
andy pai
builder, puerto rico
purpose
I like to build while learning. These TILs are usually my notes converted into something shareable. Future-me thanks past-me for the reference but hope you find something useful as well.
Full disclosure, my workflow is usually curiosity → notes → LLM polish → publish.
topics
recent tils
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Using Cloudflared Database Tunnels in GitHub Actions
Automating Cloudflared database tunnels in GitHub Actions for secure database connections.
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How to Test GitHub Actions Locally Using act
Setting up and testing GitHub Actions workflows locally with `act` for smoother deployments.
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Parallel Development with Git Worktrees and Codex CLI
Exploring how to use Git worktrees and the Codex CLI to develop multiple features concurrently.
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Notes from Duolingo Founder No Priors Interview
Duolingo's CEO shares some surprising retention tactics and insights into the future of education and AI.
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Why Cross‑Entropy Still Rules Loss Functions
Negative log‑likelihood beats MSE for classification—here’s an intuitive recap