Show HN: We built an open-source alternative to expensive pair programming apps https://bit.ly/4g8mMl9

Show HN: We built an open-source alternative to expensive pair programming apps My friend and I grew frustrated with the high cost of existing pair programming tools, and of course of grainy screens when we used Huddle or similar tools. We believe core developer collaboration shouldn't be locked behind an expensive subscription. So for the past year we spent our nights and weekend building Hopp, an open-source alternative. We would love your feedback and we are here to answer any and all questions. https://bit.ly/4pmmnzN September 1, 2025 at 03:36PM

Show HN: slack-explorer-mcp – Let AI find historical context in Slack https://bit.ly/3HECPKH

Show HN: slack-explorer-mcp – Let AI find historical context in Slack I built an MCP server that lets AI tools search Slack history to answer “why did we do X?” It reads messages and threads with your Slack user token, so agents like Claude Code/Desktop, VS Code and Cursor can pull context that isn’t in code or PRs. Features: * Search by channel, user, date range, reactions, has:file, etc. * Get full thread replies. * Look up users by ID or display name. Example uses: * “Why is foo_summary BigQuery table a materialized view?” * “Summarize this week’s topics in #random.” More details in the blog post: https://bit.ly/47kc6gN... https://bit.ly/3HTPhX2 September 3, 2025 at 12:14AM

Show HN: LightCycle, a FOSS game in Rust based on Tron https://bit.ly/466N02F

Show HN: LightCycle, a FOSS game in Rust based on Tron https://bit.ly/3UXbZjW September 3, 2025 at 01:08AM

Show HN: Android Toolkit for Debugging Networks https://bit.ly/4pa1TtV

Show HN: Android Toolkit for Debugging Networks https://bit.ly/4gdH8t5 September 2, 2025 at 12:34AM

Show HN: Cepl – A readline C/C++ REPL with history, tab-completion, and undo https://bit.ly/4lO80AZ

Show HN: Cepl – A readline C/C++ REPL with history, tab-completion, and undo https://bit.ly/45JHlk7 September 2, 2025 at 12:42AM

Show HN: A usercript to help you filter "Who's Hiring". https://bit.ly/47tl1g5

Show HN: A usercript to help you filter "Who's Hiring". This will work on any Hacker news post but it is especially useful for "Who's Hiring?". It will filter out comments that don't match the set filters. You can set multiple filters. Filters have an "and" relationship. Filters are regular expressions. https://bit.ly/3JF6VhD September 2, 2025 at 01:12AM

Show HN: The ASCII Side of the Moon https://bit.ly/3UYkfA6

Show HN: The ASCII Side of the Moon Happy Labour Day, For your consideration is a rendering of the Moon with changing Lunar phases, Earth-Moon distance, and librations all in ASCII. The inspiration was asciimoon.com that previously appeared on HN but did not accurate phases. https://bit.ly/47Xm0oP September 1, 2025 at 02:06PM

Show HN: AfriTales – Discover the Magic of African Storytelling https://bit.ly/4p1J6kj

Show HN: AfriTales – Discover the Magic of African Storytelling Hi HN, I've been working on AfriTales, a flutter based mobile app that brings African folktales into modern stories narrated episodes wrapped in a children and adult friendly UI player. The stories are created to cover north, south, west and east Africa. I think of it as a digital by-the-fire-side. Why AfriTales: Cultural relevance: There is a gap in culturally-rich audio-native storytelling apps for Africans, the diaspora and people interested in African stories. Modern Influence: Modern UI makes the the app feel elegant and emotionally resonant. Retention via structure: Episodes are short (2-5 minutes) and there are stories series for premium users. MVP features include: A launch landing page ( https://bit.ly/3Vq6t9x ) for early engagement and waitlist signups. I have currently sourced over 100 stories. Thanks to Google's Gemma 3 270M, users can generate stories with their own twist. Freemium model: 3 free tales per day, plus premium subscription for unlimited access. Robust Flutter structure: Architecture with TTS integration, and images for context. I am starting in Ghana before expanding, and I'd love feedback from this community: Would you (or your child) use an audio-based storytelling app with a strong regional cultural tie? Suggestions for retention strategies or content formats that engage long-term users? Thanks https://bit.ly/3Vq6t9x September 1, 2025 at 12:53PM

Show HN: Blueprint: Fast, Nunjucks-like templating engine for Java 8 and beyond https://bit.ly/4neuo7X

