Posted by david927 3/30/2025
Ask HN: What are you working on? (March 2025)
Well I just put it live couple of days ago, now I'm just starting to post my own locations.
Had this idea when I wanted to take my drone out but didn't know where to go. And as a plus I really wanted to learn more about working with maps and geolocation for an upcoming project, so this was a perfect way to learn it and make something useful.
Would love feedback—especially on CLI features you'd find useful!
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 interested in either project.
The app will use genai to extract the details of houses listed for sale and then update my custom database.
For example I can input a youtube url and it will fetch the transcript and use llm to generate Json response based on predefined schema.
I can review and shortlist the houses based on various custom parameters using the web interface.
The mvp is done in a proprietary tech stack, I just need to port it to open source tech stack with React and FastAPI
On the frontend I'm rather happy with Angular but backend-wise I was never really happy. So it was time to build it. Been developing it for more than a year now.
Input: The website of a company. Any company. Apple.com or Ycombinator.com if you want.
Output: The verified email of every Apple/YC employee we've managed to find. Works for linkedin profiles too — put a linkedin profile in, you get a verified email out.
It's currently cheap as fuck ($10/mo) because it's a hacky piece of software. It doesn't work every time, but it gets improved every 48 hours so it'll be really good soon.
We're also teaching people how to hack sales and advertising, stuff like how to get a 30% response rate with targeted cold email. Basically everyone who's bought a subscription gets a lesson once per week. I've got 10 years of experience teaching skills, so in my opinion it's cool.
Join the discord server here if you want to talk about that: https://discord.gg/2RNwH8ta4A
If you want proof that I can even write an email as good as that: https://imgur.com/a/z9gNgGH
- Repairing an Apple II+. So far I've converted it to run on 230V and picked up the A2DVI to connect to modern displays. Next working on cleaning up the floppy drives and repairing the one that doesn't work.
- Reverse engineering the Tandy Z-PDA. I want to be able to synchronize with modern desktop Linux applications, and also eventually write my own PEN/GEOS applications for the PDA.
Got inspired by Go by Example [1] while learning Go. Realised there's nothing for Ruby like that and decided to build.
Goal is to have simple urls for one-click navigation for each topic where the page covers a single topic briefly with examples, with relevant links and historic artifacts (for example, it links to the "Programming with Nothing" talk in procs/lamdba page [3]).
It's still a work in progress and I'm not rushing it.
The examples are all my own. It's easy to do with AI, but I'm not going that way. I'm explaining things based on my own 12+ years of ruby experience.
Like GoByExample, this is also desktop only, but mobile-friendly is on the roadmap. The CSS also will change to be someting like RailsGuides. Might also add a video for each topic explaining the code.
[1] - https://rubyexamples.com/ [2] - https://gobyexample.com/ [3] - https://rubyexamples.com/p_and_l
It's an addon that allows one to modify any web page behavior. You can write rules for things like redirecting reddit to old reddit or keeping youtube videos playing in the background.
It's like Tampermonkey/Greasemonkey/etc but it works on HTTP request level and can modify scripts/styles/markup before they are ever rendered making it considerably more powerful.
Currently it only works on Firefox (and Firefox Mobile) because it's the only browser that supports the necessary APIs. It's seen its first release already but the UI is a bit lacking :)
AMO: https://addons.mozilla.org/en-US/firefox/addon/web-defuser/
Sources: https://gitlab.com/gear54/web-defuser
Example rules: https://gitlab.com/gear54/web-defuser/-/snippets