(Updated on 20220712) Metaverse is still a buzzword. No clear definition on what it is and how it is going to change our world. Many movies have already explored these concepts. Ready Player One was back in 2018 and Free Guy was in August 2021, well before Facebook became Meta. …

(Updated on 20220528, fixed the sudo usage, thanks for feedback. support current LAMP droplet image with PHP8.1; works on Ubuntu 20.04 LTS as well as 18.04 LTS, also, thanks to feedback from readers, can run on Amazon Linux 2, CentOS 7, Debian 9 and Ansible. I have included snippets at…

(Updated for Fabric 2.4.4 and Ubuntu 20.04, easily work with v2.2.3 LTS and v1.4.12 LTS too, still less than 3 mins to read, 5 mins to install! But try not to use the $5 1GB RAM instance with 2.3.x, …

Since early 2023, ChatGPT has been a hot topic in the tech world. There is still much discussion on how AI will affect the employment market and possibly society as we know it. But let’s leave these larger issues aside and concentrate on how to best use the new tool. …

Since my HODL+ article, I have been playing with the Rebalancing Bot as well. And now sharing notes on my experiments so far. Left the bots running for a month or so already and the early results are not bad. Read the disclaimer at the bottom (if you really need…

(Still editing, stay tuned.) Over the past few years, I have been asked a few times to talk about how to use blockchain for product authenticity and traceability. So rather than repeating it many times, I am finally ready to share my notes here. Not exactly the full deck and…

(Updated 2023/05/01) Just sharing notes on my recent experiments with tradebot for crypto trading. I think I am getting closer to what I want for crypto winter (horizontal market). …

Sharing notes from our AI and Machine Learning study sessions with new developers. We run these induction sessions when we have new coder joining our team, covering key tech topics all coders should know like AI, Blockchain, Cloud and Big Data, as well as other hot topics like Crypto, Metaverse…

(Updated 2023/04/23) Just sharing some tips on how I automate my workflow on Mac and iOS. I use a combination of Shortcuts, Automator, Apple Script and Shell scripting. It’s not very technical and you don’t need to know how to code, you just need to play around with these apps…