Today I learned on Hojae Lee

Using the ZSA keyboard

Sun, 18 Oct 2026 00:00:00 +0000

Okay, this might be a bit short because I’m still learning how to use the keyboard.

This post summarizes the first and second day well. I was indeed also confused where the question mark was, haha. Great for touch typing, and indeed very ergonomic. The problem is coding. This is the customization I have done so far, to make it as similar to my existing Keychron as possible.

I made the dotfiles repo public!

Tue, 13 Oct 2026 00:00:00 +0000

In the spirit of working in public, after Organizing my ~/.zshrc file and Syncing dotfiles between Mac and Linux with chezmoi , I have finally made the dotfiles repo public! 🎉

Syncing dotfiles between Mac and Linux with chezmoi

Sat, 10 Oct 2026 00:00:00 +0000

Today, as alluded in the Organizing my ~/.zshrc file post, I got to revive my chezmoi usage. This was mostly because I finally set up my Arch Linux box with an NVIDIA RTX 3080 GPU that I could ssh into from my Mac, and I wanted to sync my dotfiles between the two machines.

Hello, Rust!

Tue, 06 Oct 2026 00:00:00 +0000

I’ve been seeing a lot of buzz around Rust for a while and wanted to try it out. I’ve followed a few chapters in The Rust Programming Language , and it is absolutely delightful to work with so far.

Organizing my `~/.zshrc` file

Sat, 03 Oct 2026 00:00:00 +0000

I feel like organizing ~/.zshrc file is the digital equivalent of organizing your drawer. After a while, you realized you gathered some weird pins, coins, and utensils you never use. Or in the case of ~/.zshrc, you find weird aliases, exporting PATH all over the place, API tokens (don’t do this), etc. They are also not the most urgent things to clean, but once in a while it feels good to take everything out and put them back in. 😅

AI and Thoughtfulness

Tue, 29 Sep 2026 00:00:00 +0000

With the advancements of LLMs, there are more and more vibe-coded or AI-assisted programs and apps coming out. On occasions, I browse “Show HN” of Hacker News, where developers and non-developers alike share something they created online. There seems to be a distinct trend where some people would not even try the software if the landing page looks even remotely AI-generated, regardless of whether the actual underlying software was good or not.

The Normalizations I wanted to look into

Mon, 28 Sep 2026 00:00:00 +0000

After my Swish and SwiGLU adventure, I wanted to do another set of chronological reading, this time on normalization techniques. Much like the activation functions, these are very commonplace in deep learning architecture, but beyond BatchNorm I hadn’t sat down to read these as a group to parse out the use cases and the limitations that subsequent techniques answer.

Swish and SwiGLU

Sun, 27 Sep 2026 00:00:00 +0000

Yesterday I had the joy of randomly reading papers that introduced Swish and SwiGLU . Recently, I decided I wanted to update my knowledge of deep learning from around 2020, when I pivoted slightly more towards generative models (diffusion and GANs) and neuroscience to complete my PhD. I knew there were a lot of exciting things coming out that I’ve heard of, but haven’t had a chance to sit down and read.

Playing with `vim-surround`

Sat, 26 Sep 2026 00:00:00 +0000

Somehow, coming across an IDE called Helix has made me want to explore more Vim again.

I do have Vim enabled in many of the apps that I use, namely:

Playing with VisPy

Fri, 25 Sep 2026 00:00:00 +0000

I somehow came across this beautiful visualization of strange attractors written in Three.js. Then I remembered VisPy , a scientific visualization package in Python that I heard of in context of Vedo . We use Vedo for visualization at the Thousand Brains Project , so I decided to poke around the VisPy API and write some code without using LLM.¹

Workspace Launcher in Raycast

Fri, 25 Sep 2026 00:00:00 +0000

I asked ChatGPT today apps for Workspace Launchers, and suggested creating a custom Layout in Raycast . It also suggested other apps like Bunch .

For those who are not familiar with Workspace Launchers: I think of it as a Shortcut to open pre-specified apps, e.g. a “Work” Layout may open an IDE, Slack, GitHub, etc.