Show HN for November 1, 2025

I spent a few hours last weekend testing whether AI can replace code by executing directly. Built a contact manager where every HTTP request goes to an LLM with three tools: database (SQLite), webResponse (HTML/JSON/JS), and updateMemory (feedback). No routes, no controllers, no business logic. The AI designs schemas on first request, generates UIs from paths alone, and evolves based on natural language feedback. It works—forms submit, data persists, APIs return JSON—but it's catastrophically slow (30-60s per request), absurdly expensive ($0.05/request), and has zero UI consistency between requests. The capability exists; performance is the problem. When inference gets 10x faster, maybe the question shifts from "how do we generate better code?" to "why generate code at all?"

An MIT-licensed human-friendly extension of JSON with quality-of-life improvements (comments, trailing commas, unquoted keys), extra types (tuples, bytes, raw strings), and semantic identifiers (think type annotations).

Built in Rust, with bindings for Python and WebAssembly, as well as syntax highlighting in VSCode. I made it for those like me who hand-edit JSONs and want a breath of fresh air.

It's at a good enough point that I felt like sharing it, but there's still plenty I wanna work on! Namely, I want to add (real) Node support, make a proper LSP with auto-formatting, and get it out there before I start thinking about stabilization.

I built this after seeing multiple teams accidentally ship API keys in their frontend code.

The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a <script> tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone.

KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT tokens, and more.

It's not perfect—there are false positives—but it's caught real issues in my own projects. Think of it as a quick sanity check before you ship.

Use case: Run it on staging before deploying, or audit your existing sites. Takes ~30 seconds per page.

MIT licensed, for authorized testing only.

https://github.com/Amal-David/keyleak-detector

Hi HN,

For the past few months, I’ve been building UnisonDB — a log-native database where the Write-Ahead Log (WAL) is the database, not just a recovery mechanism.

I started this because every time I needed data to flow — from core to edge, or between datacenters — I ended up gluing together a KV database + CDC + Kafka.

It worked, but it always felt like overkill: too many moving parts for even small workloads, and too little determinism.

What is it?

UnisonDB unifies storage and streaming into a single log-based core. Every write is: • Durable (appended to the WAL), • Ordered (globally sequenced for safety), • Streamable (available to any follower in real time).

It combines B+Tree storage (predictable reads, no LSM compaction storms) with WAL-based replication (sub-second fan-out to 100+ nodes).

Key Ideas

1. Storage + Streaming = One System — no CDC, no Kafka, no sidecar pipelines

2. B+Tree-Backed — predictable reads, zero compaction overhead

3. Multi-Model — KV, wide-column, and large objects (LOB) in one atomic transaction

4. Replication-Native — WAL streams via gRPC; followers tail in real time

5. Reactive by Design — every write emits a ZeroMQ notification

6. Edge-Friendly — replicas can go offline and resync instantly

Performance & Tradeoffs 1. Write throughput is lower than pure LSM stores (e.g. BadgerDB) — because writes are globally ordered for replication safety. Deliberate tradeoff: consistency > raw write speed.

2. Still ~2× faster than BoltDB with replication enabled.

Tech Details

Written in Go

FlatBuffers for zero-copy serialization

gRPC for streaming replication

GitHub: https://github.com/ankur-anand/unisondb

Hi, Prastik & Gaurab here. We’re building Jod(https://jodmcp.com), a project that grew out of our own frustration with current troubleshooting and observability workflows. Jod lets you chat with your logs to debug issues, generate on-demand dashboards, analyze service health, and monitor with ease, all from a single chat window.

You can ask things like:

“Why did latency spike last night?” “Show me 5xx errors from the payments service.” “Create a time series graph showing error counts for the last 6 hours.”

..and Jod will pull, summarize, or even visualize the answers for you.

Before Jod, we spent countless hours digging through CloudWatch and deployment logs, juggling 10+ dashboards just to trace one issue. It often took as much time as writing the actual code. During incidents, things got even worse, too much noise, endless context switching, and a lot of repetitive work. We figured we couldn’t be the only ones feeling that pain, so we decided to build something that could make the process a little easier.

Right now, Jod connects to CloudWatch through an MCP server, which streams responses to the backend over SSE, and the client displays everything in a conversational interface. You can ask questions about your logs, request visualizations with the @Graph annotation, or dig deeper into errors and trends. We’ve actually debugged and fixed multiple issues in Jod’s own codebase using Jod itself.

That said, it’s still early days, and there’s a lot we want to improve. On our short-term roadmap, we plan to:

- Add support for metrics and traces, not just logs.

- Expand to other providers like Azure and GCP.

- Release a standalone MCP server so developers can plug it into their own AI clients.

If any of this resonates with you, we’d love for you to try it out: https://jodmcp.com. It’s free to get started!

We’d really appreciate your feedback, bug reports, and suggestions on this. Thank you.

