Hi there, I’m Wuguang

Recently, I came across a gem that I would like to share. It’s a book titled “𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗘𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲𝗹𝘆 𝘄𝗶𝘁𝗵 𝗟𝗲𝗴𝗮𝗰𝘆 𝗖𝗼𝗱𝗲” by Michael Feathers. If you are a software engineer, you will inevitably deal with legacy code such as ancient codebases, code developed by someone else, or even code written by yourself weeks ago that you’ve forgotten about it. 𝗛𝗲𝗿𝗲’𝘀 𝘄𝗵𝘆 𝗜 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱 𝗶𝘁: • Practical techniques: Proven methods to effectively understand, test, refactor and make changes to legacy code without introducing bugs. • Inspirational: You will no longer fear making changes. Work with confidence to improve the maintainability of legacy code. ...

Software engineers constantly face a crucial question: Should I develop my knowledge across many technologies or develop deep expertise in a few areas? 𝗧𝗲𝗮𝗺 𝗕𝗿𝗲𝗮𝗱𝘁𝗵: Adaptability: Able to get up to speed quickly and contribute to projects. Collaboration: Better understanding of various teams’ concerns. Problem solving: Able to connect disparate problems and find innovative solutions. Career flexibility 𝗧𝗲𝗮𝗺 𝗗𝗲𝗽𝘁𝗵: High impact: Able to deliver results in a short time with cutting edge solutions. Expertise and mastery: The defacto subject matter expert. Career advancement: Specialists are often sought after for more senior roles and top positions. Ultimately, it depends on your career aspirations and the needs of your organization. However, there a few considerations: ...

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗶𝘁? Lombok is a Java library which auto generates boilerplate code through the use of annotations. It can generate code for getters/setters, 𝚎𝚚𝚞𝚊𝚕𝚜(), 𝚑𝚊𝚜𝚑𝙲𝚘𝚍𝚎(), 𝚝𝚘𝚂𝚝𝚛𝚒𝚗𝚐() and even constructors/builders. 𝗪𝗵𝘆 𝘂𝘀𝗲 𝗶𝘁? It eliminates boilerplate code which leads to… Improve readability since there is less clutter and also makes pull requests easier to review. Increased productivity and frees up your time to focus on core business logic. An example ...

31 March is World Backup Day. It’s a reminder to backup your data or risk losing them forever. Backup your data. Keep your backups up-to-date. Verify your backups. Encrypt your backups.

SkillsFuture SG is an initiative by the Singapore government to upskill workers. With credits expiring at the end of 2025, this is our last opportunity to use this benefit to develop our skills. Here’s my opinionated list of the most important certifications for the IT industry. Scrum / Agile ITIL CompTIA Any of Azure/GCP/AWS cloud certifications What are you thoughts?

Introduction This is a quickstart guide for using ComfyUI to generate AI art using text prompts (i.e. text-to-image). Unlike other tutorials, we are just going to jump into the fun part of generating images without spending hours going through AI concepts. What is ComfyUI? ComfyUI is a free web-based app for generating images/video/audio using workflows. Workflows consists of nodes (processing steps) and edges (“lines”) connecting nodes via their inputs/outputs. An over simplified explanation: ...

It’s a long weekend and I was bored so I generated some random AI art to entertain myself. I used ComfyUI and ran some small models on my PC. You might be wondering why not use ChatGPT / Co-Pilot / Gemini? Here’s why: It’s free and there are no queues since you are generating the images on your own hardware. You are not limited to specific image sizes or aspect ratios. You are not limited to text-to-image prompts. You can generate image-to-image and even videos too. You can use a wide variety of models. There are models which are good at generating photo-realistic images, models good at anime style images, etc. Here are some samples that I generated: ...

I’ve created a new personal website: https://hanwg.top My mentor/coach said I should I should have a presence online so here it is. It’s quite barren at the moment since I only started posting a few days ago but hopefully it will be filled with tech stories after a few years. I didn’t use any of the mainstream platforms such as Medium or WordPress since ads suck and I don’t want to pay for any subscription. Hence, I created my site using the following free tools: ...

I’m overjoyed that I’ve obtained the Amazon Web Services (AWS) DevOps Professional, Solutions Architect Professional and Security Specialty certifications. I did the certifications because I wanted to validate my skills after working on projects on AWS for a number of years. I passed the exams in a single attempt within a month and would like to share some tips: Lots of hands-on experience - Throughout the course of my work, I had to use a broad range of AWS services to deliver my projects. This helped me understand each service well and how various services work together (i.e. the architectural aspect). Such knowledge simply can’t be gleaned from rote memorization of documentation. You’ve got to get your hands dirty and try to build a system. ...