Series
🧠 Mindset
When I lost my FB and identity crisis
Who am I…?
what crypto VCs actually want in founders (but won't tell you)
Crypto was once seen as a frontier of freedom — a place where anyone could build and innovate without permission. But by 2025, that spirit has changed.
2024 - Year in Review
It was a crazy year filled with confusion, worry, excitement, action, failures, healing, and growth.
Looking Back on a Year of Loss: Acceptance and Letting Go (2023)
As the year draws to a close, I find myself feeling a gentle, bittersweet current flowing within me. The unexpected turns, the moments of joy, and all the faces that have crossed paths with mine over the past year replay in my mind, one after another, like scenes in a movie.
2023 year in review
Matthew 7:7 "Knock, and it shall be opened unto you".
Some Thoughts on Dopamine
Although recognizing and cultivating happiness may seem like a small thing, it can be surprisingly difficult to recognize what makes us happy and maintain the habits that bring us joy. From my own experience, I'd like to share a few simple practices that have helped me find more joy and happiness in everyday life…
The Village of Eight “Nots” — Dak Nong, Vietnam
Nestled among winding mountain ridges, this Hmong ethnic minority settlement seems to have been completely forgotten by time. It is known as the Village of Eight “Nots” because it has absolutely no name, no electricity, no roads, no medical station, no clean water, no phone signal, no household registration, and no birth certificates…
Some thoughts on Freedom
Lately, people have been hearing more and more about “financial freedom,” while many young people are choosing freelancing in pursuit of a freer lifestyle…
From Zero to 0
To be honest, I could sum up my 4.5-year journey at HCMUT in four words: “From Zero to 0.” Why? Read on to the end to find out…
Graduating Late — On My Own Terms
From the very first days of my journey at HCMUT, I was obsessed with the idea of “graduating on time.” I worked tirelessly to complete the entire curriculum within four years. And…
What Did 2022 Teach Me?
Thank you, 2022, for giving me another chance to breathe, to live, and to make a contribution to this world…
What Do We Work For?
Some reflections from my journey through the working world…
⛓ Web3
What’s going on with Blockchain in 2026?
What’s going on with Blockchain in 2026?"
I was hacked 2,500$ from hot wallets
This week, I was hacked and lost a total of $2,500 worth of tokens from 2 Metamask accounts from the same seed wallet. The stolen assets included over 0.5 ETH and several altcoins across Ethereum, Base, and Arbitrum networks.
Some thoughts on Blockchain
I don't know how far Blockchain will develop or what it will ultimately achieve. However, based on my current perspective and understanding, I believe the road ahead will be filled with exciting opportunities and challenges worth looking forward to.
What Are Blockchain Layers and Scaling Solutions?
Recently, we’ve been hearing a lot about Web3.0, often described as the next revolution in the evolution of the Internet. But is the current Blockchain infrastructure truly ready for this revolution...?
Database
[MongoDB – Part 4] Hands-On MongoDB Sharding: Deployment and Configuration
Hands-On MongoDB Sharding Across Multiple Servers
MongoDB Sharding: Theory, Architecture, and Data Distribution (Part 3)
MongoDB Sharding: Theory, Architecture, and Data Distribution (Part 3)
What is Elastic Search?
If you're looking for a powerful and flexible search solution for your project, or a toolkit to manage logs across a system with multiple services, Elasticsearch might be exactly what you need. Elasticsearch is an open-source search and analytics engine specifically designed to process, search, and visualize large volumes of data at high speed.
Deploying MongoDB with Docker on DigitalOcean (Part 2: Replica Set — Same VPS)
Tutorials cấu hình MongoDB replication…
Deploying MongoDB with Docker on DigitalOcean (Part 1: Standalone)
Basically config MongoDB Standalone…
Backend
Aligning Software Architecture with Business Models in 2025 — My Thoughts
An overview, sharing some brief insights and personal thoughts on three architectural approaches.
[Golang in real combat] - My favorite gist
I'm a Node.js developer with over three years of experience who recently made the transition to Golang for Backend development
Scaling WebSocket Servers
In this article, we'll explore the challenges of scaling WebSocket infrastructure and the key solutions to overcome them, with the goal of building a multi-server WebSocket cluster that meets real-world requirements.
What is WebSocket?
Socket is a popular library that provides powerful real-time communication capabilities using WebSocket and other transport mechanisms. In this article, we'll explore the WebSocket protocol and cover the fundamentals of the Socket.IO library.
Differences Between Webhooks, WebSockets, Pub/Sub, and API Polling
Webhook, WebSocket, Pub/Sub, and API Polling are common approaches to real-time data exchange that developers can choose from based on their specific requirements and goals. As an engineer, it's essential to use the right tool for the right problem; otherwise, you risk overengineering a solution or applying a particular technology where it isn't necessary.
[JS/TS] Do I Truly Understand the Programming Languages I Use?
[JS/TS] Do I Truly Understand the Programming Languages I Use?
How I Published My First npm Package
How I Published My First npm Package
Devops
Maybe you missed these 12 awesome Git commands
Let's explore 12 Git commands that might just surprise you with their usefulness and efficiency.
Git Rebase vs Git Merge
In this article, we'll explore how Merge and Rebase work, compare their advantages and disadvantages, and develop a clear understanding of their benefits and potential risks when applied to different real-world scenarios.
An Open Mindset for High Availability System Design
The Mindset Behind High Availability System Design