Ask HN: What Are You Working On? (July 2026) • Hacker News Board

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

#561

Post by ricohageman » Mon, Jul 13, 2026, 1:55 PM UTC

My city caps how many shared scooters and bikes each operator may put on the street, and how long a vehicle may sit unused. In 2024, an activist group did a one-off analysis on the problem (they found ~1.5x more scooters than permitted) based on an open GBFS data-feed that shows where scooters and bikes currently are. The municipality confirmed the data but called the situation "not undesirable."

The site, https://deelmobiliteitdelft.nl, logs the availability of every shared vehicle inside the city boundary. This allows me to do interesting analysis. For example, one operator has been above its vehicle limit 80% of the time. Another has a third of its fleet standing untouched for over three days.

It's the same idea as my previous project (http://parkeergaragesdelft.nl) where we do have live data but nobody keeps a record causing the public debate to run on anecdotes.

Site's in Dutch, charts should speak for themselves.

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

#562

Post by realrocker » Mon, Jul 13, 2026, 1:57 PM UTC

I am working on speeding up the review-refine loop of LLM generated artefacts between me and the LLM. i run my coding agent (claude code) in auto / full-permission mode, so it doesn’t stop for accept/reject — by the time it’s done i’ve got a pile of generated code, docs, sometimes ui to review. and the slow part for me is to refine it before push it to remote. i would copy-paste snippets to point at what i wanted changed, screenshot the ui, describe where the problem was in prose, one message at a time. its cumbersome.

so i built prereview to speed up that review-fix loop. you run it in your repo (or point it at a file, a dir, or a running dev server), click what’s wrong: a diff line, a markdown/html block, a region of an image, a box on a live site — and leave a comment. the comments go to a csv, your agent reads it and fixes things and tells you what it did via a comment or even posts suggestions which you can accept or reject. it ships with a claude code skill, but the handoff to llm is just an open csv protocol, so any llm cli can drive it. stuff that might interest people here: single static go binary, fully offline; it reviews docs/images/live ui as well as code; comments re-anchor when the file changes under them. it’s mit and still early but I use it everyday. Its here: https://github.com/livetemplate/prereview

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

#563

Post by adobrawy » Mon, Jul 13, 2026, 1:58 PM UTC

[dead]

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

#564

Post by donalbrecht » Mon, Jul 13, 2026, 1:59 PM UTC

I’m working on SprigEdit. A wysiwyg markdown editor that focuses on a beautiful and pleasant writing experience. Https://sprigedit.com

Perhaps the coolest feature is it is fully native, and yet still runs on web, windows, macOS, iOS, and android due to a shared core and platform native ui layer.

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

#565

Post by baron3dl » Mon, Jul 13, 2026, 2:01 PM UTC

I'm building https://mallcop.app, an AI, open-source, cybersecurity monitoring, investigation, and escalation solution. It's rooted in four principles:

1. Analyze data where it resides

2. Connectors and detectors are not a moat

3. MIT license every line of code

4. Fully exploit AI for investigation, maintenance, and self-improvement

MallCop runs on Donuts (e.g. tokens), which I'll happily resell, or you can BYOK and use your inference API of choice.

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

#566

Post by alexgandy » Mon, Jul 13, 2026, 2:02 PM UTC

I'm working on https://gaffer.sh in my spare-time. It's been a fun way to learn how to (semi?) effectively work with LLMs and AI coding tools.

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

#567

Post by fredwu » Mon, Jul 13, 2026, 2:02 PM UTC

Have been working on three micro-saas, all built in Elixir/Phoenix:

https://feedbun.com - a browser extension that decodes food labels and recipes on any website for healthy eating, with science-backed research summaries and recommendations.

https://rizz.farm - a lead gen tool for Reddit that focuses on helping instead of selling, to build long-lasting organic traffic.

https://persumi.com - a blogging platform that turns articles into audio, and to showcase your different interests or "personas".

Took a long break earlier this year to recharge, but now I'm back at it again, mostly working on Feedbun, about to launch it as an early alpha. :)

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

#568

Post by franze » Mon, Jul 13, 2026, 2:02 PM UTC

an ai first virtual computer as an mac app with mcp support

think ai is yolo sudo admin within the sandboxed linux

and internally/external you can control the whole computer via mcp, too

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

#569

Post by ac2u » Mon, Jul 13, 2026, 2:03 PM UTC

A CLI/Terminal file deduper.

Moving a lot of files from old laptop to new, lots of duplicate videos in scattered directories with different file names.

Point the CLI tool at a directory and up pops a ncurses application that scans from the directory you specify (recursively), hashes all the files to get groups of dupes, and then ranks the dupes into a table (that looks like top) so you can work your way through the dupes and decide which to keep without your hands leaving the keyboard.

It automatically ignores typical developer directories like node_modules so you're not tortured with noise in the result set.

Hit 'p' and a preview pops up so you can double check they are indeed dupes, if it's a media file the preview window autoplays the dupe videos in tiles with zero volume.

Supports a dry run mode, and switches to cover behaviour like sending dupes to trash rather than hard deletion.

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

#570

Post by rf-monitor » Mon, Jul 13, 2026, 2:07 PM UTC

I'm building an RF monitoring system.

It can tell you things like:

- The car that parked nearby last night coincided with "Chad's Galaxy Buds" with MAC address aa:bb:cc:dd:ee:ff. The buds also drove by briefly the previous night.

- Alert on sudden cross-specturm interference (e.g. burglars using a cheap jammer to knock out WiFi cameras).

- Alert on known device contact loss (powered off / left premises).

- Review device movement across a campus/neighborhood (using multiple RF pods).

I have a working PoC. It can run on a low-power computer (e.g. RPi) supporting multiple RF sensors (BT/BLE/WiFi). Has a web UI. Can publish events to an external security system. Currently working on an LLM interface to make it easy for a non-technical operator to set policies and ask questions.

Could be sold as an appliance system or a license for a DIY build.

Angel investors are welcome to contact rf-monitor@tuta.com