# David Z. Chen · Software & side projects

Source: https://davidzlchen.com/

SOFTWARE, SIDE PROJECTS & A LITTLE CURIOSITY

# Hi, I’m David. I like making things.

Useful tools, little games, and things just for the fun of it. This is a home for what I’m building and the interests behind it.

[Take a look around](https://davidzlchen.com/#projects)A few things I’ve made, all in one place.

THINGS I’VE BEEN BUILDING

## From idea to something real.

Made around things I enjoy.

### JustSkiing

Live lift and trail status, snow conditions, and a clearer picture of what’s happening on the mountain.

Skiing · Useful tools justskiing.info

[JustSkiing](https://justskiing.info)

### Pokémon Sleep Field Notes

Island milestones, familiar helpers, and supplies for the next good night. A record of quiet progress in Pokémon Sleep.

Pokémon · Research journal Explore the field notes

[Pokémon Sleep Field Notes](https://davidzlchen.com/pokemon-sleep/)

### SkiGuessr

A little geography game for skiers. Explore the photos, follow the clues, and name that ski resort.

Skiing · Little games Play a round

[SkiGuessr](https://skiguessr.com)

### Think in Odds

One probability puzzle a day. Five minutes to explore the surprising answers and build better intuition.

Probability · Daily puzzles thinkinodds.com

[Think in Odds](https://thinkinodds.com)

LATEST WRITING

![Pokémon Sleep Field Notes, illustrated with Ampharos, Latias, and Aggron](https://davidzlchen.com/pokemon-sleep/social-preview.jpg?v=field-notes)

October 3, 2026 · Build story

## How I built Pokémon Sleep Field Notes with Codex

How I built Pokémon Sleep Field Notes with Codex, and a template for making your own research journal.

Read the build story

[How I built Pokémon Sleep Field Notes with Codex](https://davidzlchen.com/blog/pokemon-sleep-repository/)

A LITTLE ABOUT THIS CORNER

## Built out of curiosity.

My projects tend to start with a small question: could this be more useful, more playful, or just a little easier?

Sometimes that turns into a tool for a day on the mountain. Sometimes it’s a game, a training companion, or a collection of sleepy Pokémon. This is where those ideas live.

Software Skiing Climbing Little experiments

KEEP IN TOUCH

## Always up for a good idea.

Find me around the internet.

[GitHub](https://github.com/davidzlchen)[LinkedIn](https://linkedin.com/in/davidzlchen)