Companies tracked by Rails Radar

Hiring signals with observed stack evidence. Showing 529–576 of 1439 · page 12 of 30.

Helping agents break out of their sandboxes in a monitorable way 0 open listings

discussion=https://news.ycombinator.com/item?id=49734386, title=Show HN: Helping agents break out of their sandboxes in a monitorable way
Herdr Agents Fleet on your phone with TermRover 0 open listings

discussion=https://news.ycombinator.com/item?id=49636342, title=Show HN: Herdr Agents Fleet on your phone with TermRover
Hermes 0 open listings

discussion=https://news.ycombinator.com/item?id=49659605, title=Show HN: Hermes – RyanAir price API with historical data
Hightouch Hiring 1 open listing

url=https://weworkremotely.com/remote-jobs/hightouch-application-security-lead, title=Application Security Lead
Hindsight 0 open listings

discussion=https://news.ycombinator.com/item?id=49680318, title=Show HN: Hindsight – Explore how YouTube channels discuss issues over time
HolaOS––An Opensourced workspace that alternative to Claude 0 open listings

discussion=https://news.ycombinator.com/item?id=49659974, title=Show HN: HolaOS––An Opensourced workspace that alternative to Claude, Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.
Homebutler 0 open listings

discussion=https://news.ycombinator.com/item?id=49611395, title=Show HN: Homebutler – reports what changed on your server, not what's running
Hometowns 0 open listings

discussion=https://news.ycombinator.com/item?id=49733107, title=Show HN: Hometowns – Map the area codes in your contacts list, I've always been interested in area codes because we all tend to keep our first phone number and it tells a little bit of your life story. I probably only know 5 area codes that really excite me because I'm familiar with the area, but I've wondered how many others are from areas I'm familiar with, but I'm just not familiar with the area code. So in full transparency, this project came together because I finally threw an LLM at it. I've had this project written down for probably 10 years, and the initial commit to this repo was 5 years ago. It parses your contacts, and shows you a map of where they are from (North America only). You can also choose to share it with someone else and see the overlap of your maps which I found really fascinating too. I recognize it's a big ask to enter names and phone numbers into a random site, but this is published to github pages and the source code is right there. It is all fully client-side, no data collection, no network requests or anything. You can run it in airplane mode / disable networking on the tab once it's loaded too. Hopefully others find it fun too!
HonestSky, a free iOS weather app without ads or subscriptions 0 open listings

discussion=https://news.ycombinator.com/item?id=49719113, title=Show HN: HonestSky, a free iOS weather app without ads or subscriptions, Hi HN, I’m Sean. I built HonestSky because I was tired of weather apps that were slow to load, covered in ads some to the point of being unusable and then putting longer forecasts behind paywalls. I’ve been using it myself for over a year, and today I finally (finally finally) released it on the iOS App Store. It includes hourly and extended forecasts, radar, severe weather alerts, and air quality. All features are free, with no ads or account required. Privacy was another reason I wanted to build it. Reading about the location-data lawsuits involving weather apps made me uncomfortable with how a straightforward weather lookup could turn into something else. This is something I didn’t realize until after I was looking for how to get the word out. You can save locations and opt into push notifications for weather alerts. It uses that information only to provide your forecasts and alerts. I don’t sell your data or use it for anything else. The weather data comes from providers including Open-Meteo, RainViewer, and the National Weather Service. This started as something I wanted for myself. After using it for a year, I figured other people might find it useful too. Plus it costs a few bucks to host and process so I put a donation bucket out there.. although Apple made me take any sort of asking for donations out of it so I haven’t figured that part out yet. I’d appreciate feedback on the interface, the forecasts and alerts, and anything that would stop you from using it as your everyday weather app. Happy to discuss the data sources and privacy decisions too. Cheers! Sean
Hop 0 open listings

discussion=https://news.ycombinator.com/item?id=49684537, title=Show HN: Hop – project sessions beyond tmux, hop started from a frustration: every project I work on accumulates browser tabs, while tmux sessions can only contain terminals. This really started getting out of hand once coding agents took hold, as more things are now going on at the same time. On top of that, I've started doing more work in sandboxed environments, and tmux isn't great at managing sessions across different environments - it wants a tmux server everywhere. So hop moves the project session up to the window-manager level: terminals and GUI apps live together, while shells and the editor can run locally, in a container, or over SSH.
Hopera, a free musical soothing rhythmic game 0 open listings

discussion=https://news.ycombinator.com/item?id=49660111, title=Show HN: Hopera, a free musical soothing rhythmic game, I built this small musical game in Lua, with the LÖVE 2d engine. I initially tried building it in Unity but it was more complicated than expected. I use LÖVE because it allowed to draw every pixel as I wanted. It's free to play on iOS, Android, and even the web.
Hopya 0 open listings

discussion=https://news.ycombinator.com/item?id=49656775, title=Show HN: Hopya – Open-Source Project Management Platform
Hordev 0 open listings

