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

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

#741

Post by coyotespike »

What a lot of amazing projects!

I'm working on a defense drone.

I built a garage workshop with a Shapeoko 5 Pro, X1C, soldering station, and learned CAD (ok just fusion). I have a lil drone in the air and I'm adding OpenHD for vtx, Rpi for on-edge compute (Jetson would be better but is expensive).

Haven't figured out FHSS or GNSS-denied nav yet (tbh I feel like fhss is gonna be harder). And SITL in a good sim remains to be conquered (ros on osx is a terrible experience). I'm also designing a battery pack that's modular, quick-swap, smart/telemetry.

I've shifted a lot of focus to networking (attending SOFweek in tampa) for the normal fundraising/team-building/customer discovery.

I'm also basically broke due to bootstrapping so I'm about to partner on some b2b ai saas consulting with a friend, today I got Suna up and running, pretty cool.

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

#742

Post by thebytefairy »

jeffhuys wrote: post #543
xarici_ishler wrote: post #8

The first ever SQL debugger – runs & visualizes your query step-by-step, every clause, condition, expression, incl. GROUP BY, aggregates / windows, DISTINCT (ON), subqueries (even correlated ones!), CTEs, you name it. You can search for full or partial rows and see the whole query lineage – which intermediate rows from which CTEs/subqueries contributed to the result you're searching for. Entirely offline & no usage o…

This would be incredible to understand why some queries execute slow; most of the time it's one of the steps in between that takes 99% of the execution time at our company. Do you record the time each step takes?

Can you not use EXPLAIN ANALYZE to identify steps that had the highest compute time? I think most databases have some form of this.

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

#743

Post by beatthatflight »

https://www.nativeplants.nz/

Basically a test of putting guard rails around format and content of a website and seeing how much I could automatically generate on a topic of interest to myself.

Biggest benefit I've seen with cursor is to write tests for everything. Far too mcuh content hallucination, or made up links at first, but once you put in some test guardrails you can minimise this.

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

#744

Post by rogeliodh »

tonyonodi wrote: post #530

I launched my web-based notepad calculator, https://numpad.io/ , a few years ago. Right now I'm working on a version 2 that has user accounts, multiple documents, markdown support, and document exports. Everything is local-first and it uses CRDTs to sync documents. It looks like this: https://i.imgur.com/Plk1DQ4.png the calculator is mostly the same for now, with a few improvements. It's unstable right now, so I don'…

I would love a pad where i could dump any text with numbers and it will sum/avg all of them

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

#745

Post by cacheorbit »

tetris11 wrote: post #280

A tree cutting tool. Take photos of the tree from 6 different angles, feed into a 3D model generator, erode the model and generate a 3D graph representation of the tree. The tool suggests which cuts to make and where, given a restricted fall path (e.g. constrained by a neighbors yard on one side). I create the fallen branches in their final state along the fall plane, and create individual correction vectors mapping…

Testing this is real pain in the ass, you gotta cut real tree to see if it works in various situations :(

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

#747

Post by lie07 »

xarici_ishler wrote: post #8

The first ever SQL debugger – runs & visualizes your query step-by-step, every clause, condition, expression, incl. GROUP BY, aggregates / windows, DISTINCT (ON), subqueries (even correlated ones!), CTEs, you name it. You can search for full or partial rows and see the whole query lineage – which intermediate rows from which CTEs/subqueries contributed to the result you're searching for. Entirely offline & no usage o…

Following...

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

#748

Post by geekplux »

9dev wrote: post #402

https://github.com/colibri-hq/colibri/ Colibri—a self-hostable web application to manage your (and your family's) ebook library, intended as a companion to Calibre. I want it to be a friendly, simple, capable, opinionated app to review your books, add metadata to them, get them onto your reader, share them with family and (few) friends, create a public shelf for bragging, connect with Goodreads etc., and exchange com…

Looks really cool, gave a star!

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

#749

Post by sci_prog »

I am building a service to make accessing AI as easy as sending email called ThreadWise

https://threadwise.app

You can email prompts directly to your ThreadWise address and get instant AI-powered responses, essentially an always available co-worker. Another great feature is the ability to schedule recurring tasks and since the AI has web access, you can get things like:

Daily mortgage rates or airfare price monitoring

Weather and news summaries

Sport scores, jokes, quote of the day

Pull data from public APIs (and more)

So you can essentially use it as a personal newsletter, crafted to your taste.

The free tier will let you test this out for free! I am looking for some feedback/criticism, testing, and additional ideas and I am open for collaboration if you have experience with sales. Also open to hearing which scheduled tasks people would find most useful.

Why I built it: I noticed a trend online, as well as with family/friends, that people would like to have a quick access to AI in instances where they couldn't always install apps or use browser-based tools (such as in remote/low bandwidth environments). This is when it him me, email clients already have all the features needed to interact with an AI (text + attachments) and I quickly got to work.

Some of the advantages are also that since there are no new apps, or browser tabs needed, the tool is ideal for companies who don't have the bandwidth to setup full fledged AI solutions on their own. The companies can choose either between public LLMs (e.g. OpenAI) or host everything on-premise with locally run models, so no data ever leaves the premises.

Eager to hear what you all think!

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

#750

Post by teleforce »

9dev wrote: post #402

https://github.com/colibri-hq/colibri/ Colibri—a self-hostable web application to manage your (and your family's) ebook library, intended as a companion to Calibre. I want it to be a friendly, simple, capable, opinionated app to review your books, add metadata to them, get them onto your reader, share them with family and (few) friends, create a public shelf for bragging, connect with Goodreads etc., and exchange com…

Great stuff, has been meaning to create an online library of my burgeoning ebooks collections for quite som time now, this is exactly what the doctors ordered and it's based on Postgres.

Just wondering about the encrypted collection of ebooks from Kindle for example. Are these ebooks supported and does it only supports metadata, what about the content search for these ebooks?

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