Infrastructure and framework behind my personal websites

I decided to set up my own website at the end of 2020. 3 years later, I run 2 websites backed by multiple supporting services (see image below), all set up and operated by myself. My goals are (1) to set up a robust infrastructure that can ensure my websites/services are always up, and (2)… Continue reading Infrastructure and framework behind my personal websites

Excel + Office Scripts

If you have worked with Excel automation in the past, you may have painful memories working with complex Excel functions or VBA codes. Recently I realized newer versions of Excel support Office Scripts, which changes my impression of Excel automation completely. Some highlights of Excel + Office Scripts: ✔️ Can be run on the cloud,… Continue reading Excel + Office Scripts


A small titbit to share today, the Makefile. A Makefile can be used to define sets of commonly used commands to save time and to ensure the commands run in the correct order with needed pre-requisites. For example, you can define a list of build-related commands under a target called “build”. Then next time you… Continue reading Makefile

Rocket League reinforcement learning-trained bot

As a passionate gamer, I have been reading about the Rocket League Nexto cheat situation with keen interest ( For those unfamiliar with games, Rocket League is a competitive online game where players control cars to play football. Someone has built a bot trained via reinforcement learning, and offered it as a cheating solution to… Continue reading Rocket League reinforcement learning-trained bot

Timeline of LLM

“Classic quant signals might work, but you can’t explain them; ChatGPT might not work, but it can explain itself. In a sense this is the opposite of a classic “black box” machine-learning investment algorithm.” This is an interesting take by Matt Levine, on the ability of ChatGPT to be an asset manager ( One of… Continue reading Timeline of LLM