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

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471–480 of 1001 posts

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

#471
post #59

I'm working on Cali Challenge. A calisthenics workout app with a daily challenge that gradually increases in difficulty. It guides you through the different progression levels of core calisthenics moves like push-ups, pull-ups, and dips.

I would use that!

Awesome! If you don't mind, I'll drop you a DM when I've got a beta version ready.

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

#472

I’ve been building https://lowlow.bot , it tracks price changes on any website. I was inspired by https://camelcamelcamel.com , but wanted something that worked for more than just Amazon. It’s been handy for big purchases I’m ok waiting for and stocking up on recurring non-perishable essentials when they go on sale. It also lets me know when something has come back in stock.

I’ll use it!

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

#473
Inspired by the Dobble card game, a friend and I built an iOS version where the symbols are emojis! You can customize the difficulty with options like “only green emojis” or other themed sets.

We don’t want to put ads in the game, but we’re exploring ways to add non-free features to make a little money from it. Has anyone done something similar? Any insights or past experiences with monetizing a casual mobile game would be really helpful!

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

#474

We're building the killer app for books Starting with a native iOS app to to track and discover books [1] Focusing on notetaking and cozy social this year as we try to grow from 100k to 1m+ users [1]: https://apps.apple.com/us/app/id6737528718

Neat. Will try :)

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

#475

A tool for learning German via reading. The main feature is click a word to see its dictionary entry (not always easy with so many declensions). Flashcard creation from the dictionary entry. Real human spoken audio from Wiktionary. Will be working on some LLM features soon (explain "X" in the sentence "Y" prompt). It'd be nice to get a word frequency ranking dataset integrated, so I don't waste time learning rare wor…

I’d check this out

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

#476
I'm building https://www.themoonlight.io/en with a small team of four - it s an AI aided PDF reader, designed to make research papers more accessible :)

Lately, I've seen a growing interest in academic content from non-researchers, so I'm focusing on features like automatic summarization and LaTeX math explanation to lower the barrier. I hope this helps more people engage with research and ultimately push global innovation forward.

If anyone is interested, here's a quick 1 minute demo: https://www.youtube.com/watch?v=L1i8Yp_APbg Feedback is always welcome!

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

#477
I have a good understanding of how to create likely-correct software: https://www.osequi.com/studies/list/list.html

Now I'm learning AI/LLMs from the perspective of correctness. So far I have two 'maxims' to guide me:

- AI shines where humans struggle (for prompt engineering)

- An LLM is nothing but an API call (for software engineering with AI)

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

#479
I'm still working on Habitat. It's a free and open source, self-hosted social platform for local communities. The plan is for it to be federated, but that's a while off yet.

I finally cracked ansible/docker-compose provisioning on Ubuntu and plan to expand that out to support Debian also. The groundwork is there. I can finally see an official release in the distant horizon, I just need to put those quality of life features in now, like the ability to delete your own account, change your email address, notifications on comments and all that stuff.

- The idea: https://carlnewton.github.io/posts/location-based-social-net...

- A build update and plan: https://carlnewton.github.io/posts/building-habitat/

- The repository: https://github.com/carlnewton/habitat

- The project board: https://github.com/users/carlnewton/projects/2

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

#480
I'm working on Torch Lens Maker [1], an open-source Python library for differential geometric optics. The goal of this project is to design optical systems with modern numerical optimization (PyTorch autograd). The website has a detailed roadmap of what I have planned.

I also had a recent blog post [2] do fairly well on HN, and now I'm kinda thinking about a new design for version 2 of that project because I can't help it I guess.

[1] https://victorpoughon.github.io/torchlensmaker/

[2] https://victorpoughon.fr/i-tried-making-artificial-sunlight-...

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