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

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

#471
I've been working on mock:

https://dhuan.github.io/mock/

the process of creating APIs for testing and automation should be as easy possible. the tools that exist nowadays aren't good enough, they require you to use their programming language of choice or complex procedures for a task that should be simple. I built mock to try to solve that and still continue to maintain it.

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

#473
I taught my parents how to use LLM chat apps. I was pleasantly surprised to see them use it all the time. And even more shocked to see them pasting entire whatsap messages containing passwords, upload income tax files, and a lot more private details with LLMs. They rarely pause to think about privacy/security before sharing info with LLM services. So I'm working on an interface that works as a privacy filter, making sure the private info does not leave the device. It redacts /anonymizes/obfuscates private information from what we share with LLMs via on-device model, and plugs back the output with the private info to make it appear almost similar to the output as before.

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

#474
I'm working on my epidemic modeling package in Python: https://github.com/DataForScience/epidemik (also https://pypi.org/project/epidemik/).

Currently adding support:

- loading/saving models

- model library

- simple math in parameter definition (for example, defining beta=2*eta, where eta is defined previously)

- viral intra-host models

- demographics

- arbitrary seasonality functions

The goal is to have it all ready for when my Cambridge epidemic modeling review gets published in a couple of months.

It's my first serious package, so I would love any feedback

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

#477

I live next to a school, so there's a low speed limit (30 km/h). Still, people drive like race drivers and the city hasn't ever responded to the residents' hopes of introducing a speed camera. I wanted to have some data on how many people speed, the max speed recorded, that sort of thing. Things the city should be doing after many complaints of dangerous driving and people being almost killed on zebra crossings. I ha…

I'm starting to think about a similar thing for noise. The noise of motor vehicles seems to be out of control and I am sure it is causing misery for the majority of the population who have to live near roads. I reckon a single loud motorcycle could disturb tens of thousands of people, potentially waking or startling them, raising blood pressure etc. in a single 10 minute trip. Unfortunately I think awareness of this…

> I reckon a single loud motorcycle could disturb tens of thousands of people, potentially waking or startling them, raising blood pressure etc. in a single 10 minute trip.

What absolutely grinds my gears is when a loud motorcycle or sports car drives through my residential neighborhood right after patiently rocking my baby to sleep.

Interestingly, as a motorcycle and sports car owner myself, I never thought about that aspect for even a second until I became a dad—I drive much more gently nowadays (especially in residential neighborhoods)!

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

#478

Firefly is a typed full stack programming language: - object capabilities - implicit async/await - immutable collections https://www.firefly-lang.org/ It's small and (hopefully) fun, and quite usable already. If you try it out, please share your thoughts!

Firefly language looks simple and beautiful.

Thank you!

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

#479
I'm working on AudioDiary which is next-gen journalling app https://audiodiary.ai

Recently it got a surge of users (1k+ reviews on Google Play and 500+ reviews on Apple, really sucks that Apple don't show all reviews, but you can check the Google reviews here on desktop https://play.google.com/store/apps/details?id=me.audiodiary....) and people are writing in every day to say how much they love it and that it's changing their lives.

Also working on a new app in a similar vein that's way more technically complex and uses AI in a hands-on way, and looking for help on it.

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