Show HN: Blueprint: Fast, Nunjucks-like templating engine for Java 8 and beyond I love the simplicity, expressibility and extendibility of Nunjucks. But I was not able to find something with similar for Java, especially with the same syntax. So, built one. And it's pretty fast too. https://bit.ly/4mRHzMb September 1, 2025 at 11:46AM

Show HN: Spotilyrics – See synchronized Spotify lyrics inside VS Code https://bit.ly/47iyjff

Show HN: Spotilyrics – See synchronized Spotify lyrics inside VS Code https://bit.ly/426tWAg September 1, 2025 at 12:09AM

Show HN: Free printable coloring pages for K-Pop Demon Hunters https://bit.ly/3HZmmRb

Show HN: Free printable coloring pages for K-Pop Demon Hunters I made a tiny, single-topic coloring pages site focused on K-Pop Demon Hunters. It's downloadable as PDF/PNG in A4 & US Letter, with no login. https://bit.ly/4lSPveY August 31, 2025 at 02:22AM

Show HN: Q.js – Smaller than React/Vue, yet more powerful (40KB gzipped) https://bit.ly/3Vx1zHL

Show HN: Q.js – Smaller than React/Vue, yet more powerful (40KB gzipped) Q.js is a lightweight JS framework that I recently distilled from our in-house Qbix platform that I’ve been building since 2011. It powers many of our social apps, which have all the features of Facebook, LinkedIn, X, etc. We’re not a big company like Google or Meta, so we never released it publicly. Now I’d like to, and thought it would be a good idea to post it on HN and gather some feedback. Q.minimal.js was designed to be dropped into any website. It lazy-loads all your components only as they are needed and appear on the screen. The minimal file is meant as a starting point for developers, and if you later want more features from the Qbix platform, you can simply swap it out for the larger Q.js file instead. Here are some advantages of Q.minimal.js compared to React, Angular, Vue, or whatever you might be using now: 40KB gzipped, smaller than React (without ReactDOM), smaller than Vue runtime, far smaller than Angular No build step, just drop it in; works with plain .html

Show HN: An interface for doing research fast with an LLM https://bit.ly/4lSTGHA

Show HN: An interface for doing research fast with an LLM I built ProRead as a new interface for researching anything with an LLM. Instead of chat, you explore topics through an interactive map of ideas. The interface changes the level of detail like when zooming in and out on Google Maps. Click to go deeper, expand branches, and always stay grounded in sources. You still have chat for questions, and can switch to listening seamlessly. Curious if this feels useful! https://bit.ly/4mGMhwl August 31, 2025 at 01:13AM

Show HN: I made an English version of the game "Funeral of Freiren" https://bit.ly/46ftqT1

Show HN: I made an English version of the game "Funeral of Freiren" https://bit.ly/4oZz03t August 31, 2025 at 01:18AM

Show HN: A collection of generic header only data structures written in C https://bit.ly/41wQXwd

Show HN: A collection of generic header only data structures written in C https://bit.ly/3JDrxH4 August 30, 2025 at 01:40AM

Show HN: ElectroBench https://bit.ly/4p0iRe2

Show HN: ElectroBench A benchmark I've maintained for a few years, tell me your scores. https://bit.ly/46l1EDN August 29, 2025 at 10:46PM

Show HN: A fun Unicode tool to make your text look cool anywhere https://bit.ly/3HTRulb

Show HN: A fun Unicode tool to make your text look cool anywhere https://bit.ly/4nc1PYR August 29, 2025 at 03:14AM

Show HN: Cholidean Harmony Structure https://bit.ly/41rQ48b

Show HN: Cholidean Harmony Structure https://bit.ly/47dbae6 August 28, 2025 at 05:45PM

Show HN: Smart Buildings Powered by SparkplugB, Aklivity Zilla, and Kafka https://bit.ly/47SaVp0

Show HN: Smart Buildings Powered by SparkplugB, Aklivity Zilla, and Kafka https://bit.ly/46dTCgU August 28, 2025 at 10:33PM

Show HN: AIKit - Minimal library for calling OpenAI, Anthropic, Gemini gen APIs https://bit.ly/4g65lla

Show HN: AIKit - Minimal library for calling OpenAI, Anthropic, Gemini gen APIs AIKit is a minimal TypeScript wrapper that gives you unified access to the generation APIs of OpenAI, Anthropic, and Google Gemini—complete with streaming, multimodal inputs, and tool calling. No extra runtime packages: just the fetch that ships with modern Node and browsers. https://bit.ly/3HIgThJ August 28, 2025 at 04:49AM