backend services.
→ 𝗖𝗼𝗻𝗻𝗲𝗰𝘁𝗶𝗼𝗻 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁
Uses pooling, keep-alive, timeouts, and backpressure to reduce latency and improve throughput.
You do not need to become a network engineer to write better software.
But understanding how requests actually move across a network makes APIs, backend systems, distributed applications, and cloud architecture much easier to design and debug.
Which networking concept took you the longest to understand?
P.S. Preparing for a software engineering role? Check out my book, System Design and Behavioral Intelligence.
It will help you:
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