The best Hacker News stories from Show from the past day
Latest posts:
Show HN: Autism Simulator
Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum.<p>I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism".<p>I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those situations," then it’s worth it.<p>Appreciate everyone who’s tried it and shared thoughts.
Show HN: Autism Simulator
Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum.<p>I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism".<p>I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those situations," then it’s worth it.<p>Appreciate everyone who’s tried it and shared thoughts.
Show HN: Autism Simulator
Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum.<p>I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism".<p>I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those situations," then it’s worth it.<p>Appreciate everyone who’s tried it and shared thoughts.
Show HN: Simple WhatsApp API (Open Source)
Had a Lot of issues with existing APIs especially with Attachment support.
Hence built own Whatsapp API.<p>Currently only Send Messages
Show HN: Glide, an extensible, keyboard-focused web browser
Show HN: Glide, an extensible, keyboard-focused web browser
Show HN: Glide, an extensible, keyboard-focused web browser
Show HN: Glide, an extensible, keyboard-focused web browser
Show HN: Glide, an extensible, keyboard-focused web browser
Show HN: Peanut – A Modern Money App
Hi HN!
I’ve been frustrated with traditional payments for a while. Paypal has frozen my funds on two occasions; and in one of them the funds were never recoverable. When I’m not using PayPal, international bank transfers take days and charge me insane amounts.<p>Also, every country usually has their own payment app parallel to the banking system: Portugal, where i currently live, has MB WAY, Brazil has PIX, Argentina has Mercadopago, the US has Cashapp. None of these work with each other.<p>Money still feels like pre-dotcom era tech when it should feel like a whatsapp message: send instant, anywhere, and for free.<p>Me and my team have been building Peanut to make money feel like Whatsapp. Peanut is a payments app, like Cashapp, but it works in any country. On top of that, you do more than only instant Peanut to Peanut payments; Peanut works with Banks, Peanut works with apps like MercadoPago and Pix, and if they have none of that, Peanut also works with crypto.<p>We wanted to build Peanut the right way, and that’s why:<p>- We’re not published on any app store. Peanut is a Progressive Web App (<a href="https://en.wikipedia.org/wiki/Progressive_web_app" rel="nofollow">https://en.wikipedia.org/wiki/Progressive_web_app</a>) (of which I sadly see way too few !!). This way we don’t have to bow to the Apple/Google tech cabal and can rely on open standards.
- The core of peanut is decentralized & non-custodial. The only one that has control of the funds is the user; as it should be. Peanut is not like a traditional bank, where fraud, political instability, or a bank-run might pwn you. Your funds are always yours and no one else can touch them.
- Your funds are secured by passkey. This is much harder to crack or extract than a password or pin, and you won’t get pwned if your seed phrase gets leaked. We think it’s a much better approach for consumers.
- Trust is crucial; all the app code is open-source at <a href="https://github.com/peanutprotocol/peanut-ui/tree/peanut-wallet" rel="nofollow">https://github.com/peanutprotocol/peanut-ui/tree/peanut-wall...</a>
- The app is completely free; we only passthrough banking costs. The way we intend to make money is off of merchants in the future. We believe Visa and Mastercard take a way too big of a chunk of payments, and we can be competitive with them.<p>My personal favorite feature that we’ve built: generate a send link, drop it in a chat with the person you’re talking with, and let them receive it in whatever option they want (no questions asked!).<p>We’re still in Beta, so I hope you can forgive any tech hiccups. We’re also rolling out country support on a week-by-week basis; by the end of October we should have full EU, US & LATAM banking coverage. But I wanted to launch Show HN early, because I respect this community a lot and have always loved getting feedback from it (and often giving my own!).<p>Also, let me know your username and I’m happy to send you a few $ to play around with the app.
Show HN: A web version of Pips game (NYT domino game)
Hi everyone,<p>I’m an indie developer learning Next.js and a big fan of the NYT game Pips. Inspired by it, I built <a href="https://pipsgamer.com" rel="nofollow">https://pipsgamer.com</a> — a responsive web version of Pips with smooth gameplay on both desktop and mobile.<p>What makes this project different from NYT’s version is that you can play it infinitely under three difficulty levels: Easy / Medium / Hard.<p>This is the first time I’ve built a game. Along the way I ran into many difficulties: implementing the game logic, configuring the UI, matching layouts for small and large screens, etc. I spent many lonely nights and sometimes even doubted whether I could complete the whole project. After 24 days of persistent effort, the project is finally finished.<p>No signup required — just go and play. If you try it out I’d really appreciate your feedback: what you like, what bugs you see, what could be improved.<p>Thanks!
