Show HN Daily Selection (2025-10-01)
- Sculptor, the Missing UI for Claude Code
- JPDB, GDB for Your Waveforms
- Devbox – Containers for better dev environments
- Glide, an extensible, keyboard-focused web browser
- Build AI Agents in WhatsApp (Beta)
- Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol
- Rust BPE tokenizer for Qwen models that's 12x faster than HuggingFace
- WebRTC LAN Baby Monitor for iOS and iPadOS
- Document extraction with human feedback loop
- Peanut – A Modern Money App
- Simple WhatsApp API (Open Source)
- ProcASM v1.1
- I got tired of spreadsheets, so I built a Python GUI to track invoices
- Sparky as a simple orchestrator for self hosted clusters
- Piles – zero-interaction web clipping
Sculptor, the Missing UI for Claude Code [Developer Tools]
121 points, 55 comments
Sculptor is a desktop app that provides a secure UI for running Claude Code agents in isolated Docker containers to avoid merge conflicts and dependency issues.
- Runs Claude Code agents in separate Docker containers for security and isolation
- Features "Pairing Mode" for real-time bidirectional code sync with your IDE
- Allows manual pull/push of code between containers and IDE
- Plans to add conversation forking and container state rollback
- Free to use with a focus on early user feedback
Discussion Link, Original Link
JPDB, GDB for Your Waveforms [Developer Tools]
8 points, 1 comments
JPDB is a GDB-like debugger for waveforms, enabling step-by-step debugging of programs executed during waveform creation.
- Specialized for debugging waveforms with a custom GDB client (shucks)
- Integrates with the Surfer waveform viewer for signal analysis
- Supports custom CPU development (excluding superscalar designs for now)
- Provides a GDBstub server for compatibility with standard GDB clients
- Demo available via YouTube for practical demonstration
Discussion Link, Original Link
Devbox – Containers for better dev environments [Developer Tools]
107 points, 51 comments
Devbox is a lightweight, open-source CLI tool for creating isolated development environments using Docker, keeping code in flat folders on the host machine while running projects in disposable containers.
- Instant setup with
devbox initanddevbox shell - Configurable via JSON (
devbox.json) for reproducible setups - Docker-in-Docker support by default
- Host-friendly editing with containers handling runtime
- Templates for Python, Node.js, Go, and web dev
- Advanced options like port mapping, env vars, and resource limits
- MIT-licensed, Linux-focused (Debian/Ubuntu/WSL2)
- Easy installation via curl script
Discussion Link, Original Link
Glide, an extensible, keyboard-focused web browser [Consumer Tech]
10 points, 3 comments
Glide is an extensible, web browser designed for keyboard-focused navigation.
- Extensible with customizable features
- Optimized for keyboard-driven usage
- Lightweight and fast browsing experience
Discussion Link, Original Link
Build AI Agents in WhatsApp (Beta) [ChatBots]
3 points, 2 comments
AI agents can be built and used directly within WhatsApp.
- Enables AI agent creation within WhatsApp
- Currently in beta testing phase
Discussion Link, Original Link
Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol [Developer Tools]
48 points, 34 comments
A Rust implementation of Cloudflare's Cap'n Web protocol with full wire compatibility and multi-transport support.
- Wire compatibility verified via integration tests against TypeScript reference
- Supports multiple transports: HTTP batch, WebSocket, and WebTransport (HTTP/3)
- Includes a complete IL (intermediate language) expression evaluator
- Implements promise pipelining with dependency resolution
- Uses a builder pattern with type-level guarantees for ergonomic APIs
- Developed with AI-assisted translation but required human judgment for architectural decisions
- Comprehensive test coverage
- Early-stage project seeking feedback on API ergonomics and edge cases
Discussion Link, Original Link
Rust BPE tokenizer for Qwen models that's 12x faster than HuggingFace [Developer Tools]
3 points, 0 comments
Rust BPE tokenizer for Qwen models offering 12x faster performance than HuggingFace.
- Optimized for Qwen models
- Uses Rust for high performance
- 12x speed improvement over HuggingFace tokenizer
Discussion Link, Original Link
WebRTC LAN Baby Monitor for iOS and iPadOS [Consumer Tech]
49 points, 8 comments
A WebRTC-based baby monitor app for iOS/iPadOS that works over LAN without external servers.
- Uses WebRTC for direct device-to-device communication
- No external servers or cloud storage, ensuring privacy
- Works with existing Apple devices (iPhones, iPads)
- Supports testing via simulators
- Avoids sketchy third-party hardware or data risks
Discussion Link, Original Link
Document extraction with human feedback loop [Finance]
3 points, 0 comments
A tool for extracting and assessing business health data from financial documents with a human feedback loop to improve accuracy.
- Automatically extracts structured data from complex financial documents and bank statements
- Includes a feedback loop for users to correct errors and refine field-level extraction prompts
- AI-assisted target form creation and document upload with multiple model options
- Provides PDF citations for verification and supports iterative prompt refinements
- Currently in beta with early adoption by credit analysts
Peanut – A Modern Money App [Finance]
11 points, 10 comments
Peanut is a decentralized, non-custodial payments app that works globally, integrating with banks, local payment systems, and crypto.
- Works as a Progressive Web App, avoiding app store restrictions
- Decentralized and non-custodial—users retain full control of their funds
- Secured by passkey for enhanced security
- Fully open-source for transparency
- Free for users, with future monetization via merchant fees
- Supports instant payments via shareable links
- Plans to expand banking coverage across EU, US, and LATAM
Discussion Link, Original Link
Simple WhatsApp API (Open Source) [ChatBots]
12 points, 6 comments
Simple WhatsApp API (Open Source) built to address attachment support issues in existing APIs.
- Open-source solution
- Focuses on sending messages
- Addresses attachment support limitations
Discussion Link, Original Link
ProcASM v1.1 [Developer Tools]
11 points, 1 comments
ProcASM is a visual programming language with an improved web-based UI and backend for project storage.
- General-purpose visual programming language
- Web-based frontend (HTML/CSS/JS) replacing previous SDL3 GUI
- Backend server for storing user projects
- Includes tutorial with text and video guides
- Future plans include developing software with ProcASM and blogging about its advantages
Discussion Link, Original Link
I got tired of spreadsheets, so I built a Python GUI to track invoices [Finance]
4 points, 0 comments
A Python GUI tool for freelancers to automate invoice tracking by parsing PDF/Word invoices and storing data in SQLite.
- Automates invoice parsing from PDF/Word files into a local SQLite database
- Basic Tkinter GUI focused on functionality over aesthetics
- Uses invoice naming patterns to match clients for streamlined tracking
- Includes a stats dashboard (currently Euro-centric) for payment analysis
- Open-source and available on GitHub for customization/feedback
Discussion Link, Original Link
Sparky as a simple orchestrator for self hosted clusters [Developer Tools]
7 points, 0 comments
Sparky is a simple orchestrator designed for self-hosted clusters.
- Simple orchestration for self-hosted clusters
- Lightweight and easy to deploy
- Designed for small-scale or personal use cases
Discussion Link, Original Link
Piles – zero-interaction web clipping [Productivity]
3 points, 2 comments
Piles is a zero-interaction browser extension for instantly saving highlighted text as notes without any additional steps.
- Saves highlighted text instantly as notes
- No tags, categories, or formatting required
- Quick setup with just an email and extension installation
- Minimalist and distraction-free workflow