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

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261–270 of 1001 posts

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

#261

I built a reverse proxy similar to Cloudflare Tunnels that can be self-hosted: https://tunlr.dev This came about because of how awkward Cloudflare Tunnels is to use in a development environment.

I'd love something like this, however the pricing isn't clear. It looks like I have to pay for a $100/yr server license and self-host it?

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

#262

I'm building CAIL – an AI that makes and answers phone calls for you. You type what needs to be done – it calls, talks, waits on hold, asks questions, and sends you a summary. Kind of like a voice assistant, but for actual phone calls. Also built an AI voicemail agent – it can answer missed or declined calls, figure out what they wanted, book a meeting in your free calendar slot, or even mess with spammers if needed.…

That's cool! I wondered about this recently -- I'd be pretty annoyed if an AI called me. I would most likely hang up immediately, regardless of what was said. Am I in the minority here? Is that feedback you've gotten before?

I do however think people would be more tolerant of an AI answering a phone call they made, I'm bullish on that half of the equation.

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

#263
I’ve been thinking lots about the YouTube algorithm, how it’s based on engagement, not educational value, and how it’s such a huge missed opportunity for our kids.

So I’ve been building my own YouTube app, for my own kids. Better blocking of keywords (no more 1,000 MrBeast video recommendations). Better educational themes.

Email me if you’re interested in testing.

jim.jones1@gmail.com

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

#265
Lots of things! I'm in a gap year.

To start with, there's https://nuenki.app. It's a browser extension that selectively translates sentences into the language you're learning, so you're constantly immersing yourself in text at your knowledge level.

I've also been working with a friend on a device to help blind people without light perception. I'm quite new to electronics. It's pretty simple, conceptually - a coin-sized device on the forehead that takes in the light intensity in a ~15 degree cone, then translates it into high resolution haptic feedback to the forehead.

The idea being that it means people without light perception can gain a sixth sense through neuroplasticity, with helps them navigate the room and understand their surroundings. We're planning on open sourcing the files. My mum used to teach blind kids, and there's been quite a lot of interest!

As for Nuenki, I'm pretty bad at marketing, so I'm doing a final lot of work to see if I can make it work financially - seeing if an exceptionally generous affiliate program will do the trick - before putting it on maintenance mode, since I have a small group of users who really like it. I'm burning through my gap year fast, and really want to focus on the electronics project, tutoring, and practicing maths for my physics degree.

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

#266
I've been learning Russian off and on for 15 years and was having trouble keeping up in the group chat texting my Russian friends

Most language apps make you select whole words rather than type, so I made an app that focuses on text first

It's helped me find the letters on the keyboard much quicker and rattle off common responses

Check it out! Would love your feedback

https://apps.apple.com/us/app/texttutor/id6741771741

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

#267
For anyone interested in the tabletop Star Wars RPG by Fantasy Flight Games / Edge Studio - a friend and I have been working on some small typescript libraries starting with dice rolling and monte carlo simulations that we can eventually use with web apps.

Open source tools and art assets: https://github.com/swrpg-online

A quick repl.it one-shot UI using the monte carlo library: https://dice-pool-simulator-chrispan5.replit.app/

SWRPG Combat Simulator: https://swrpg-combat-sim.com/

Working on a frontend dice roller that utilizes the open source dice SVG files and rolling utility.

We could also stand to fill a slot in our online play group if you want to reach out! :)

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

#268
This week I got back into Zig. I wanted to build a Zig library from end to end to find out all the wrinkles in publishing it as a package. Ended up building a topological sorting library that does the followings:

- Build dependency graph from dependency pairs.

- Generate the topological sort from the graph.

- Ordered parallel task sets (i.e. subsets of nodes that can run in parallel, within the overall topological order).

- Cycle detection and reporting the cyclical nodes.

https://github.com/williamw520/toposort

It's feature complete, but I still have problem publishing it as a library. Kept getting "unable to find module 'toposort'" error when importing it in a separate project.

Edit: Alright, finally figured out why the module was not published. The default project creation template in Zig 15 uses createModule() in the generated build.zig, which creates a private module. Switched to use addModule() to create a public module and my library can be imported and used by other projects.

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

#270
I am working on a site that makes it easier for people to learn Vim. It started with me delving into containerization and Neovim plugins and then took on its own identity. It's called:

vimgolf.ai

Right now, only has two levels but I soon plan to add all the Vim motions and use reasoning models as bots that start off the level with you. Apparently, reasoning models like o3-high, Claude 3.7 thinking, and Gemini 2.5 pro are good at finding new ways to transform files using Vim. Kind of silly to have them do that, but I find it kind of cool.

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