Show HN: A web version of Pips game (NYT domino game)
Hi everyone,<p>I’m an indie developer learning Next.js and a big fan of the NYT game Pips. Inspired by it, I built <a href="https://pipsgamer.com" rel="nofollow">https://pipsgamer.com</a> — a responsive web version of Pips with smooth gameplay on both desktop and mobile.<p>What makes this project different from NYT’s version is that you can play it infinitely under three difficulty levels: Easy / Medium / Hard.<p>This is the first time I’ve built a game. Along the way I ran into many difficulties: implementing the game logic, configuring the UI, matching layouts for small and large screens, etc. I spent many lonely nights and sometimes even doubted whether I could complete the whole project. After 24 days of persistent effort, the project is finally finished.<p>No signup required — just go and play. If you try it out I’d really appreciate your feedback: what you like, what bugs you see, what could be improved.<p>Thanks!
Show HN: WebRTC LAN Baby Monitor for iOS and iPadOS
Hey all,<p>Just wanted to show off this app I built, its a LAN based WebRTC baby monitor that connects any apple devices together over WIFI so you can turn an old iPad or iPhone into a baby monitor!<p>I got a bit sick of all the sketchy products that require you to buy another device and may or may not connect to Chinese servers and store all your information somewhere.<p>So I figured what if there were no servers and we could just use our existing devices!<p>I would love any feedback! You will need two apple devices to test it, but simulators do work.
Show HN: WebRTC LAN Baby Monitor for iOS and iPadOS
Hey all,<p>Just wanted to show off this app I built, its a LAN based WebRTC baby monitor that connects any apple devices together over WIFI so you can turn an old iPad or iPhone into a baby monitor!<p>I got a bit sick of all the sketchy products that require you to buy another device and may or may not connect to Chinese servers and store all your information somewhere.<p>So I figured what if there were no servers and we could just use our existing devices!<p>I would love any feedback! You will need two apple devices to test it, but simulators do work.
Show HN: Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility.
Links:<p>GitHub: <a href="https://github.com/currentspace/capn-rs" rel="nofollow">https://github.com/currentspace/capn-rs</a>
Crates: <a href="https://crates.io/crates/capnweb-server" rel="nofollow">https://crates.io/crates/capnweb-server</a>
API docs: <a href="https://docs.rs/capnweb-server" rel="nofollow">https://docs.rs/capnweb-server</a><p>What's working:<p>Wire compatibility verified via integration tests against TypeScript reference
Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3)
Complete IL (intermediate language) expression evaluator
Promise pipelining with dependency resolution
Comprehensive test coverage<p>The interesting design challenge was mapping Cap'n Web's record-replay .map() semantics to Rust's type system while maintaining ergonomic APIs. Cap'n Web records operations on placeholder values to build execution plans - in Rust this became a clean builder pattern with type-level guarantees.
Built this as an experiment with Claude Code for porting complex protocols. The AI handled mechanical translation well, but architectural decisions (especially around async/await patterns and lifetime management) required human judgment.
This is early days - I'd especially appreciate feedback on API ergonomics and any edge cases I might have missed. Also happy to discuss the protocol design or the AI-assisted development experience.<p>[1] <a href="https://news.ycombinator.com/item?id=45332883">https://news.ycombinator.com/item?id=45332883</a>
Show HN: Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility.
Links:<p>GitHub: <a href="https://github.com/currentspace/capn-rs" rel="nofollow">https://github.com/currentspace/capn-rs</a>
Crates: <a href="https://crates.io/crates/capnweb-server" rel="nofollow">https://crates.io/crates/capnweb-server</a>
API docs: <a href="https://docs.rs/capnweb-server" rel="nofollow">https://docs.rs/capnweb-server</a><p>What's working:<p>Wire compatibility verified via integration tests against TypeScript reference
Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3)
Complete IL (intermediate language) expression evaluator
Promise pipelining with dependency resolution
Comprehensive test coverage<p>The interesting design challenge was mapping Cap'n Web's record-replay .map() semantics to Rust's type system while maintaining ergonomic APIs. Cap'n Web records operations on placeholder values to build execution plans - in Rust this became a clean builder pattern with type-level guarantees.
Built this as an experiment with Claude Code for porting complex protocols. The AI handled mechanical translation well, but architectural decisions (especially around async/await patterns and lifetime management) required human judgment.
This is early days - I'd especially appreciate feedback on API ergonomics and any edge cases I might have missed. Also happy to discuss the protocol design or the AI-assisted development experience.<p>[1] <a href="https://news.ycombinator.com/item?id=45332883">https://news.ycombinator.com/item?id=45332883</a>
Show HN: Devbox – Containers for better dev environments
I've been frustrated with dependency hell and clutter on my VPS from dev, so I built Devbox: a lightweight, open-source CLI tool that spins up isolated development environments using Docker. Each project runs in its own container, but your code stays in simple flat folders on the host machine—no messing with volumes or sync issues. Environments are disposable, so you can nuke and recreate them without losing your work. Key features:
- Instant setup: `devbox init my-project` and you're in a fresh env with `devbox shell`.<p>- Configurable via JSON: Define packages, services, and more in a `devbox.json` file. Share it in your repo for reproducible setups—teammates just run `devbox up`.<p>- Docker-in-Docker by default: Build and run containers inside your env without extra config.<p>- Host-friendly: Edit code directly on your machine; the container handles the runtime.<p>- Templates for quick starts: Built-ins for Python, Node.js, Go, web dev, etc.<p>- Advanced options: Port mapping, env vars, resource limits, and even mounting your dotfiles.<p>It's FOSS (MIT license), Linux-focused (Debian/Ubuntu, or WSL2 on Windows), and super easy to install: `curl -fsSL <a href="https://devbox.ar0.eu/install.sh" rel="nofollow">https://devbox.ar0.eu/install.sh</a> | bash`.<p>Check out the launch page and docs at <a href="https://devbox.ar0.eu" rel="nofollow">https://devbox.ar0.eu</a>, or the repo at <a href="https://github.com/itzCozi/devbox" rel="nofollow">https://github.com/itzCozi/devbox</a>. I'd love some feedback, stars, or contributions to help grow this into a solid community tool!
