Show HN Daily Selection (2025-07-26)
- I built a biological network visualization tool
- Price Per Token – LLM API Pricing Data
- The Montana MiniComputer
- A macOS clock that stays visible when coding or binging in fullscreen
- Open-source macOS CLI tool for aliasing and timing command line runs
- LogMerge – View multiple log files in a merged view
- Autark – A self-contained build system for C/C++
- Metaessen 2.10 – Manage resources for practical use
- Narev – Open-Source FinOps for AI and Cloud Spend
- Baag – Easily run multiple AI coding agents on the same project
I built a biological network visualization tool [Research]
20 points, 9 comments
An interactive biological network visualization tool with real-time editing and JSON support.
- Interactive network visualization powered by Cytoscape.js
- Real-time graph editing and manipulation
- JSON import/export functionality
- Responsive design (desktop-friendly, mobile version planned)
- Built with Next.js 14, TypeScript, FastAPI, and Python
- Demo showcases complex biological pathway mapping (e.g., TBI Nasal Spray mechanism)
Discussion Link, Original Link
Price Per Token – LLM API Pricing Data [Finance]
303 points, 121 comments
A website aggregating up-to-date pricing per token for various LLM APIs in one place.
- Provides latest model pricing data from multiple LLM providers
- Saves time by eliminating the need to check individual provider websites
- Plans to expand coverage to include image generation models
- Highlights pricing differences across platforms for the same models
Discussion Link, Original Link
The Montana MiniComputer [Education]
99 points, 21 comments
A 16-bit virtual teaching computer designed to help students learn low-level computing with limited hardware.
- 16-bit architecture with 4KB RAM
- Web interface with interactive components (registers, memory view, gamepad, console)
- Integrated file browser and editor for programming
- Includes sample programs (Snake, Conway's Game of Life)
- Early-stage C compiler in development
- Designed for educational use with planned improvements for interactivity
Discussion Link, Original Link
A macOS clock that stays visible when coding or binging in fullscreen [Productivity]
49 points, 33 comments
A minimalist macOS app that displays the time in the corner of your screen even in fullscreen mode or with hidden menu bars.
- Always visible clock in fullscreen or with auto-hidden menu bars
- Highly customizable with various date formats and styles
- Seamless integration across multiple monitors
- Designed for digital minimalists and power users
- Works well with TopNotch and auto-hide dock for distraction-free workspaces
Discussion Link, Original Link
Open-source macOS CLI tool for aliasing and timing command line runs [Developer Tools]
3 points, 0 comments
A macOS CLI tool for aliasing and timing command line runs to simplify repetitive tasks.
- Allows aliasing lengthy commands (e.g.,
ez build,ez test) - Tracks and displays execution time for subprocesses
- Supports running commands in parallel as separate subprocesses
Discussion Link, Original Link
LogMerge – View multiple log files in a merged view [Developer Tools]
3 points, 0 comments
LogMerge is a Python-based tool for merging and viewing multiple log files in a single, chronologically ordered view with advanced filtering.
- Merge and display multiple log files chronologically
- Live log monitoring with auto-scroll
- Add files individually or recursively with regex filtering
- Plugin-based system for supporting any log format
- Advanced filtering (discrete values, numeric ranges, regex, time-based queries)
- Color-coded file identification
- Configurable columns and ordering
- Built-in plugins for syslog, CANKing, and dbglog formats
Discussion Link, Original Link
Autark – A self-contained build system for C/C++ [Developer Tools]
3 points, 1 comments
Autark is a self-contained build system for C/C++ that bootstraps directly from source code with minimal dependencies.
- Requires only
shand a C compiler - No external dependencies or pre-installed tools needed
- Bootstraps directly from project source code
- Designed for simplicity and self-sufficiency
Discussion Link, Original Link
Metaessen 2.10 – Manage resources for practical use [Productivity]
3 points, 2 comments
Metaessen 2.10 is a practical, open-source resource manager that functions as a bookmark manager or note-taking app with improved UI and advanced features.
- Group selection and deletion
- Shortcuts for creation, selection, and actions
- System tree condition search and keyword filter
- Options to delete resources when removing instances or systems
- Improved UI and user experience
- Data statistics display for total entities
Discussion Link, Original Link
Narev – Open-Source FinOps for AI and Cloud Spend [Finance]
3 points, 2 comments
Narev is an open-source FinOps tool for managing AI and cloud spending by unifying billing data from multiple providers.
- Ingests and normalizes billing data using FOCUS 1.2 standard
- Supports AWS, Azure, GCP, and OpenAI
- Provides a unified dashboard for cost visibility
- Self-hosted for data privacy
- Early-stage (v0.1.0) with demo available via Docker
- Open for feedback and contributions on GitHub
Discussion Link, Original Link
Baag – Easily run multiple AI coding agents on the same project [Developer Tools]
4 points, 1 comments
Baag is a CLI utility to manage multiple AI coding agents on the same project using git worktrees.
- Simplifies parallel task management with AI coding agents
- Works with any setup (Claude/Codex/Gemini + Cursor/Vim/etc.)
- Manages git worktrees within your repo
- Configures dev environments as needed
- Solves workflow friction for parallel AI-assisted coding