Alternatives
Products that do what JUring – Java bindings for io_uring file I/O does
Hi HN! For the past few weeks, I've been working on bringing io_uring to Java. It started as an experiment, but slowly it became more than just that, and now trying to turn it into a proper library. After hearing talks about virtual threads and io_urings performance I wanted to build something that was faster than Java provides out of the box. I ended up creating two APIs: - A direct one that closely mirrors io_uring's behavior - A blocking one built with Virtual Threads in mind for remote files. This is the link to the project if you are interested…
- 1
- 2IU
2024 · github.com
- 3SH
I wrote this small client to read hackernews from my favorite editor. It's currently using an external HTTP API [0] but I'm working on my own proxy [1]. I'd love to actually scrape and cache all the info I need using lisp. However, my time constraints are keeping me away of that goal. I could definitely use some help here! :) I'm also planning to add support for comments and posting new things. Any feedback is highly appreciated! Thank you! [0] http://api.ihackernews.com/ [1] https://github.com/clarete/rhn
2013 · github.com
- 4EC
Hey all, As a CEO of a growing startup I don't get to code as often as I like and when I do, I try not to annoy my team with my terrible code :) So to scratch the itch, I've built some of side projects related to what our company does. The latest is embedcurl.com I see a lot of API docs and blogs posting curl commands that are really hard to read and I figured I could make them easier to read and add some niceties like easier copy/paste, tooltips on flags, etc. They also gracefully degrade if javascript isn't enabled back to a element. The parsing is done in Python with shlex and…
2013
- 5PC
I've created a quick application that stores data in IPFS (http://ipfs.io) which is a distributed web implementation. It's working as expected, paste some content, get a hash in the url and send to a friend. The content will be there forever and distributed to peers that asks for it. Demo: http://ipfsbin.xyz/#QmXdMvJaRrSTCAcDFMZLUFfm9uGK6Wq7qEVcwbvaQRxq8x This have a couple of advantages, mainly that the same content would have the same hash, meaning that things wouldn't be duplicated. Source is available for people interested in that here:…
2015
- 6HT
Hey everyone! I've been working on hsrs, a type-safe Haskell Bindings Generator for Rust. I couldn't really find any bindings generator that would create type-safe, rich bindings for Haskell from Rust. Naturally, both languages have rich type systems, so I was amazed that no awesome bindings generator already existed, hence I decided to write my own. hsrs feels very similar to pyo3 and napi-rs, and if you've used those, hsrs will feel right at home. What's unique about hsrs as opposed to hs-bindgen is that it has type-safe bindings for rich types, like Result, Maybe, etc. while also…
May 2026 · github.com
- 7CC
If you had to build a context window manager in 24h, would you stick to the existing model or come up with something better? Here's what I did: 1. Built a proxy that intercepts Codex's calls to OpenAI and rewrites them on the fly. 2. Replayed 3,807 rounds of SWE-bench Verified traces through it: avg prompt 44k → 6k tokens (-87%). 3. Posted it to HN to get the next reduction applied to my confidence interval — starting with the inevitable "How about accuracy?" npx -y pando-proxy · github.com/human-software-us/pando-proxy
Apr 2026 · npmjs.com
- 8TE
Hi! I’ve always wanted a simple way to throw my Python projects online. Just to try things out, share them, or test a webhook with a real endpoint. But every time I hit the same wall: Buy a server, Set up HTTPS, Configure DNS, Get a domain. Write boilerplate to glue it together. It always felt like too much for something so small that I wanted to test. So Ive been hacking on Thread4 (currently in alpha): a tiny platform where you can write a Python function and go live instantly at yourname.thread4.eu. It’s not for production use, just quick testing, experimenting, or sharing your idea…
2025 · thread4.eu
- 9IH
A simple Go-based HTTP proxy designed for detailed inspection of requests and responses. It logs traffic to the console with colorization, automatic decompression, and formatting for common content types, while remaining transparent to the client application. Ideal for debugging API interactions, understanding middleware behavior, or simply getting a clear view of HTTP traffic flow with jq-like pretty-printing & colorization of request/response. Automatically redacts parts of Authorization header to avoid token leakage.
