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Posted by david927 16 hours ago

Ask HN: What are you working on? (August 2026)

What are you working on? What have you been curious about lately?
237 points | 825 commentspage 8
andrevalleee 10 hours ago|
I was actually facing a huge friction problem when it came to closing clients—both at my agency and in a wholesale business I run with my family—because the whole quoting and payment process was really outdated. So, I built a software tool to eliminate that friction; it’s like a live Notion-style interface where the salesperson and client can update the quote and communicate via a public link. That same link allows for approval and payment—using cards or bank transfers, obviously via the Stripe API—and handles everything related to invoicing and sales. It ended up being really useful for my agency, too, allowing me to send clients more professional quotes with a detailed project breakdown so they can clearly see what the work entails and understand the pricing. Honestly, I’ve definitely noticed an improvement in sales.
ppnpm 3 hours ago||
I am building Segue: an infinite canvas and keyboard-first mind maps application for windows desktops. I am trying to keep it minimal and only necessary features like text node, sticky note, ink tool and images. Later I shall add more productive feature and less unnecessary tools and features.

It has completely local environment and has no servers. Your files saved as SQLite database files per board. This means you have nothing to set up. No account, no sign-in, no sync settings. Just open it and work. You can use git or Onedrive to sync your SQLite files.

The code is open-source on GitHub with MIT license. I am using claude to build it in C#, Skiasharp for canvas and WPF UI.

If you are interested to take a look, please check it here : https://github.com/ppnpm/segue

Thanks, Ankit

sbrother 15 hours ago||
I'm working on Trebella [0], a tool to help classical music students structure their practice sessions more effectively. I tried to build something similar ~10 years ago in the form of a more interactive music game, but felt like it wasn't actually that helpful for intermediate and advanced students. So this time I'm doing it in collaboration with actual music teachers and building a tool that actually helps me learn. I'd say 90% of my flute practice is done using it at this point, and I'm in the process of taking on the first arms length users in a closed beta. Please shoot me an email if you are interested in any way!

[0] https://trebel.la/

faangguyindia 2 hours ago||
MacroCodex app, which results in guaranteed weight loss or weight gain outcomes within 2-5 weeks. It's a completely ad-free, subscription-free product.

Don't believe? Read the reviews.

All you need to do is provide it your calorie intake and weight reading each day.

How does it work? Explained here: https://macrocodex.app/knowledge/rethink/adaptive-tdee/

We already have 16,000+ users.

gppk 2 hours ago|
How do you get your users? This seems like a great little "useful tool" type app, but i always wonder how they get tractions..
jjcm 14 hours ago||
A diffusion-based UI design tool I left Figma to build.

My core hypothesis is that LLMs are trained to write consistent code (good for a billing function), but they also express design through code, resulting in consistent design as well.

Diffusion models are just now good enough to do UI, and are trained on a much wider set of visual data, resulting in more unique outputs. LLMs are now good enough to convert images to code very effectively, so the end result is better even though you have to do a conversion.

Here's a page detailing the standard flow: https://diffui.ai/blog/show-hn

And here are a couple sample sites built with it:

https://html.non.io/tarot

https://html.non.io/neonRamen (note - not optimized for mobile)

And here are a couple files showing the designs (requires sign in):

https://diffui.ai/app/canvas/9e03f5c2-91c5-4f96-8f08-b8086e5...

https://diffui.ai/app/canvas/95934269-5dc8-4145-a33a-d3a4dc2...

Happy to answer any q's!

animeshjain 3 hours ago|
looking forward to trying this out!
andrewjk 7 hours ago||
Multi-language libs with implementations in TypeScript/C#/Swift/Zig so that they can be used directly in web or native apps:

- A Markdown parser/renderer (https://github.com/andrewjk/allmark). The TS version of this was hand written and the other versions are AI translations.

- A Git client (https://github.com/andrewjk/gitologist) and a diffs parser/renderer (https://github.com/andrewjk/differator). These were vibe coded in TS, checked and then AI translated.

I’ve used these libraries to build a native Mac Markdown notes app (https://staunchapps.com/stash) and a JS script launcher (https://staunchapps.com/launch).

nbbaier 7 hours ago|
Are the creator of the `.mdsv` format that's referenced in the stash manual? Never heard of it before. If you are, interested if there's a spec.
andrewjk 6 hours ago||
It's just a text file containing a single Markdown table. Making it a different extension seemed like the best way to force them to open in a different editor view inside Stash (while keeping them editable with any other text editor).
ahmedxuhri 2 hours ago||
Thread visualization web tool https://sudolaps.top/postroom/ > Show HN/Reddit/Youtube comments as 2d Auditorium (comments clustered into sections, summarized via ai) -> Free
lylo 3 hours ago||
I’m working on my indie blogging platform, Pagecord (https://pagecord.com). It started as a fun side project but is gaining decent traction right now - I’m convinced there’s a blogging renaissance about to happen! :)

I’ve been focused on decentralising it, offering ways for bloggers to write locally (markdown, Obsidian) while hosting remotely on the platform. I think it’s a great way of working. Most people still just use the editor though!

I’ve been focused on marketing and distribution, which is mainly about content. Hard in such a crowded space but it seems to be working.

It’s been such an interesting journey technically too, from using coding agents to dealing with the crazy deluge of bot traffic.

I run it all myself which isn’t so daunting in the AI age.

alphaBetaGamma 15 hours ago||
My wife and I are working on a math/science/CS-inspired jewelry business. We try to create pieces that stand on their own aesthetically but have a hidden meaning.

We currently have two styles: lambda calculus based pieces (we depict the lambda/Tromp diagram) where we have Y-Combinator earrings (well, strictly speaking they are one beta reduction away from Y-combinator. Aesthetic oblige) and a pendant depicting a lambda expression computing Graham's number. The other style is quantum computing circuits, based on quantum computing research my brother (a physics professor) is doing: a pendant that is actually a non-local controlled-NOT gate. I wrote a tiny DSL to describe the jewelry pieces, and an interpreter to produce CAD files. We then either 3D print them or have them produced by lost-wax.

We are 200% out of our comfort zone (and love it): I know nothing of front end dev, payments, or anything like that. The diamond district in New York is a neighborhood we normally actively avoid, but if you are forced to go there it is fascinating (people examining diamonds on the corner of the street, others in fur coats in summer straight out of a mafia movie...), and especial marketing. Jewelry is a completely saturated business (luckily we are not doing this to pay the rent); we think we have a unique angle, but we are still figuring out the target audience (if there is one), how to advertise, etc.

Any ideas on marketing are welcome.

Store: https://studio-galois.com/

spindown 9 hours ago||
This would be perfect for the Computer History Museum gift shop:

https://shop.computerhistory.org/

xkam 13 hours ago||
> Any ideas on marketing are welcome

Maybe contact CERN - they have a souvenirs shop https://visit.cern/shop

SleeperShip 16 hours ago|
https://www.play-when.com/daily

When? Is a timeline game I've been working on for a bit. It's a board game I love playing with my family and I wanted a slicker mobile version I could play with them.

properbrew 15 hours ago|
I didn't quite understand what you meant from your description, started playing it and love it! Educational too!
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