The Modern Dev Stack

23/12/2025

🔥 Devs! Are your EF Core apps secretly slowing down? 😱

Lazy Loading sounds magical—it fetches related data only when you need it. But here’s the problem: use it blindly and BOOM 💥 your feed hits N+1 queries hell. Posts, comments, likes… all lagging.

💡 Pro Tip:
✅ Eager Load your main feed for speed.
✅ Lazy Load only small, non-critical data.

Result? ⚡ Blazing fast app ✅ Happy users ✅ Less debugging nightmares ✅

Comment below if your app has ever suffered from Lazy Loading chaos! 👇

15/12/2025

📊 Help Me Choose the NEXT Blog Post 🚀

I’m preparing my next in-depth C # / .NET article, and I want YOU to decide what I publish next.

👇 Vote in the poll below and help shape the content you want to read:

1️⃣ Caching in .net core
2️⃣ Dependency Injection Deep Dive (Scoped vs Transient vs Singleton – real cases)
3️⃣ Performance Optimization in .NET (memory, async, EF Core tips)

💬 Bonus:
If your idea isn’t in the list, drop it in the comments 👇
I’ll pick the most requested topic and turn it into a practical, example-driven blog post.

🙏 Thanks for helping me create content that actually helps developers.

08/12/2025

🔒 Securing Sensitive Data in .NET Core? Don't Hardcode Your Secrets!

As a senior .NET developer, I've seen API keys, passwords, and connection strings leaked in Git repos too many times. Disaster waiting to happen! 😱

Just published my complete guide covering:
✅ Secret Manager for dev
✅ Azure Key Vault + Managed Identities for prod
✅ Encrypting config sections
✅ Safe logging & Data Protection API
✅ Real C # code examples you can copy-paste

Perfect for .NET 9 devs building secure APIs!

👉 Read it here: link in first coment.

What’s your go-to method for protecting secrets? Secret Manager or Key Vault? Drop a comment! ⬇️

04/12/2025

🔥 Are you ready to build your own AI-powered chatbot? 🔥
I just published a complete tutorial on how to create a chatbot using DeepSeek and .NET 9! 🚀 Whether you’re a developer, maker, or tech enthusiast, this guide walks you through everything from setting up the project to writing the code.
👨‍💻 What you’ll learn:
• How to start an ASP .NET Core web app with .NET 9
• How to integrate DeepSeek’s API for conversational AI
• Sample code, models, and configuration details
• Practical tips and best practices
📖 → Dive into the full tutorial link in first comment.
💡 Why this matters: Building chatbots with modern frameworks + advanced AI is one of the most powerful ways to level up your projects — whether it’s for automating support, creating interactive experiences, or launching your next side-project.
📣 If you find it useful, drop a comment, share it with your dev peers, and let me know what you’d like to build next (voice bot? web-widget? IoT integration?). Let’s innovate together

22/11/2025

Are you a .NET, C #, or Azure developer wondering how to integrate AI and GPT-5 into your apps and workflows?
I’ve just published a comprehensive article that explains everything you need to know:

✅ What’s new in GPT-5 for developers
✅ How to use it with .NET, C #, and Azure OpenAI
✅ Real-world examples (BFF, APIs, Copilot integration)
✅ Best practices for AI-powered apps
✅ Security, cost optimization, and deployment tips

If you’re serious about staying ahead in the Microsoft ecosystem, this guide is a must-read.
👉 Read it now on my tech.

Link in first comment

💬 Tell me in the comments which GPT-5 feature you want to master first!

22/11/2025

New Technical Guide for .NET Developers!
Have you ever wondered how to make your API safe for retries — without duplicate requests or double billing?
In my latest article, I walk you through building a fully idempotent REST API usingNET 9, EF Core 9, and Polly v8 — from concept to Docker deployment.
You’ll learn:
What idempotency really means in HTTP APIs
How to use the Idempotency-Key header pattern
How to persist and replay responses safely
How to integrate retry logic with Polly v8
How to containerize your solution with Docker
Full GitHub project included
Read the full guide:

https://oussamasaidi.com/how-to-build-an-idempotent-api-with-net-9-ef-core-9-and-polly-v8/
If you’re building APIs that handle payments, orders, or external webhooks,
idempotency is not a buzzword — it’s a necessity.

Step-by-step how to create an idempotent API in .NET 9 using Minimal APIs, EF Core 9, and Polly v8. Includes retry logic, caching, Idempotency-Key pattern.

22/11/2025

🚀 Want cleaner, more professional API documentation?
I just published a new guide on how to build modern, interactive, and production-ready API docs using Scalar + .NET Core.
Whether you're a backend dev, API architect, or building your next SaaS project, this setup will level up your developer experience instantly. ⚡
🔥 What you'll get:
✔ Super clean UI
✔ Fast integration
✔ Interactive endpoints
✔ Perfect for real-world production APIs
👉 Read the full guide here:
https://oussamasaidi.com/building-professional-modern-api-documentation-in-net-core-with-scalar/
If you try it out, let me know how it works for you! 🙌

How to build modern, clean API documentation in .NET Core using Scalar. Full setup guide, code examples, customization tips, and SEO best practices.

20/11/2025

Arduino + Ultrasonic Sensor: Distance Radar with LEDs

Today let’s build something useful AND fun:
A proximity radar using an HC-SR04 + LEDs.

🔧 Hardware

Arduino Uno
HC-SR04 ultrasonic sensor
3 LEDs (green / yellow / red)
3 resistors (220Ω)

🔌 Logic
Green → object far (> 50 cm)
Yellow → medium (20–50 cm)
Red → close (

20/11/2025

Build a Temperature & Humidity Monitor (DHT11 + LCD)

Want to build a real Arduino project that collects data and displays it in real-time?
Here’s a clean setup using DHT11 + 16×2 LCD (I2C).

🔧 Hardware Required
Arduino Uno / Nano
DHT11 sensor
16×2 LCD with I2C
Jumper wires

🔌 Wiring
DHT11 → 5V / GND / Signal → D2
LCD → SDA → A4 / SCL → A5
(Power: 5V + GND)

🧠 What the code does
Reads temperature + humidity
Filters noise
Displays values on LCD
Updates every 1 second

Code in the first comment