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

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

#541

Post by fuzztester »

hiccuphippo wrote: post #300
alextousss wrote: post #24

My roommate and I are still working on Tornyol, our mosquito killing drone! It uses ultrasonic sonar to detect mosquitoes, and missile control theory to ram into mosquitoes and grind them in its propellers. Our target platform is a 40 grams tinywhoop so it’s safe to fly everywhere and makes almost no noise :). A Roomba for mosquitoes! The main plus compared to traditional systems is that a drone can cover an enormous…

Sounds cool but doesn't that send mosquito bits flying in all directions?

Yes, but mosquito bits are better than mosquito bytes.

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

#542

Post by ooloncoloophid »

My summer project for my comp sci MSc was an open source natural deduction helper tool for the Mac, called Baker Street. I let it lapse simply because I didn't have time to look after it, but now it's available for download once more: https://apps.apple.com/gb/app/baker-street/id1528304157

I've been working with Claude to bring some new features, like printing a proof - unsuccessfully! https://github.com/OolonColoophid/bakerStreet/issues/9

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

#543

Post by barrell »

eps wrote: post #535
barrell wrote: post #32

Still working on https://phrasing.app - an app for polyglots to learn over 120 languages in the most effective manner and a beautiful UI. Just finished a onboarding flow, now updating the search and create experience to fall more in line with actual usage from users, then hopefully prepping for a more public launch :) Had a fun week fixing up the application so it’s 100x faster on 5 different axes, and it’s starting…

"Error occured rendering base application" - on an older iPad.

If I am associating the right error, it’s because you’re missing a critical browser API. I will add an intercept to show a message instead of an error, but I won’t be able to support legacy versions of browsers while it’s just me unfortunately

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

#544

Post by red93 »

After over 6 years working on the startup I co-founded (which was fully acquired by a larger company in 2024, after they had bought a majority stake in 2022), I’ve been focusing on building a new company since the beginning of this year.

I’ve explored a few different projects since January but nothing stuck, now working on https://pitch31.ai a SaaS that turns any OpenAPI specs (or Postman collections) into a conversational AI agent, so you can work with APIs without the need of a UI.

We are still early on the product and looking for some user feedback to improve it. Planning to launch it on major platforms in the next month!

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

#545

Post by gniv »

ksh74 wrote: post #540

I have been working on building a site where you search by phrases which you have heard in some youtube shorts and are not able to remember which video was it, my project would give the users the videos in which the phrase has been said or mentioned

Like youglish but for more videos?

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

#546

Post by whytevuhuni »

thomasmg wrote: post #471

I'm working on a new memory-safe systems programming language that is supposted to be (almost) as fast as C, Rust etc, but as simple and concise as Python: https://github.com/thomasmueller/bau-lang There is a playground which is using a C compiler and WASM, and so is quite fast, while running fully in the browser. Theres also a (online) conversion tool to convert and compare source code. There are some benchmarks as…

The "Comparison" section feels unfair. Add some things that some languages have but Bau is missing. I have no idea what trade-offs I'd be doing when choosing Bau.

You have the "Non-Features" section of course, but I'm looking more into what I'd be losing by going from C to Bau. Bau's price for safety.

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

#548

Post by monsieurpng »

I’m working on LearnMathsToday, a mobile app that helps students learn math in a fun and engaging way. It’s self-paced, with AI-generated questions that adapt to each student’s level. One unique feature is AI-powered marking, which gives instant feedback on written answers. I’ve also added gamification—points, levels, and a storyline—to keep students motivated. Right now, the app is based on the Singapore syllabus, since I’m based in Singapore.

Feel free to try it by downloading here https://learnmathstoday.com/download/

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

#549

Post by adityaathalye »

m-a-t-t-i wrote: post #525
adityaathalye wrote: post #486

Earlier quoted context omitted.

Brilliant work! Zippers got nothing on this! I am particularly taken by how the "stich" weaves into itself, to flatten the seam. Now, what about footwear, I'm thinking. Stitched soles + uppers are so much more durable. If you could cut a sole to a person's foot size, then they could construct the upper to their best-fit, best-colour-combo design.

I've tried some footwear! These had a really soft rubber soles, but I've also made ones where the soles were cut from a sheet of hard Vibram rubber: https://self-assembly.fi/canvas-shoes

So cool! So, I buy this brand of thin-sole shoes called Xero. Their Do It Yourself kit is a simple Vibram sole I can cut to size, a hole punch to find the right fit, and a long lace that I can tie in many different ways, including as a slipper, or sandal, or greek-style laced-up huarache. Tie style, with different colour combinations of sole and lace make for distinctive personalisation.

Your stuff takes it to a whole other level. It makes me imagine a constructible footwear that can morph from a flip-flop (band across foot) all the way up to an all-weather knee-length boot.

No doubt you have already imagined how experimentation with materials and sealing/binding techniques could yield a design system that everyone can make their own; from the multi-spectral La Sape, to baby wear for those fast-growth years, to field equipment for the extreme adventurer.

(edit: fixed broken sentence)

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