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

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

#621

Post by czhu12 »

Been building HelloCSV - an open source FlatFile alternative. I've been building this for work and the folks at work were cool enough to let me just build it in open source.

https://hellocsv.github.io/HelloCSV/

It basically runs 100% on your / your users browser, and I'm adding localstorage support so the user can refresh their page without losing their progress.

Love flatfile but it sends your data to remote servers, and we're a healthcare company, so we need to have full control over our data storage

Hoping someone on here will find this useful!

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

#622

Post by jraby3 »

698969 wrote: post #616

I'm preparing my t-shirt store for launch soon. I was having trouble meeting people after moving to a new city so I designed and printed some goofy funny t-shirts for my wardrobe, and that has really helped on getting the ball rolling on conversations. Hoping to make the launch within the next few weeks.

What are some examples? I'd love to check out your store but I'm worried by the time you launch this post and any communication with you will have vanished to the ether.

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

#623

Post by thoughtpeddler »

linsomniac wrote: post #544

I used "Claude Code" to create a local-only webapp for tracking symptoms of my chronic sinusitis, which seems to be tricky for the doctors to figure out, over time, using the "Sino-Nasal Outcome Test" (SNOT-22) questionnaire. Trying to correlate environmental and medical factors and interventions with raises or decreases in my symptoms. https://snot-22.linsomniac.com/

This is awesome! I suspect I have vasomotor rhinitis and could use something like this to track the same sort of sinusitis-type symptoms. My nose basically hasn't stopped being wet and runny for the last 20 years. Two questions: (1) Where is data stored? (2) Are you comfortable sharing an open repo on GitHub?

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

#624

Post by andris9 »

rchowe wrote: post #30

I have two: The first is a preventive maintenance and calibration tracker ( https://pmcal.net ) that was born out of my day job as an engineer in small business manufacturing. The second is an AI engine for pulling structured data out of incoming email (either via IMAP on your email server or via SES). If you think of the engine that powers TripIt, they had to write about 10,000 different ingestors for each airline a…

You can also get structured data out of mailboxes with my project EmailEngine. You can use an API request to fetch message contents, or you can configure EmailEngine to send a webhook for every new email in a structured JSON, for example, like this: https://emailengine.app/webhooks#messageNew

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

#626

Post by postscapes1 »

tetris11 wrote: post #280

A tree cutting tool. Take photos of the tree from 6 different angles, feed into a 3D model generator, erode the model and generate a 3D graph representation of the tree. The tool suggests which cuts to make and where, given a restricted fall path (e.g. constrained by a neighbors yard on one side). I create the fallen branches in their final state along the fall plane, and create individual correction vectors mapping…

This is great idea - I have a huge tree in front yard that will either cost be $5-10k to come down or was going to rent lift and do it myself - A few particular branches scare me though in terms of how they will come down... Bonus points for where to tie things off.

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

#627

Post by wayneshng »

I’m building an accounting automation tool that captures and extracts information received from your billing inboxes and send them to your accounting system. I had this idea after freelancing and running a small software business in Estonia for 4 years. Let me know if you want to become an early adopter!

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

#628

Post by jmcphers »

Positron, a data science IDE. Has roots in RStudio but it's built on VS Code and has robust support for both Python and R workflows. If you use VS Code and install a bunch of extensions to try to make it a competent R/Python data environment, you'll probably love Positron.

https://positron.posit.co/

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

#629

Post by Intralexical »

ddahlen wrote: post #522

I am about to begin a PhD in astronomy. Until last month I was working at Caltech for 3 years on code which calculates orbits of asteroids to high precision. This code is being used on several NASA telescopes now to predict when they will image known asteroids (NEO Surveyor, SphereX, maybe Roman eventually). I was allowed to open source it and I am planning on making it the basis of my PhD research: https://github.co…

I like the daredevil asteroids going for the close dive of the star emoji sun :)

Would it be appropriate to communicate on the README which telescopes this is used for? You see these very niche, very professional-looking repositories on GitHub now and then, and it's never clear how much credibility they have and whether they come from a hobbyist, student, experiment, or are in operational use.

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