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Posted by david927 1 day ago

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

What are you working on? Any new ideas that you're thinking about?
270 points | 1015 commentspage 30
onlyrealcuzzo 1 day ago|
I'm building a memory safe programming language that's like Rust, with a declarative concurrency model, which makes it much safer, simpler, and easier and nearly as fast & efficient

https://github.com/cuzzo/clear

The goal is to make Rust code nearly as easy to write as Ruby, but it almost always does the absolute best strategy.

You can write somewhat slow untyped code, and the internal tooling can guide you to adding all the types and optimizations and concurrency strategies that will make your code as fast as possible.

nateb2022 1 day ago|
Sounds a lot like Crystal, which is also similar to Ruby and features a green fiber runtime: https://crystal-lang.org/#concurrency
onlyrealcuzzo 1 day ago||
Yes, in a lot of ways.

Crystal wanted to be Ruby/Go - essentially a faster Ruby, that sort of scales, too.

CLEAR aims to be a substantially safer Rust - no Garbage Collector - no manual synchronization hazards, and safer than even Pony - but also with far less complexity than Rust.

Crystal's fibers did not do well multi-threaded until somewhat recently, and AFAIK, it's still very far behind Rust/Tokio and Go in a lot of important benchmarks. Crucially, afaik, p99 in adversarial workloads can still blowup easily.

Like Tokio, CLEAR lowers fibers into Finite State Machines instead of stacks, which perform better than stacks in wait heavy (i.e. Go's primary market - web servers) and idle-heavy scenarios (i.e. chat servers, telecom, etc), and it has Go's work stealing algorithm + forced yielding to ensure p99 doesn't blow out.

Also, CLEAR transpiles to Zig, so it has native access to the entire C library. Crystal has a bootstrapping / ecosystem problem that's unlikely to ever be solved.

CLEAR doesn't need a single person to contribute to it to have access to basically everything.

Also, transpiling to Zig means you get Zig's other killer feature - you can compile to any target (i.e. Linux) from any target (i.e. MacOS).

bmalicoat 1 day ago||
Learning how to make custom PCBs and 3d printing. I really like Radio Taiso (daily calisthenics synced with music), so I made a dedicated speaker (https://www.taisospkr.com). It was fun to add new tools to my tool belt (ESP32, remote firmware updates, embedded website, streamlined wifi setup). Already have a new project based on a very similar architecture that I'm super excited about! Making PCBs and hardware has never been easier as a solo developer.
edumucelli 18 hours ago||
Fast, customizable, and extensible dock application -- fully written in Python, with built-in applets and full Linux desktop integration.

https://docking.cc

asciimoo 1 day ago||
I'll continue to work on https://github.com/asciimoo/hister as much as I can. I plan to add new extractors and optimize the indexer storage usage by moving out HTML/favicon content from the index and storing them in an efficient compressed way.

Hister is a free general purpose web search engine providing automatic full-text indexing for visited websites.

joladev 1 day ago||
I’ve been building an uptime monitor service for a while now, something that is genuinely reliable and only alerts you when something is actually going on. Also comes with very pretty status pages!

Free tier is enough for most users, paid tier just exists to gate the stuff that is expensive to run like SMS alerts.

Check it out at [Larm](https://larm.dev) and try out the [response time checker too](https://larm.dev/tools/response-time) to try out the Larm probe infrastructure.

_fizz_buzz_ 1 day ago||
I have been experimenting on using AI for hardware development. I showed some experiments on HN a couple of weeks ago (https://news.ycombinator.com/item?id=47801255). I am now trying to make my approach a little bit more comprehensive and structured, instead of several disjoint MCP servers, a single platform that connects lab instruments to AI assistants: https://teasel.tools/

As a demo, I repaired an old Philips PM5190 function generator (about 40 years old) and connected it to Claude Code. Lots of fun. Going to post a follow up video the next couple of days.

tompccs 1 day ago||
I'm working on heytavi.com

I was interested in building a product for which 1. the agent is the whole product, not just a component of it; and 2. solves a specific problem out of the box.

Tavi is a deep people search agent that lives in Slack. We used it to find our founding engineer and our first customers are a mix startups, recruiters and VCs.

7237139812 1 day ago||
I've been working on a web based tool to review markdown and HTML collaboratively with your agents. Wrote about it on my blog. No aspirations to make it more widely available just yet. I'm mostly focusing on getting it right for my day-to-day (making it feel light and easy).

https://shivan.dev/writing/post/markdown-wrangling

Kuyawa 1 day ago|
Just finished an app that allows you to track every rep, set, and weight at the gym. Decaboy — the ultimate gym companion for serious bodybuilders

https://decaboy.fit

Built in 15 minutes with mecha-ai my own code assistant using DeepSeek

https://github.com/kuyawa/mecha-ai

Right now working on a betting app, DeepSeek is fairy dust and Mecha is my magic wand, I am unstoppable!

* If you need an app I can build anything and I mean anything in one day for peanuts, just let me know

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