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Ask HN: What Are You Working On? (March 2026)

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Re: Ask HN: What Are You Working On? (March 2026)

#141

Post by wisemang »

efromvt wrote: post #122

A visual explorer for the trees of San Francisco. https://greenmtnboy.github.io/sf_tree_reporting/#/ For all the places it's bad at, AI has been fantastic for making targeted data experiences a lot more accessible to build (see MotherDuck and dives, etc), as long as you can keep the actual data access grounded. Years of tableau/looker have atrophied my creativity a bit, trying to get back to having more fun.

Nice! I’ve been working on https://treeseek.ca which is a different use case from most of the other open data tree sites I’ve seen — I want to be instantly geolocated and shown the nearest trees to me. I do a lot of walking and am often mesmerized by a particular tree, and I wanted something to help me identify them as quickly as possible, with more confidence and speed than e.g. iNaturalist (which i do also use).

This is an app that’s been bouncing around in my head for over a decade but finally got it working well enough for my own purposes about a year and a half ago.

Re: Ask HN: What Are You Working On? (March 2026)

#142

Post by TheAceOfHearts »

I vibe coded a tiny MUD-style world sim where LLMs control each character. It's basically a little toy sandbox where LLMs can play around. There's no real goal to this, I just thought that it would be fun, like a more advanced tamagochi.

One of the issues I encountered initially was that the LLMs were repeating a small set of actions and never trying some of the more experimental actions. With a bit of prompt tweaking I was able to get them to branch out a bit, but it still feels like there's a lot of room for improvement on that front. I still haven't figured out how to instill a creative spark for exploration through my prompting skills.

It has been quite exciting to see how quickly a few simple rules can lead to emergent storytelling. One of the actions I added was the ability for the agents to pray to the creator of their world (i.e. me) along with the ability for me to respond in a separate cycle. The first prayer I received was from an agent that decided to wade into a river and kneel, just to offer a moment in stillness. Imagining it is still making me smile.

Unfortunately, I don't have access to enough compute to run a bigger experiment, but I think it would be really interesting to create lots of seed worlds / codebases which exist in a loop. With the twist being that after each cycle the agents can all suggest changes to their world. This would've previously been quite difficult, but I think it could be viable with current agentic programming capabilities. I wonder what a world with different LLM distributions would look like after a few iterations. What kind of worlds would Gemini, Claude, Grok, or ChatGPT create? And what if they're all put in the same world, which ones become the dominant force?

Re: Ask HN: What Are You Working On? (March 2026)

#143

Post by aguacaterojo »

Last week I wrote the spec for a couple of vanilla JS https://danielgormly.github.io/primavera-ui/dnd/ that I've handwritten in the past. I used the spec to vibecode them + a few follow-up correction prompts. Honestly the robot did a better job of implementation than I would have. Just can't compete with the speed.

Very early days but will keep updating them & adding more.

Re: Ask HN: What Are You Working On? (March 2026)

#145

Post by BohdanPetryshyn »

Five months into building product analytics for conversational AI. Started by targeting vibe coding tools like Lovable but realized most of them don't care about user experience yet. With monthly churn over 50%, they focus on acquisition, not retention.

Now shifting to established SaaS companies adding AI assistants to their existing products. Some of them literally have people reading chats full time, so they actually value the experience.

Building https://lenzy.ai - 2 paid customers, 2 pilots, looking for more and figuring out positioning.

Re: Ask HN: What Are You Working On? (March 2026)

#146

Post by atilimcetin »

After reading Sebastian Aaltonen's No Graphics API blog post [1], now I'm working on implementing the suggested API using Metal 4.

Also I gave that blog post to Claude Code and asked to implement the API and it made terrible terrible mistakes. Just saying.

[1] https://www.sebastianaaltonen.com/blog/no-graphics-api

Re: Ask HN: What Are You Working On? (March 2026)

#147

Post by kushalccc »

A semantic search engine for urban dictionary to be able to search for stupid phrases that the youth keeps redefining

Problems I'm having: - Getting enriched vectors because the definitions to some of the words are absolute garbage - Finding a good open source embedding model, currently using nomic-embed-text

Goal: Find me words originating from X city and it not giving me results that match X

Re: Ask HN: What Are You Working On? (March 2026)

#148

Post by davidchua »

Spent the last year expanding my homelab and now I have my own rack at my local DC with my own ASN and /23 prefix.

Its been pretty fun cosplaying as an network engineer, and now I'm building out an Anycast network for a few ideas that I'm working on.

Its nothing too revolutionary or new, but I'm proud that I've built them from ground up and all running on my own infrastructure.

- DNS Authoritative Hosting - https://thelittlehost.com/dns/ - Quietnet - A family-focused internet filter - https://quietnet.app

I'm also getting ready to launch https://relaye.io, which was my personal tool I built to support my devops consultancy.

Re: Ask HN: What Are You Working On? (March 2026)

#149

Post by tismyname »

It's nothing big. I wanted an offline natural language to cron/cron to natural language translator and I wanted to get some experience building MacOS apps. It's not vibe coded, but I did get good help from Claude since it's my first time building MacOS apps. It's free and no data is collected.

https://cronwise.github.io/

Re: Ask HN: What Are You Working On? (March 2026)

#150

Post by paulhebert »

I'm still having a lot of fun releasing daily puzzles for my game Tiled Words: https://tiledwords.com

It just won an award! It was awarded Players' Choice out of 700 daily web games at the Playlin awards: https://playlin.io/news/announcing-the-2025-playlin-awards-w...

Right now around 3,500 people play every day which kind of blows my mind!

It's free, web-based, and responsive. It was inspired by board games and crosswords.

I've been troubleshooting some iOS performance issues, working on user accounts, and getting ready to launch player-submitted puzzles. It's slow going though because I have limited free time and making the puzzles is time consuming!

Here's an article with more info about the award: https://cogconnected.com/2026/03/tiled-words-crowned-the-pla...

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