Show HN Daily Selection (2025-10-08)
- Timelinize – Privately organize your own data from everywhere, locally
- MARS – Personal AI robot for builders (< $2k)
- Read Kagi News on Playdate
- Arc – high-throughput time-series warehouse with DuckDB analytics
- Gotask, a simple task manager CLI built using Golang
- Greenonion.ai – AI-Powered Design Assistant
- Rethinking audit trails in Django (structured and database-free)
- We trained an MoE LLM built for developer tasks
- Kalendis – Scheduling API (keep your UI, we handle timezones/DST)
- Debug and Inspect TLS Encrypted Network Traffic from Any Source
- FizzBee – Formal Model based autonomous testing
- Strikethrough – a daily puzzle where you make words by deleting letters
- Mix – Open-source multimodal agents SDK
- 1-Bit Pixel Art Font Editor
- NewsGoat – A terminal-based RSS reader written in Go
Timelinize – Privately organize your own data from everywhere, locally [Productivity]
301 points, 64 comments
A local, private tool to organize and maintain personal data from various cloud sources.
- Stores data locally to avoid reliance on cloud services
- Keeps exported data active and relevant instead of unused
- Designed for long-term personal use and control
- Open to collaboration and potential rebranding
Discussion Link, Original Link
MARS – Personal AI robot for builders (< $2k) [Consumer Tech]
54 points, 44 comments
MARS is an affordable, general-purpose AI robot with an open onboard agentic OS, designed for hobbyists and builders.
- Comes pre-assembled and calibrated with onboard Jetson Orin Nano 8GB compute
- Features a 5DoF arm with wrist camera, RGBD wide-angle cam, 2D LiDAR, and speakers
- Controlled via a dedicated app or leader arm compatible with iPhone and Android
- Includes USB ports and GPIO pins for additional sensors or effectors
- Novel SDK (BASIC) enables AI agent-like behavior with vision, speech, planning, and real-time action
- Supports ROS2 for low-level control and easy sharing of custom behaviors
- Open-source hardware and software planned for community contributions
- Priced under $2k with a temporary discount code (HACKERNEWS-INNATE-MARS)
Read Kagi News on Playdate [Consumer Tech]
3 points, 0 comments
Read Kagi News on Playdate.
- Access Kagi News on Playdate device
- No additional text details provided
Discussion Link, Original Link
Arc – high-throughput time-series warehouse with DuckDB analytics [Developer Tools]
17 points, 11 comments
Arc is a high-throughput time-series data warehouse combining fast ingestion with strong analytical queries using DuckDB.
- Ingest data via a binary MessagePack API or Line Protocol for compatibility
- Stores data as Parquet with hourly partitions
- Query via DuckDB engine using SQL
- High write throughput (~1.88M records/sec untuned)
- Strong ClickBench performance (35.18s cold, ~0.81s hot)
- Open-sourced for community review and contributions
Discussion Link, Original Link
Gotask, a simple task manager CLI built using Golang [Productivity]
3 points, 0 comments
Gotask is a simple CLI task manager built with Golang for exploring the language's features.
- Built using Golang
- Command-line interface (CLI)
- Focused on simplicity
- Designed for learning purposes
Discussion Link, Original Link
Greenonion.ai – AI-Powered Design Assistant [Design]
19 points, 16 comments
AI-powered design assistant that creates editable layouts from user-provided images and descriptions.
- Generates cohesive designs (layout, composition, colors, typography) based on user input
- Fully editable elements (text, spacing, colors, hierarchy)
- No image generation—users supply their own images
- Browser-based editing and export for web, print, or campaigns
- Simplifies design without relying on templates or complex tools
Discussion Link, Original Link
Rethinking audit trails in Django (structured and database-free) [Developer Tools]
5 points, 0 comments
Django-activity-audit replaces database-heavy audit trails with structured JSON logs for better performance and analytics.