discussion=https://news.ycombinator.com/item?id=49630355, title=Show HN: Hordev – Claude Code skills that build instead of asking questions
Hotfix Jobs Hiring 1 open listing

url=https://x.com/hotfixjobs/status/2098427476061868173, title=PrizePicks is hiring an engineer to build the social systems on their daily fantasy app. $175,000-$185,000 base, fully remote. Ruby on Rails, Go, PostgreSQL., matching_tags=Ruby,Rails, description=...ocial systems on their daily fantasy app. $175,000-$185,000 base, fully remote. Ruby on Rails, Go, PostgreSQL., author=@hotfixjobs, author_name=Hotfix Jobs
Housecall Pro Hiring 1 open listing

url=https://justjoin.it/job-offer/housecall-pro-staff-software-engineer-i-pod-architecture-team--warszawa-ruby, title=Staff Software Engineer I (Pod Architecture Team), research=Wymagania: senior level Ruby on Rails; ewolucja dużego monolitu Ruby (service extraction, sharding, architektura pod/cell-based); system design i architektura rozproszona; PostgreSQL/SQL; REST API; CI/CD; mikrousługi.
How LLMs work, explained through music, football or cricket analogies 0 open listings

discussion=https://news.ycombinator.com/item?id=49681313, title=Show HN: How LLMs work, explained through music, football or cricket analogies
How Stale Is Your AI? Release age and training cutoff for 20 models 0 open listings

discussion=https://news.ycombinator.com/item?id=49726343, title=Show HN: How Stale Is Your AI? Release age and training cutoff for 20 models
How do you know your LLM giving accurate info? 0 open listings

discussion=https://news.ycombinator.com/item?id=49624134, title=Show HN: How do you know your LLM giving accurate info?, I spend a good amount of time chasing the LLM for evidence that its answer is actually accurate. To be honest, I can usually get there, but it works great for fresh work and gets messy on months-old work. And it's not just me; a lot of people have raised the same thing. So for the last 6 months I've been trying to fix it. Today I can say it's working for me — it flags me in advance. Obviously not perfect yet, and that's where I need help: I need people to test it and tell me what else needs fixing. PS: This isn't a memory layer; it flags stale answers before you act on them. Give it a try, and if you think I'm solving a real problem, please drop a star.
HungryGPU 0 open listings

discussion=https://news.ycombinator.com/item?id=49664363, title=Show HN: HungryGPU – Track local AI models, patches and recipes by hardware
Huntress Hiring 3 open listings

url=https://jobs.rubyonrails.org/jobs/40933-staff-software-engineer-ispm-platform-huntress, title=Staff Software Engineer - ISPM Platform , description=...nsibilities: Design, develop, and maintain end-to-end solutions using primarily Ruby on Rails. Implement efficient data pipelines to extract relevant information from massive amounts of noise  Collaborate with security researchers to u...
HushBox 0 open listings

discussion=https://news.ycombinator.com/item?id=49639305, title=Show HN: HushBox – Offline encrypted photo/video vault for iOS
Hushstat 0 open listings

discussion=https://news.ycombinator.com/item?id=49624181, title=Show HN: Hushstat – Cookie-free web analytics with heatmaps, Hi HN, I built Hushstat to combine traffic analytics with a closer look at what visitors do on a website. It includes traffic sources, funnels, heatmaps, and signals such as rage clicks. The tracker does not use tracking cookies. The stack is Go, Postgres, and React. There is a 20-day free trial with no card required. I would appreciate feedback on the dashboard and installation experience. What would you need before using it on your own website?
Huzzle Hiring 2 open listings

url=https://weworkremotely.com/remote-jobs/huzzle-full-stack-developer-python-react-ai-1, title=Full-Stack Developer (Python, React, AI)
Hybrid Nav2 and PPO RL for indoor Lidar-only robot navigation 0 open listings

discussion=https://news.ycombinator.com/item?id=49606818, title=Show HN: Hybrid Nav2 and PPO RL for indoor Lidar-only robot navigation
Hybrid-voice-agent 0 open listings

discussion=https://news.ycombinator.com/item?id=49633089, title=Show HN: Hybrid-voice-agent – on-device and cloud fallback voice agent for iOS
Hydra 0 open listings

discussion=https://news.ycombinator.com/item?id=49634934, title=Show HN: Hydra – Open-source agentic terminal with a PTY daemon
Hyper Core AB 0 open listings

url=https://arbetsformedlingen.se/platsbanken/annonser/31471452, title=Software Engineer, description=...end development, and master one or more languages such as C++, C#, PHP, Python, Ruby, Golang, Elixir, Java, and Javascript. If you have knowledge of technologies like NoSQL, Docker, Kubernetes we are even more interested. You will be involv...
I Built a CLI for Proton Mail, Drive, Calendar, Pass and Contacts 0 open listings

