Show HN Daily Selection (2025-06-25)
- VSCan - Detect Malicious VSCode Extensions
- Autumn – Open-source infra over Stripe
- Oasis – an open-source, 3D-printed smart terrarium
- I Am Not Helpful AI – An AI roasts your idea instead of validating them
- I built an under-the-door fan duct to lower bedroom CO2
- Comparator - I built a free, open-source app to compare job offers
- Logcat.ai:AI-powered observability for Operating Systems(Android+Linux)
- The Black Eye Galaxy (M64), 11 hours of exposure from my backyard
- Burrito: An embeddable QuickJS wrapper written in Nim
- 15y Old's AI Assistant Tool Makes Money
- Goeval v1.2.0: run Go oneliners from the command line
VSCan - Detect Malicious VSCode Extensions [Developer Tools]
6 points, 0 comments
A free tool to scan VSCode extensions for malware, dangerous permissions, and vulnerabilities.
- Detects hidden malware and obfuscated code
- Identifies dangerous permissions and API misuse
- Checks for vulnerable dependencies and suspicious network connections
- Generates developer-friendly security reports
- Includes custom sandboxing security architecture for runtime protection
- No login required, 100% free
Discussion Link, Original Link
Autumn – Open-source infra over Stripe [Developer Tools]
93 points, 32 comments
Autumn is an open-source infrastructure layer over Stripe that simplifies pricing and billing logic management for applications.
- Abstracts complex billing workflows into simple function calls for payments, upgrades, and downgrades
- Provides a React hook for frontend integration to handle paywalls and usage data
- Supports multiple pricing models (subscriptions, usage-based, credits, seat-based)
- Offers a UI for easy pricing changes without code modifications
- Includes a shadcn/ui component library for seamless integration
- Free for builders with open-source availability on GitHub
Discussion Link, Original Link
Oasis – an open-source, 3D-printed smart terrarium [Consumer Tech]
96 points, 18 comments
An open-source, 3D-printed smart terrarium for growing plants with automated environmental controls.
- High-power LED lighting for plant growth
- Built-in water tank and mister for hydration
- Fans for airflow and temperature regulation
- Temperature and humidity sensing
- Wi-Fi connectivity with a web-based control interface
- Fully open-source design (electronics in KiCad, 3D models in CadQuery, software in Rust)
- Detailed build guide and interactive 3D model available
Discussion Link, Original Link
I Am Not Helpful AI – An AI roasts your idea instead of validating them [Entertainment]
3 points, 0 comments
AI that critiques your ideas instead of supporting them.
- Roasts ideas instead of validating them
- Provides humorous or critical feedback
- Alternative to supportive AI tools
Discussion Link, Original Link
I built an under-the-door fan duct to lower bedroom CO2 [Health]
35 points, 16 comments
A 3D-printed under-the-door fan duct designed to reduce bedroom CO2 levels by improving air circulation.
- Lowers CO2 from 1700 ppm to ~900 ppm for better sleep
- Uses CadQuery, a Python library for parametric 3D modeling
- Open-source design with full build documentation
- More efficient than manual GUI-based prototyping
Discussion Link, Original Link
Comparator - I built a free, open-source app to compare job offers [Business]
76 points, 42 comments
A free, open-source app for comparing job offers.
- Open-source
- Free to use
- Helps compare job offers
Discussion Link, Original Link
Logcat.ai:AI-powered observability for Operating Systems(Android+Linux) [Developer Tools]
5 points, 0 comments
AI-powered observability platform for Android and Linux system-level logs.
- Analyzes logcat logs for root cause analysis with natural language search
- Processes Android bugreports to identify memory leaks, performance bottlenecks, and system stress
- Supports dmesg (kernel log) analysis for Linux
- Aims to be a unified observability tool for operating systems
- Currently in free beta with plans to expand to more platforms
Discussion Link, Original Link
The Black Eye Galaxy (M64), 11 hours of exposure from my backyard [Image]
3 points, 0 comments
Astrophotographer captures the Black Eye Galaxy (M64) with 11 hours of exposure from their backyard, sharing gear and editing details.
- Features a striking dark dust lane in the galaxy
- Includes detailed explanation of the capture process
- Provides insights on astrophotography gear and editing techniques
- Encourages discussion on favorite deep-space subjects
Discussion Link, Original Link
Burrito: An embeddable QuickJS wrapper written in Nim [Developer Tools]
3 points, 0 comments
A QuickJS wrapper for Nim enabling JavaScript embedding and bidirectional interaction in Nim applications.
- Embeds a full JavaScript REPL in Nim apps
- Allows calling JavaScript from Nim and vice versa
- Supports interactive execution
- Developed quickly with comprehensive code, docs, tests, and landing page
Discussion Link, Original Link
15y Old's AI Assistant Tool Makes Money [Productivity]
4 points, 0 comments
AI assistant that generates Excel formulas, SQL queries, and automation scripts from plain English.
- Infinite usage with no query limits
- Converts natural language to Excel formulas
- Creates SQL queries from prompts
- Automates repetitive spreadsheet tasks
- Provides production-ready code instantly
- Designed for business users, analysts, and students
Discussion Link, Original Link
Goeval v1.2.0: run Go oneliners from the command line [Developer Tools]
3 points, 0 comments
Goeval v1.2.0 allows running Go one-liners from the command line by transpiling them into full Go programs.
- Frontend to the Go toolchain for executing Go one-liners
- Transpiles command-line Go snippets into full programs
- New -play flag runs code on Go Playground infrastructure
- -share flag enables instant sharing of code on Go Playground
- Simplifies transition from one-liners to full Go programs