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

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311–320 of 1001 posts

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

#311
I'm building a website for watching TV news channels from about the world.

https://worldnews24.tv/

With the recent flurry of historic events unfolding, I want to see it from different perspectives (e.g. U.S., Europe, Russia, China, pro-Palestine vs Pro-Israel), therefore I included channels from all these areas, even channels that may be considered propaganda. So keep a critical eye when watching them.

And it's a way for me to try out Vidstack and SvelteKit. Feels like the routing can be improved though.

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

#312

I've been building mentions.us[1] - it sends you alerts when your keywords are mentioned on Hacker News, Reddit, Bluesky, LinkedIn and a few other places. For anyone who uses F5Bot, it's similar but with some extra data sources and a Slack integration. It's been a fun project. Dealing with the scale of Reddit (~300 posts/second) creates some interesting technical challenges. It's also let me polish up my frontend dev…

This seems very useful. Why not make it paid ? Do you think your customers won’t buy ? Have you tried ? What would your customers need to make them want to pay for it ?

I think most of the people who sign up for email alerts would never pay. Lots of them are indie hackers or folks with a side project - I've been there, and know how price sensitive those communities are. I'd rather they use the service for free than not at all - I get valuable feedback from that, a marketing boost if they tell others about it, and the validation of having built something other people use.

I do have a paid plan for people who want Slack notifications, and I think those folks ought to be happy to pay. My hope is that I'll eventually get a few paid signups and that those will cover the costs of the service (which are minimal).

I know I lose a bit of revenue with the above approach, but it's a tradeoff I'm happy to make.

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

#313
I've got a couple different things I've been hacking on on and off over the last few months.

The one that's furthest along is a database and (currently extremely crude) webapp for asking interesting data type questions about Lotus setlists. I built a little scraper for Nugs and have all their setlists, I just need to take it further and get some of the queries I want implemented and put some kind of halfway decent interface in front.

I also built a little app that uses your Claude API key to generate "generative art," so you send in a prompt and it sends back some visualization code and renders it. It's fun to mess with but I haven't seen anything come out that's wowed me yet.

Got some other little hackeries going too, a lot of my recent hacking time has gone towards getting the -arr apps and their whole little ecosystem set up on my home server. I got a little N100 machine back in December and have been having tons of fun hosting little docker gewgaws.

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

#314
post #250

Https://AppGoblin.info Free online database of all apps and their third party trackers. I made an Android app that lists the trackers on your phone. You can checkout that app by going to https://AppGoblin.info/about and clicking the link there. It is a test url for an open source ad tracking software. (ie track where an install came from, in this case the about page of the site). Feel free to reach out if you're inte…

Just a friendly ping that your first link is throwing a 502, could be a gentle hug of death? Will check back later, it sounds very intriguing to me!

Thanks! I think it was, though the hug was gentle, haha.

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

#315

I'm working on a new Event Sourcing database that elevates the WAL into a first class application concept like a message queue. So instead of standing up a postgresql instance and a kafka instance and a bunch of custom event sourcing plumbing, you stand up this database and publish all your application events as messages. For the database part you just define the mappings from event to table row and you get read mode…

I have done similar for a few customers. I have found that useful pattern is to have both raw queues (incoming data) and clean queue (outgoing data). Outgoing data in single queue only (so all changes are ordered, so we avoid eventual consistency) that has well-defined data model (custom DSL for defining it) and tables/REST api that corresponds 1-to-1 to the data model. Then we need mappings from raw queues to the clean queue.

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

#317
A JVM written in go. [0] We're committed to a high-quality implementation that works reliably--so our test code is > 2.x the size of our production code. We can already run lots of classes, but the finished product won't be ready for alpha testing until, we hope!, end of this year.

[0] jacobin.org

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

#318
post #206

Earlier quoted context omitted.

Awesome. Would suggest considering a built-in URL shortener.

Not too short or it's too easy to guess. The app might be stateless right now (I haven't checked); if it is, adding a URL shortener will break that.

How about zipping the state string or, even better, putting it into a KV storage thus exchanging it for a 10-char string.

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

#319
Me and a friend of mine are designing a HAB (high altitude balloon) payload meant to go on Hack Club's Apex: https://apex.hackclub.com. It's designed to measure how altitude, temperature, and much more affect photosynthesis, and in turn, chlorophyll fluorescence in algae. We learned a while back that when you shine blue light on chlorophyll, it fluoresces red, and it's really quite a cool phenomena. We're designing custom PCBs for powering and processing data, and even. It'll all go to a Raspberry Pi Zero 2 W which will beam data back to earth over 915Mhz LoRa when it's 100k feet in the sky.

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

#320

We're increasing the brain's restorative function during sleep. Over the last 4.5 years, we've been developing slow-wave enhancement technology which increases the effectiveness of deep sleep. We've developed the full stack, our own hardware, soft conductive dry (no paste or gel) electrodes, comfortable EEG headband, embedded sleep stage classification and stimulation models, the list goes on and on. We're currently…

Good use of tech. Hardest thing will be corrosion on the fabric electrodes. Muse S has much to teach if you haven't looked at them yet.
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