Show HN: Devbox – Containers for better dev environments
I've been frustrated with dependency hell and clutter on my VPS from dev, so I built Devbox: a lightweight, open-source CLI tool that spins up isolated development environments using Docker. Each project runs in its own container, but your code stays in simple flat folders on the host machine—no messing with volumes or sync issues. Environments are disposable, so you can nuke and recreate them without losing your work. Key features:
- Instant setup: `devbox init my-project` and you're in a fresh env with `devbox shell`.<p>- Configurable via JSON: Define packages, services, and more in a `devbox.json` file. Share it in your repo for reproducible setups—teammates just run `devbox up`.<p>- Docker-in-Docker by default: Build and run containers inside your env without extra config.<p>- Host-friendly: Edit code directly on your machine; the container handles the runtime.<p>- Templates for quick starts: Built-ins for Python, Node.js, Go, web dev, etc.<p>- Advanced options: Port mapping, env vars, resource limits, and even mounting your dotfiles.<p>It's FOSS (MIT license), Linux-focused (Debian/Ubuntu, or WSL2 on Windows), and super easy to install: `curl -fsSL <a href="https://devbox.ar0.eu/install.sh" rel="nofollow">https://devbox.ar0.eu/install.sh</a> | bash`.<p>Check out the launch page and docs at <a href="https://devbox.ar0.eu" rel="nofollow">https://devbox.ar0.eu</a>, or the repo at <a href="https://github.com/itzCozi/devbox" rel="nofollow">https://github.com/itzCozi/devbox</a>. I'd love some feedback, stars, or contributions to help grow this into a solid community tool!
Show HN: Devbox – Containers for better dev environments
I've been frustrated with dependency hell and clutter on my VPS from dev, so I built Devbox: a lightweight, open-source CLI tool that spins up isolated development environments using Docker. Each project runs in its own container, but your code stays in simple flat folders on the host machine—no messing with volumes or sync issues. Environments are disposable, so you can nuke and recreate them without losing your work. Key features:
- Instant setup: `devbox init my-project` and you're in a fresh env with `devbox shell`.<p>- Configurable via JSON: Define packages, services, and more in a `devbox.json` file. Share it in your repo for reproducible setups—teammates just run `devbox up`.<p>- Docker-in-Docker by default: Build and run containers inside your env without extra config.<p>- Host-friendly: Edit code directly on your machine; the container handles the runtime.<p>- Templates for quick starts: Built-ins for Python, Node.js, Go, web dev, etc.<p>- Advanced options: Port mapping, env vars, resource limits, and even mounting your dotfiles.<p>It's FOSS (MIT license), Linux-focused (Debian/Ubuntu, or WSL2 on Windows), and super easy to install: `curl -fsSL <a href="https://devbox.ar0.eu/install.sh" rel="nofollow">https://devbox.ar0.eu/install.sh</a> | bash`.<p>Check out the launch page and docs at <a href="https://devbox.ar0.eu" rel="nofollow">https://devbox.ar0.eu</a>, or the repo at <a href="https://github.com/itzCozi/devbox" rel="nofollow">https://github.com/itzCozi/devbox</a>. I'd love some feedback, stars, or contributions to help grow this into a solid community tool!
Show HN: Sculptor – A UI for Claude Code
Hey, I'm Josh, cofounder of Imbue. We built Sculptor because we wanted a great UI for parallel coding agents.<p>We love Claude Code, but wanted to solve some of the problems that come from running multiple agents in parallel (ex: merge conflicts with multiple agents, reinstalling dependencies with git worktrees, Claude Code could deleting your home directory, etc).<p>Sculptor is a desktop app that lets you safely run Claude Code agents by putting them in separate docker containers. This lets you use Claude without having to compromise on security or deal with annoying tool permission prompts. Then you can just tell Claude to keep running the code until it actually works.<p>To help you easily work with containerized agents, we created “Pairing Mode”: bidirectionally sync the agent’s code into your IDE and test/edit together in real time. You can also simply pull and push manually if you want.<p>We have some more cool features planned on our roadmap that are enabled by this approach, like the ability to “fork” conversations (and the entire state of the container), or roll back to a previous state.<p>It’s still very early, but we would love your feedback.<p>Sculptor itself is free to use, so please try it out and let us know what you think!