By encapsulating infrastructure within an extensible monorepository - recursively resolved from Git submodules at runtime - Proxmox-GitOps provides a comprehensive Infrastructure-as-Code (IaC) abstraction for an entire, automated, container-based infrastructure.

Core Concepts:

- Recursive Self-management: Control plane seeds itself by pushing its monorepository onto a locally bootstrapped instance, triggering a pipeline that recursively provisions the control plane onto PVE.

- Monorepository: Centralizes infrastructure as comprehensive IaC artifact (for mirroring, like the project itself on Github) using submodules for modular composition.

- Single Source of Truth: Git represents the desired infrastructure state.

- Loose coupling: Containers are decoupled from the control plane, enabling runtime replacement and independent operation.

I needed to stuff twice the telemetry through the same 115 kbaud line on a Cortex-M0+ that only had 8 kB flash left.

Micro-RLE is the smallest drop-in I could come up with: 264 B of Thumb code, 36 B of state, no malloc, worst-case 14 cycles/byte and still lossless for every 8-bit pattern.

On the usual sensor streams (ADC, IMU, GPS) it’s 33-70 % smaller than raw output and boots in < 600 µs, so you can fire-and-forget from main() before the PLL even locks.

Repo is a single .c file and a 3-function API—replace the weak emit() hook with your UART / DMA / ring-buffer and you’re done.

Size proof: arm-none-eabi-size micro_rle.o text data bss 264 0 36

MIT licensed, link in the repo. Happy to hear where else this fits!

- Open-source, No limits, No accounts

- LocalSend like speeds within the same local network, for transfers over internet - speeds depending on ISP's

AI is great and all, but it can't keep up with Zig's breakneck development pace. So I wondered: what would it actually take to build my own? Turns out, with a hybrid deterministic/stochastic approach, an RTX 3090, and 4.5 hours of training, I created a specialized LLM that runs on a regular laptop.

I've launched chess960v2 - a long-term project to run a tournament for the Stockfish engine in Chess960 (Fischer Random) mode.

The Core Idea: Stockfish will play against itself across all 960 possible starting positions. The goal is to collect a unique dataset and determine if any initial setups provide a statistically significant advantage against perfect play.

Current Status (Test Run):

The tournament is already live and running. You can follow the progress on the website: chess960v2.com

To speed up testing, time control is set to 0.5 seconds per move (instead of the planned 3 seconds for the main tournament).

Expected test duration: ~2 months.

This will help verify system stability, the game processing pipeline, and gather initial data.

Plan for Main Tournament (Early 2026):

Full time control: 3 seconds per move

Duration: exactly 1 year

The result will be a complete database of all games with detailed statistics

Technical Side: The project is written in Go (Golang) and serves as an orchestrator that manages multiple Stockfish processes, distributes positions, collects PGN files, and analyzes results. The source code will be published in the coming weeks once I've cleaned it up and written documentation.

Why this might interest the HN community:

Data: Will produce a valuable dataset for chess enthusiasts, analysts, and ML applications

Open Source & Go: Soon anyone can look under the hood of the Go implementation, which could be useful for those working with similar high-performance applications

Scale: A year of autonomous operation presents an interesting engineering challenge

Chess 960: The discipline itself sparks debates about "solving" classical chess, and this project could add data to that discussion

This is a modest announcement for now, without active social media promotion. I'd appreciate any feedback, improvement suggestions, or collaboration offers. Questions are welcome.

Project website: chess960v2.com

Hey everyone, I just launched the MVP of a mobile app I’m building that helps people learn languages through listening. It’s still early — I haven’t uploaded the full lesson content yet — but I’d love to get your feedback on the concept and design. https://praatmvp.figma.site/

I’m planning to launch the full version in the next two weeks. If you’re interested, you can join the waiting list here: https://www.makeform.ai/f/yyXGVerS

tl;dr - Dwellable is a free app that takes property records and delivers tools and insights for homeowners.

My wife and I bought our first home in 2020, during peak COVID. When visiting homes, our agent actually asked us to waive the home inspection, which was terrifying. I ended up walking through the house myself with a set of handwritten notes: "check if Kitchen outlets are GFI", "make sure toilet flushes", "test the bath fan", etc.

That experience was the seed for Dwellable, a home maintenance and inspection app for homeowners like us who didn’t know where to start (both before and after buying).

The app automatically pulls your property records (square footage, year built, fuel type, etc.) and uses AI to recommend reminders and seasonal maintenance tasks. It’s free right now, built entirely native on iOS and Android.

The app is free now while we gather feedback from users.

Tech stack:

- Backend: Python + gRPC

- iOS: Native SwiftUI

- Android: Native Jetpack compose

- Landing page: Github pages (vanilla JS + HTML)

I created this tool after getting fed up with using a flashdrive and cloud storage for LAN file transfers. So I made this tool to help talk and send files with my peers! I’d love for you all to check out the project and give feedback. This is my first tool I am showcasing, and I’m excited to see what you think!

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