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Ask HN: What are you working on? (March 2025)

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441–450 of 1001 posts

Re: Ask HN: What are you working on? (March 2025)

#441
Working on a full on Riichi Mahjong web client because I really like the game and want to make a more serious english client without anime.

Did it also to learn rust, which made it easy to convert the engine code into webassembly and create a hand score calculator for the game :)! https://cerpins.com/mahjong-tool

Plans now are to finish the client, then freshen up the calculator with some QOL and visuals, surely a bug fix might be needed here and there as well.

Re: Ask HN: What are you working on? (March 2025)

#442
As a native Spanish speaker, I often used ChatGPT to improve my emails in English. It was very time-consuming having to type the same prompt multiple times in a day to set my writing style and format. That's why I decided to build an app to simplify my process. You can set the style and format just once, and with a single click, you can improve your text. You have the option to include the email thread or any relevant context for a more personalized improvement. Additionally, I've included features designed specifically for non-native speakers, like tone detection and the ability to request a few different alternatives for any word/phrase. And of course, you can talk directly with the AI to create a draft or modify the text. Check it out: https://talktext-ai.web.app/

Re: Ask HN: What are you working on? (March 2025)

#443
Finishing up my PhD thesis on low-resource audio classification for ecoacoustics. Our partners deployed 98 recorders in remote Arctic/sub-Arctic regions, collecting a massive (~19.5 years) dataset to monitor wildlife and human noise.

Labeled data is the bottleneck, so my work focuses on getting good results with less data. Key parts:

- Created EDANSA [1], the first public dataset of its kind from these areas, using a improved active learning method (ensemble disagreement) to efficiently find rare sounds.

- Explored other low-resource ML: transfer learning, data valuation (using Shapley values), cross-modal learning (using satellite weather data to train audio models), and testing the reasoning abilities of MLLMs on audio (spoiler: they struggle!).

  Happy to discuss any part!
[1]https://scholar.google.com/citations?user=AH-sLEkAAAAJ&hl=en

Re: Ask HN: What are you working on? (March 2025)

#444
post #77

Have been building drawDB[1] for a while now. It's a database schema visualizer. Currently working on adding support for oracle databases. Wrote a parser[2] to allow importing from oracle sql. Have been struggling with motivation though, the pieces are pretty much there but I've been procrastinating on putting it all together. This has been my main side project for almost 2 years now.. I miss the feeling of novelty..…

Seems useful, why isn't this more popular?

Re: Ask HN: What are you working on? (March 2025)

#445
I released an iOS app last October for users who use Apple Watch to record their workouts - https://mergefit.itwenty.me

It lets users merge two or more workouts into a single one. There have been times when I have been out riding, hiking or whatever and accidentally end the activity on my apple watch instead of pausing it. Starting a new workout means having your stats split across the two workouts.

The "usual" way to merge such workouts is to export all of them to individual FIT files, then use a tool like fitfiletools.com to merge the individual FIT files. You then have a merged FIT file, which is difficult to import back into Apple Health. This process also requires access to the internet, which is not always guaranteed when out in remote areas.

MergeFit makes this process easy by merging workouts right on device and without the need to deal with FIT files at all. It reads data directly from Apple Health and writes the merged data back to Apple Health.

The app reached a small milestone a few days ago - crossing 1000$ in total sales.

Re: Ask HN: What are you working on? (March 2025)

#447
I love playing solitaire card games. But got sick of all privacy intrusive, subscription, ad-riddled crap out there. So I combined learning macOS/iOS development with doing my own games the way I want them (currently Klondike and Spider); https://menubar.games (originally I intended them to only be accessible through the menubar, but got carried away when I realized how easy it was to make iOS versions).

Will continue to refine and possibly do more - love iterating and polishing as a way to learn.

Re: Ask HN: What are you working on? (March 2025)

#449

I'm working on pure.md[1], which lets your scripts, APIs, apps, agents, etc reliably access web content in markdown format. Simply prefix any URL with `pure.md/` and you get the unblocked markdown content of that webpage. It avoids bot detection and renders JavaScript-heavy websites, and can convert HTML, PDFs, images, and more into pure markdown. pure.md acts as a global caching layer between LLMs and web content. I…

Love the recursion redirect at pure.md/pure.md

Re: Ask HN: What are you working on? (March 2025)

#450
Highlights.Email [1] - a service to email yourself book highlights from your Kobo E-Reader!

Exporting book highlights from a Kobo was slow and inconvenient; you’d need to connect the device to your computer via USB and run a script, or upload the onboard sqlite database to a website to extract book highlights. With Highlights.Email, you tap a button on-device and in a few seconds have a nicely formatted email with all your book highlights!

So, I’m just scratching my own itch mainly while learning how to build and launch something to the world. There’s two parts to this service: Rust program that runs on-device and a SveltKit app (w/ a Supabase backend) for auth and sending emails.

[1]: https://highlights.email

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