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

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641–650 of 1001 posts

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

#641
Building a personal internet archive and knowledge management stack. It's in a rough state but I'm using it every day.

Cham (https://github.com/jfim/cham) is an archive for internet content, you give it an URL and it'll archive it for you, extract the text with readability if it's an article, or extract the audio track then transcribe it. Content is automatically summarized and tagged, and you can start a conversation with a LLM about the article. It supports feeds too so you can subscribe to blogs and keep the articles in case the blog goes away. I still need to add search, improve the CLI, add all the missing features, and do a lot of improvements all over the place.

To improve reliability, I made passe-partout which is basically a Chrome browser with a rest API (https://github.com/jfim/passe-partout) and veilleur (https://github.com/jfim/veilleur) which turns any blog listing into a RSS feed. So this way I can take blogs that are rendered using JavaScript, don't have a RSS feed and load the articles directly into Cham.

Also built a modular MCP server with OAuth2 dynamic registration so that I can have my own MCP server that works with the web, desktop, and cli versions of Claude/Claude code. Currently have modules for editing files so that I can edit/search my Obsidian vault from Claude, fetching pages through passe-partout (since some pages block LLMs from reading them), and proxying MCP servers so that servers that only support bearer token auth can still work with web Claude.

Also, a gnome terminal emulator UI with some unique features like split browser/terminal tabs. https://github.com/jfim/jfterm

Mostly an excuse to see how far I can push LLM code generation to write tons of software that I've always wanted but never had the bandwidth to tackle, and learning to deal with the sometimes questionable code quality that comes from it.

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

#642
I'm building yet another terminal [1][2] for macOS and Linux. I've been unsatisfied with the window management of iterm2 and other terminals, my one acts a bit more like Chrome with projects at the top level.

It also allows remote control. I don't like AI harnesses (Claude / OpenAI) having remote control inside, it feels like it should be at the terminal level, not the cli.

It also allows commands at the terminal level. So if you use multiple ai cli's you don't only need to write the command once, then use cmd+l to inject into any cli.

I've put macros in too, that again can automate doing the same thing in a terminal.

Anyway I'm sure this will just end up another terminal in a sea of already existing ones.

1. https://github.com/markwylde/terminay

2. https://terminay.com

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

#643

European night trains search engine. The plan is not to provide the functionality where user searches for a specific route on a specific date and the engine returns prices. The plan is to provide "tips for trips", e.g. I provide a starting city and it will recommend me interesting trip ideas any time in the future. There are many flight apps that provide this functionality, but no train app. Currently I'm building sc…

I love this idea, it’s always surprisingly difficult to find what routes are available, what cabins they have, how much tickets are etc.

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

#644
I am working on DAGraph (https://dagraph.com)

DAGraph is a local-first reactive DAG for analytical SQL (OLAP), running entirely in the browser (there is also a native version in the works).

Some tech details: written in Rust, targeting WASM (and native). The SQL engine is Apache DataFusion[1]. The UI uses Egui[2]. Workspace data is persisted in browser using OPFS[3] via OpenDAL[4]. The graph is functional and handles dependencies for you (via parsing the SQL).

Building this to be accessible for beginners while remaining powerful for advanced users. Still very early, lots more features to add, but now usable.

Hope you find it interesting!

[1] https://datafusion.apache.org

[2] https://www.egui.rs

[3] https://developer.mozilla.org/en-US/docs/Web/API/File_System...

[4] https://opendal.apache.org

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

#648
I am working on Liel (https://hy-token.github.io/liel/), a tool that can compare and integrate LLM memory as single file.

Instead of saving LLM memory in Markdown, I want to manage it using a graph structure to easily record the relationships between tasks and decisions, and persist when, why, and how they changed.

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

#649
Building a GNSS/RTK-based lawnmower.

The existing ones were quite expensive, especially when I started out. A friend had the idea to get a cheap/non-functioning lawnmower second hand, and tear out the circuit board. We're in the process of coding up a new ROS2 based stack that will roam the lawn on GPS with RTK in the charging station. My friend does most of the electronics stuff, and I focus on the software.

I'm at the point where I will start testing a simple bounding box soon and just have it drive around until it "hits the edge" and then randomly pick a new direction.

It's fun so see the software I build "in real life" instead of as a web-site, as is the case for my my daily job.

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

#650
I've been cataloging my collection of American vintage ads (https://adretro.com). The collection has expanded considerably in the last year. I'm working on a front end search portal for users to use, to deeply search all aspects of the collection. Built on MySQL and Lucee. Meta data is extracted with OpenAI image, stored in MySQL FTS. I'll probably add vector search after I get it live.
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