- Extends Django’s logging with custom AUDIT and API levels
- Captures CRUD and API events as structured JSON logs
- Ships logs to ClickHouse via Vector for efficient storage
- Enables querying and visualization via Grafana
- Eliminates extra database writes, reducing costs and improving performance
Discussion Link, Original Link
We trained an MoE LLM built for developer tasks [Developer Tools]
3 points, 0 comments
An MoE LLM specifically designed for developer tasks.
- Built using a Mixture of Experts (MoE) architecture
- Optimized for developer-related tasks
- No additional details provided in the post
Discussion Link, Original Link
Kalendis – Scheduling API (keep your UI, we handle timezones/DST) [Developer Tools]
4 points, 1 comments
Kalendis is an API-first scheduling backend that handles complex scheduling tasks like time zones, DST, and conflict-safe bookings while letting users retain their own UI.
- Generates typed clients and API route handlers for Next.js/Express/Fastify/Nest
- Manages recurring rules, one-off exceptions, and blackouts in a queryable format
- Provides conflict-safe endpoints for creating, updating, and canceling bookings
- Uses REST API with ISO-8601 timestamps and IANA time zones
- Offers MCP tool integration for generating frontend/backend clients and API routes
- Free account available for testing with API key access
Discussion Link, Original Link
Debug and Inspect TLS Encrypted Network Traffic from Any Source [Developer Tools]
3 points, 1 comments
Debug and inspect TLS encrypted network traffic from any source.
- Debug TLS encrypted traffic
- Works with any network source
- Provides inspection capabilities
Discussion Link, Original Link
FizzBee – Formal Model based autonomous testing [Developer Tools]
9 points, 6 comments
FizzBee is a model-based testing tool that generates tests from behavior specifications instead of manual test cases.
- Uses a Python-like specification language to describe expected behavior
- Supports exhaustive verification for design bugs (like formal methods)
- Automatically generates tests by mapping models to the actual system
- Eliminates hand-crafted test cases and reduces maintenance overhead
- Tests both concurrent and sequential behavior without cascading rewrites
- Currently supports Go, with Java and Rust planned for future releases
Discussion Link, Original Link
Strikethrough – a daily puzzle where you make words by deleting letters [Entertainment]
5 points, 2 comments
A daily word puzzle game where players delete letters from a seed word to form smaller valid words.
- Start with a long seed word (e.g., "LONGBOARD") and remove letters to create valid smaller words.
- Find 10 words to complete the puzzle or aim to discover all possible words.
- New puzzles daily with no sign-up required.
- Inspired by reversing the concept of Scrabble.
Discussion Link, Original Link
Mix – Open-source multimodal agents SDK [Developer Tools]
5 points, 1 comments
Mix is an open-source multimodal agents SDK designed for building applications with video, audio, and PDF analysis capabilities.
- Native support for video/audio/PDF analysis using Gemini for vision and Claude for reasoning
- Multi-model routing to avoid single-provider lock-in
- One-command Supabase setup for easy cloud deployment
- HTTP architecture with visual DevTools for debugging agent workflows
- Go backend with 50-80% lower memory footprint than Node.js
- Python and TypeScript clients available
- Example use cases include portfolio analyzers and YouTube search agents
Discussion Link, Original Link
1-Bit Pixel Art Font Editor [Design]
5 points, 1 comments
A browser-based tool for designing 1-bit pixel art fonts for Arduino and ESP32 projects with OLED screens.
- Supports fixed-width and variable-width fonts
- Includes a live preview area
- Exports fonts in multiple formats
- Comes with built-in example fonts
- Fully client-side, works offline
- Inspired by creator's previous tiny font projects
Discussion Link, Original Link
NewsGoat – A terminal-based RSS reader written in Go [Developer Tools]
8 points, 1 comments
A terminal-based RSS reader written in Go.
- Lightweight and fast
- Command-line interface
- Written in Go for efficiency