Ask HN: What are you building during the holiday break?

A time for family, or avoiding family, depending on the family. ;-)

6 comments

Built "Kirby Sky Jumpers" with my two kids just yesterday. It's a 2 player jumping game where you collect stars and bounce off clouds to rack up the highest score before time runs out.

Players manage an energy bar to jump, land on clouds for super bounces, and you can throw bombs at each other to steal points and cause chaos. Vanilla HTML/CSS/JS, no dependencies, ~1000 lines in a single file.

The kids designed the characters (Kirby and Kee Kee) and we had a blast playtesting together... tweaking cloud bounce physics, adding a tie screen for when scores match, bumping bombs from 3 to 5. Kid-driven game design is so much fun.

Try it here: https://kirby-sky-jumpers.mfelixstudio.workers.dev

Controls: WASD + L-Shift (P1) / Arrows + R-Shift (P2)

Please give us some feedback on how to improve!

Side project for fun, without profit. I'm building a manually curated catalog of videogames made by the HN community: https://hackernews.games/

Also I plan to build other fun mini-projects and write a couple of blog posts currently sleeping in my backlog.

Polishing my website (https://dvsj.in) and building a PRM for myself (CRM, but personal). I have a _very_ bad memory unfortunately!

[Request for help]

I'm also building a Mac app that helps automate frequent actions. Eg: 1. Open a URL in a browser, switch to tab if it exists already 2. Open a bunch of apps (VSCode project, Slack, Github on web) 3. Copy last error stack trace from Chrome 4. Open VSCode, switch to the terminal where Claude Code is opened

1, 2 are trivial with AppleScript.

How would you approach 3, 4? A browser extension and a VSCode extension that communicates with the Mac app might work, but wouldn't scale for more apps (and is a maintenance nightmare)

I may not be understanding the the context of #3 (Javascript console, page contents showing traceback?), but I'd be looking at MCP servers for Playwright or https://github.com/VibiumDev/vibium or that browser automation MCP that I think Google announced a month or so for Chrome and the name of which escapes me.

Thank you, will check it out! :D

I'm building a voice assistant that does things for me (basically computer use with extra steps). Ideally no LLM involved for execution.

I'm trying to start with common commands: "open HN" "open Claude" "Copy paste errors into IDE claude (which copies trace from Chrome and pastes it into the integrated IDE terminal)"

Hammerspoon maybe?

Thanks, that's pretty cool! Haven't seen that before.

Building https://floxtop.com, a native Mac app that organizes your files.

It looks inside each file to see what it’s about, then moves it to the right folder for you.

Everything happens on your Mac, so nothing leaves your computer. No clouds, no servers.

It works in 50 languages (including English, German, French, Spanish, Swedish) and with images (OCR and object recognition), PDFs, Microsoft Office, ePubs, text, Markdown, and many other file types.

For messy folders anywhere on the Mac, Floxtop can help.

How do you make sure that the folder structure is helpful and it doesn't just shuffle my files around in places I will never find them?

Floxtop never creates or changes your folder structure. You decide where files should live by creating categories. A category has two things:

1. A short description of what kind of files belong there

2. A specific folder on your Mac as the destination

When you drop unsorted files into Floxtop, it looks inside each file, understands what it’s about, and compares it with your categories. Instead of picking a single place, Floxtop suggests the five most likely destinations, ordered by confidence.

Nothing happens automatically:

- Files are never moved on their own

- You review the suggestions and decide what gets moved

- If a file doesn’t clearly belong anywhere, it stays untouched

Floxtop helps you decide where things belong — the final action is always yours.

I’m spending my break polishing Sentialytics.

It’s a tool born out of my own frustration with "heavy" HR suites. I’m convinced that frequency beats depth when it comes to team health, so I built a 30-second weekly pulse to track sentiment and operational friction.

Nothing, I am relaxing.