Daily Recap - 2026-01-23

Building a Vibe Coding Tool: Polymo - Day 1

I'm planning to build a vide coding tool using Spec-Driven Development.
Today, I prepared the groundwork and built the base code.

[tiny experiment] Create a Transformer from scratch - Day 2

📚 Text:
"Let's build GPT" by @karpathy

✏️ Note:
Today, I learned about lower triangular matrices.
I’m amazed they can replace a for loop.