The best Hacker News stories from Show from the past day
Latest posts:
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!
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!
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!
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!
Show HN: Free developer-first OneNote alternative
Hey Everyone, been working on a note-taking app called janta (Just Another Note Taking App) the past few months.<p>You can try it out at app.janta.dev (you will be redirected to app.janta.dev/canvas/temporary, which is the locally-stored whiteboard you can access)<p>I felt limited with OneNote, Excalidraw, and other infinite-canvas style apps, so I built an alternative. You have access to code-editors, Desmos graphs, and rich text editors (SlateJS). This is because the canvas is designed in a way that allows web components to exist on the same layer as pen-strokes, so you can annotate code, circle points-of-inflection, and programmatically generate graphs using matplotlib.pyplot!<p>This is a beta release, and feedback would be awesome!
Show HN: Automatically set real iOS alarms for calendar events
I kept missing appointments and meetings because calendar notifications are too easy to ignore. Alarms, on the other hand, always break through silent mode/DND and force you to acknowledge them — but setting them manually every day was another chore.<p>With iOS 26’s new AlarmKit, I built Beacon: it automatically syncs with your Apple Calendar and converts important events into real iOS alarms. You can define simple rules (like “only events with ‘Interview’ in the title” or “meetings with 3+ attendees”), and Beacon sets the alarms for you — no extra work required.<p>Would love feedback!
Show HN: The Unite real time operating system
Show HN: The Unite real time operating system
Show HN: The Unite real time operating system
Show HN: The Unite real time operating system
Show HN: Every single torrent is on this website