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Project Vend: Can Claude run a small shop? (And why does that matter?)

I Switched from Flutter and Rust to Rust and Egui

The time is right for a DOM templating API

Alternative Layout System

Launch HN: Issen (YC F24) – Personal AI language tutor

Hey HN, we're Mariano and Anton from ISSEN (<a href="https://issen.com">https://issen.com</a>), a foreign language voice tutor app that adapts to your interests, goals, and needs.<p>Demo: <a href="https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?sid=ec4dc1f3-1a4f-4d75-8e87-efbb3d2b2e90" rel="nofollow">https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?...</a><p>We started this company after struggling to find great tools to practice speaking Japanese and French. Having a tutor can be awesome, but there are downsides: they can be expensive (since you pay by the hour), difficult to schedule, and have a high upfront cost (finding a tutor you like often forces you to cycle through a few that you don’t).<p>We wanted something that would talk with us — realistically, in full conversations — and actually help us improve. So we built it ourselves. The app relies on a custom voice AI pipeline combining STT (speech-to-text), TTS (text-to-speech), LLMs, long term memory, interruptions, turn-taking, etc. Getting speech-to-text to work well for learners was one of the hardest parts — especially with accents, multi-lingual sentences, and noisy environments. We now combine Gemini Flash, Whisper, Scribe, and GPT-4o-transcribe to minimize errors and keep the conversation flowing.<p>We didn’t want to focus too much on gamification. In our experience, that leads to users performing well in the app, achieving long streaks and so on, without actually getting fluent in the language you're wanting to learn.<p>With ISSEN you instantly speak and immerse yourself in the language, which, while not easy, is a much more efficient way to learn.<p>We combine this with a word bank and SRS flashcards for new words learned in the AI voice chats, which allows very rapid improvement in both vocabulary and speaking skills. We also create custom curriculums for each student based on goals, interests, and preferences, and fully customizable settings like speed, turn taking, formality, etc.<p>App: <a href="https://issen.com">https://issen.com</a> (works on web, iOS, Android) Pricing: 20 min free trial, $20–29/month (depending on duration and specific geography)<p>We’d love your feedback — on the tech, the UX, or what you’d wish from a tool like this. Thanks!

Why is the Rust compiler so slow?

XSLT – Native, zero-config build system for the Web

Show HN: I'm an airline pilot – I built interactive graphs/globes of my flights

Hey HN!<p>Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history.<p>This globe is probably my favourite so far: <a href="https://jameshard.ing/pilot/globes/all" rel="nofollow">https://jameshard.ing/pilot/globes/all</a><p>If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

Show HN: I'm an airline pilot – I built interactive graphs/globes of my flights

Hey HN!<p>Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history.<p>This globe is probably my favourite so far: <a href="https://jameshard.ing/pilot/globes/all" rel="nofollow">https://jameshard.ing/pilot/globes/all</a><p>If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

Libxml2's "no security embargoes" policy

Introducing Gemma 3n

Puerto Rico's Solar Microgrids Beat Blackout

AlphaGenome: AI for better understanding the genome

AlphaGenome: AI for better understanding the genome

-2000 Lines of code (2004)

Define policy forbidding use of AI code generators

PlasticList – Plastic Levels in Foods

ChatGPT's enterprise success against Copilot fuels OpenAI/Microsoft rivalry

Thnickels

A new pyramid-like shape always lands the same side up

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