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Posted by david927 1 day ago

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

What are you working on? Any new ideas that you're thinking about?
276 points | 1015 commentspage 19
wan23 13 hours ago|
https://hobbybot.net

I'm trying to see how far I can get using AI to help me track pre-owned items for sale, starting with watches. I started with an OpenClaw agent that was looking for specific things I wanted to buy, and then I figured might as well make a whole site for it so I can share with others.

kodablah 20 hours ago||
Duralade - a programming language for durable execution (but has many neat aspects)

Most of the work as of today is in a branch, can see the language spec at https://github.com/cretz/duralade/blob/initial-runtime/docs/..., and some samples at https://github.com/cretz/duralade/tree/initial-runtime/sampl....

May not amount to anything, but the ideas/concepts of this durable language are quite nice.

jedberg 19 hours ago|
I'm curious what advantages this has over adding durability to an existing language, like DBOS does:

https://github.com/dbos-inc/dbos-demo-apps/blob/main/python/...

kodablah 19 hours ago||
Modern languages are not safe enough nor are they very amenable to versioning, serialization, resumption, etc. It makes sense for modern durable execution engines to meet developers where they are (I wrote multiple of the SDKs at Temporal, including the Python one, this is just a fun toy side project), but a purpose-built language that has serialization, patching, wait conditions, kwargs everywhere, externalizing side effects, etc, etc, etc is a big win vs something like Python.

Admittedly the lang spec doesn't do a great job at the justification side, but the engine spec adjacent to it at https://github.com/cretz/duralade/blob/initial-runtime/docs/... that has sections showing CLI/API commands can help make it clearer where this runtime is unique.

jedberg 18 hours ago||
Fascinating, thanks for the info!
BohdanPetryshyn 1 day ago||
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.

abound 22 hours ago||
I'm working on a simple, single person, self-hostable scheduling app [1] (think Calendly or Cal.com) to replace my self-hosted Cal.com instance, as it's way overkill for my needs and annoying to maintain.

I'm also using this as an experiment to see how to use AI tools to build a maintainable project of medium complexity. Too big to do in "one shot", but doable if decomposed into a few dozen tasks.

It's going well! I think I only started Saturday morning and put in maybe 4-5 hours on it, and it's in pretty decent shape. Not ready for prime time yet, but only a few hours away from replacing Cal.com for my own use. The slowest part is that I'm manually reviewing the code, but that's part of the deal for this experiment.

[1] https://git.sr.ht/~bsprague/schedyou

soohamr 1 day ago||
I inherited a stake in a pyridine derivatives chemical plant - while I do not know much about chemical feedstocks and the chemical supply chain, I am trying to help the current partner optimize their yields and reduce losses across multiple stages of reactions across the feedstock and reagents. It is quite similar to hardware design and electrical engineering than I thought.

I have also taken an interest in learning distributed paradigms like MPI and am using it on my own cluster of rPis

abound 22 hours ago||
I already posted in this thread, but then I remembered a few months ago I had posted about my ISP + web host project. [1]

Since then, I configured all the hardware (switches, router, server, bastion host, etc), put it in a real colo, and am doing BGP with one upstream (with a second upstream and some peers on the way). This means I'm officially part of the internet! E.g. https://bgp.tools/as/55078

I'm just working on some BGP and network hardening stuff, then I'll start putting real live services on the server. And in parallel, I'm working on getting the link from my home to the colo active, so I can be my own home internet provider.

[1] https://news.ycombinator.com/item?id=45870010

Improx 22 hours ago|
How did you receive your ipv4 /24 subnet?
abound 22 hours ago||
My /24 came from ARIN's NRPM 4.10 block [1]. Basically, you can get a /24 if you'll use it to help IPv6 adoption, which is what I'm doing: my web hosting service will offer shared IPv4 and dedicated IPv6 (like Fly.io does), and same for the ISP - CGNAT for the IPv4, dedicated IPv6 subnets.

[1] https://www.arin.net/participate/policy/nrpm/#4-10-dedicated...

francink 16 hours ago||
I am working on https://baolib.org.

Applications on the public cloud raise strong concerns about data protection. As an architect, I spend a meaningful part of my time ensuring the security of customers’ data in the cloud.

Bao introduces an innovative approach where data remains on local devices while the cloud provides encrypted storage for synchronization and peer exchange. Because cloud providers cannot access the data, the need for due diligence is reduced.

Any feedback is welcome.

bionsystem 16 hours ago|
Any connection with bao or openbao, the fork of hashicorp vault ? I fail to see any reference on the site
tompccs 21 hours ago||
I'm building this: https://teeming.ai/jobs. It aggregates jobs in AI startups enriched with investor-grade info. Can be navigated with a chat agent, filters, and has automatic CV/Linkedin matching.
meandave 23 hours ago||
Crew Chief (https://crewchief.cc) — a Vehicle diagnostic and management tool. Plug in your OBD2 codes (or just describe symptoms) and get a structured diagnosis in under 30 seconds: ranked probable causes, DIY vs. shop cost estimates, severity rating, and matched parts/repair videos.

I have too many project cars and bikes, I wanted one place to store vin numbers for searching parts, and then just kept adding useful features.

Supports 16 vehicle types (cars, trucks, motorcycles, boats, tractors, ATVs, RVs, etc.), not just cars. Also includes maintenance tracking, a browser extension that auto-fills your vehicle info on parts sites like RockAuto and AutoZone, a community-vouched trusted shops map, and a vehicle selling wizard with state-specific bill of sale generation.

Free tier gives you 1 vehicle with a full diagnostic.

ycombinatornu 1 day ago|
GetSize (https://www.getsize.shoes). We’re collecting the official sizing data of the world's shoes in one place.

Today, if you search for "what size should I get in Nike Air Max 90" you'll find size charts. We have it, and for 200+ brands across 70+ retailers. When users tell us which shoes they own and what size fits them we’re slowly building crowdsourced fit recommendations which are personal and more accurate compared to size charts.

We're two coders who've built an almost fully autonomous platform. AI agents build, debug and deploy crawlers on their own. We went from 4 crawlers to 280+ in about a month, and the whole thing runs on a home server. When new shoes are discovered, the platform publishes new pages with relevant info automatically. Agents get access to platform metrics and SEO data via custom MCPs to identify the right opportunities on their own. Currently at about 3000 MAU and about 100 size recommendations/day.

Example: https://www.getsize.shoes/en/shoes/nike-air-jordan-1-low-se-...

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