TLS 1.3: What Changed and How to Migrate

Hey defender! 👋

TLS 1.3 isn’t just another protocol version. It’s a revolution in internet security: faster, more secure, simpler.

But migrating from TLS 1.2 isn’t just updating a config. You need to understand what changed, what will break, and how to migrate properly.

Let’s explore key TLS 1.3 changes, practical examples, and a step-by-step migration plan 🚀

Builder Pattern in Go: Step-by-Step Construction of Complex Objects

Builder pattern separates object construction from its representation. It allows creating different representations of an object using the same construction process.

Here’s how to implement it properly in Go with real-world examples.

Observer Pattern in Go: Event Subscription Implementation

Observer pattern is one of the most useful behavioral patterns. It establishes one-to-many dependency between objects: when one object changes state, all dependents are notified automatically.

Here’s how to implement it properly in Go with real-world examples.

PostgreSQL Random Data Generation

Hey developer! 🎲

Need to generate promo codes for a campaign? Create a million test users? Or just mask production data for development? PostgreSQL can do much more than just SELECT random().

Let’s explore how to turn PostgreSQL into a random data generator for real-world tasks.

Redis as Message Broker: When It's Better Than RabbitMQ

Redis is often perceived only as a cache. But Redis is a full-fledged message broker that in some scenarios works better than RabbitMQ, Kafka, and other specialized solutions.

Let’s figure out when Redis is the right choice, and when it’s better to take something else.

Toxic Employees in IT: How to Work With Them and When to Fire

Hey manager! 👋

Do you have “that one” developer on your team? Who is technically strong but poisons the atmosphere? Demotivates colleagues, sabotages processes, and creates conflicts?

Toxic employees aren’t just “difficult personalities.” They’re a systemic threat to team productivity. One toxic developer can reduce the performance of an entire team by 30-40%.

Let’s break down how to recognize, work with, and make decisions about toxic employees in IT 🚀

NSQ: The Perfect Message Queue - When Redis Isn't Enough)

Hey distributed systems architect! 🚀

Tired of Redis queues losing messages? Fed up with RabbitMQ’s complexity? Need something that just works at scale? Meet NSQ - the message queue that powers Discord, Bitly, and other high-traffic systems.

While others struggle with queue complexity, you’ll learn when NSQ is not just useful, but absolutely perfect for the job.