2025 · github.com
- 10AI
After a lot of work, I'm proud to show HN my first real "startup idea". HN has been a real inspiration to me. Attach.io allows users to upload files up to 2GB (soon to be 8GB) and share them with others. Attach.io offers the regular file for download, and also if possible, an alternative preview version, so users can view files on their iPad for example. PSD files get converted to PNG AVI, WMV etc... to MP4 EPS/AI to PDF DOC(X), PPT(X) etc... to PDF This is a sneak preview, and is not 100% complete. Things I still have on my ToDo list: Allow users to email link to others, currently they have…
2012
- 11C1
I'm looking for feedback on this approach to an immutable string (istring). The idea is to provide a super fast immutable string that can be efficiently passed to lambdas as well as be 100% thread safe. Another bonus is faster hashing. If a string literal is given to istring, then the hash is computed at compile time! Other strings will have their hashes cached for later use. The istring is designed more or less after the python string in this regard. It should also consume less memory than std::string and perform faster in all other areas.
2014 · github.com
- 12FA
Hi, We've been working on open sourcing our streaming complex body parser/guard and wouldn't mind some more people contributing. It features: - JSON, urlencoded AND multipart form data parsing - Out-of-the-box constraints for resulting object depth, key amount and size; definable globally and per call, preventing resource exhaustion by bailing on the stream if limits are exceeded - Multi-boundary (!) multipart form data parsing - Multidimensional array form data with auto-increment and explicit indexes (formElement[] vs formElement[0]) - Object form data with dot notation, including…
2023 · github.com
- 13IB
The only way to go fast is full YOLO mode in your coding agent. I've got the local sandbox figured out (pro tip: Incus VMs work great) but I wanted to keep my agents from doing things like inadvertently blowing up my cloud services or chasing a prompt to POST to some random website. I struggle most with this on my side projects where my permission model isn't quite as robust as it is at the office. I started with a firewall on the Incus container but every time the agent needed access to something new, I was poking more holes in it - and it didn't differentiate between HTTP verbs. I've been…
Jul 2026 · trollbridge.dev
- 14HM
I made this as a pair programming exercise with o1-preview. o1 did most of the heavy lifting, through high level prompts, but eventually I needed to diverge from it to get to completion. My initial prompt was: --- I'm making a web app: It's like 4chan, but each thread starts with a gps coordinate. People can only post text and images. I want to build it with flask and sqlalchemy. I want just the backend and data model that supports these threads, anonymous users, and users that can register a permanent username. Write as much of it as you can for me. --- This produced a fully scaffolded…
2024 · mapchan.com
- 15IB
2016 · willmcgugan.com
- 16JI
2020 · jsonbox.io
- 17WP
2015 · github.com
- 18BJ
Just a simple tool I hacked together last night. I wanted to paste a bunch of JSON for reference in an IRC channel, but the JSON that I wanted to paste was not formatted. I didn't quickly find a pastebin that formatted JSON for me so I just made one. It's probably so simple that it's borderline useless, but here it is! http://jsonifier.com/ example output: http://jsonifier.com/paste/4e3f84b46f3b792dde000000
2011
- 19AS
2012 · apiaxle.com
- 20PA
2015 · github.com
- 21IB
I built over 3-4 weeks to solve my own pain point, picking up rust along the way. It has a browser version that works online/offline and cross platform desktop as well. It was a pretty intense sprint. About TreeSnap, well it simplifies this preparation of sharing code with Chat LLMs. In my use case, making o3 via ChatGPT a lot more cost-effective to use for these tasks compared to Cursor: How it works: Select files/folders → generates a single text bundle + ASCII tree Instantly shows per-file and total token counts (list & treemap views) Quickly trim unnecessary files or folders to…
2025 · treesnap.app
- 22EL
2022 · github.com
- 23IB
I spent a long time working in the payments industry, specifically on a rather niche reporting/aggregation platform with spiky workloads that were not easily parallelized. To pump as much data through our pipeline as possible, we had to rely on complex locking schemes across half a dozen or so not-so-micro services - keeping a clear mental picture of how the services interacted for a given data source was a major headache. This problem always intrigued me, even after I no longer worked at the company, and lead to the development of Wool. If you've worked with frameworks like Ray or…
Mar 2026 · github.com
- 24MC
I built murl because interacting with MCP (Model Context Protocol) servers from the command line was way more painful than it needed to be. MCP uses JSON-RPC 2.0 over HTTP, so every request means hand-crafting payloads with method names, params objects, and id fields. I wanted something that felt like curl. Given an MCP server at https://mcp.deepwiki.com/mcp, murl lets you append virtual paths like /tools or /tools/read_wiki_structure that map to MCP methods. These aren't real HTTP endpoints — murl translates them into the right JSON-RPC calls behind the scenes:…
Feb 2026 · github.com
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