discussion=https://news.ycombinator.com/item?id=49683369, title=Show HN: I Built a CLI for Proton Mail, Drive, Calendar, Pass and Contacts, I made a command line tool for Proton. It covers Mail, Drive, Calendar, Pass and Contacts. It is one static binary for Linux, macOS and Windows. Proton doesn't have a CLI for all their web interfaces. There is one for Drive and one for Pass, but the other ones are not really there. There's no Mail CLI, Contacts or other CLIs. I wanted to have everything in one. It does logins the way the Proton apps do, with SRP. It decrypts and encrypts on your machine with Proton's own Go libraries, go-srp and gopenpgp. Your password never leaves the machine. It talks to the same API as the Proton web apps. There is no bridge and no daemon. It runs one command and exits. Some things it can do: proton mail messages list --unread proton mail messages get "Invoice #2291" proton drive items upload ./report.pdf /Documents proton calendar events list proton pass items totp github.com Every command has the same shape: proton . Every command can print JSON. Every command that changes something takes --dry-run. This CLI does things the web interfaces do, in those five apps. But some things need a browser and are not here: importing from Gmail, adding a Zoom link, registering a security key and so on. VPN, Wallet, Docs, Meet, Lumo and Authenticator are not covered. Most of the code was written with LLMs as you can see. But I have an extensive test suite: 397 live tests against three real Proton accounts and a record of the 243 API endpoints they reach. Install with curl, Homebrew, winget, APT, AUR, Nix, npm or take a binary from the releases page. Feedback is more than welcome :)
I benchmarked Seedance 2.5's 30s one-take video against 3 models 0 open listings

discussion=https://news.ycombinator.com/item?id=49624175, title=Show HN: I benchmarked Seedance 2.5's 30s one-take video against 3 models
I build unprompted speaking app to improve speaking 0 open listings

discussion=https://news.ycombinator.com/item?id=49741579, title=Show HN: I build unprompted speaking app to improve speaking, saw a similiar idea before and thinking why not i make it more helpful to the user? this also inline in my goals to remove my personal bottleneck which is bad speaking skill but decent in other it also have technical topic for interviw feel free to check it out and tell me what you think!
I built Founder.best and its products now show up in AI recommendations 0 open listings

discussion=https://news.ycombinator.com/item?id=49648304, title=Show HN: I built Founder.best and its products now show up in AI recommendations
I built IndieRoadmaps, a simple roadmap builder for indie hackers 0 open listings

discussion=https://news.ycombinator.com/item?id=49724374, title=Show HN: I built IndieRoadmaps, a simple roadmap builder for indie hackers, I built a place where you can create your public roadmap and let your community vote on its features. When you ship something, everyone who voted gets an email notification automatically. It also works before you've launched anything, good for validating ideas without writing a line of code. Free to use, roadmap is live in 1 minute.
I built Otis, a minimal AI agent that runs local models out of the box 0 open listings

discussion=https://news.ycombinator.com/item?id=49696084, title=Show HN: I built Otis, a minimal AI agent that runs local models out of the box, Hi everyone, Been working on Otis, an open-source ai agent that gives you one minimal experience across local and hosted open-weight models, privacy-focused by design. On setup it recommends a local model based on the hardware Otis is running on, downloads it and runs it through llama.cpp for you. Ollama, LM Studio and Nvidia PAIR are supported too. Excited for everyone to try it and all feedback is welcome!
I built ThreadShelf to reuse hard-to-export AI chats like OpenRouter 0 open listings

discussion=https://news.ycombinator.com/item?id=49683327, title=Show HN: I built ThreadShelf to reuse hard-to-export AI chats like OpenRouter, My AI chats were split between OpenRouter, AI Studio and LM Studio. There was no good way to search or reuse them and OpenRouter had no proper bulk export, so I built one.
I built a Cap Table app for myself, now you can use it too for free 0 open listings

discussion=https://news.ycombinator.com/item?id=49645912, title=Show HN: I built a Cap Table app for myself, now you can use it too for free
I built a Mac app to make technical PDF textbooks easier to study 0 open listings

discussion=https://news.ycombinator.com/item?id=49736856, title=Show HN: I built a Mac app to make technical PDF textbooks easier to study, I've always been a lifelong learner and have always tried to get through digital textbooks. Anyone who's used pdf textbooks know how much of a love/hate relationship it is. There are so many foundational textbooks published online for free now such as OSTEP, Modern Robotics, and Applied Linear Algebra just to name a few. - https://pages.cs.wisc.edu/~remzi/OSTEP/ - https://hades.mech.northwestern.edu/index.php/Modern_Robotic... - https://web.stanford.edu/~boyd/vmls/ I've always preferred reading textbooks physically and writing inside them, but now with LLMs, it's nice to be able to just paste in passages to ChatGPT and ask for clarification. I've tried so many different types of digital note taking like Notability, Goodnotes, Margin Note, etc but none of them really made it easy for me to dive into dense material. I find myself getting distracted trying to take notes and forgetting what I just read. Out of my frustration, I decided to create my own tool and have been using it to get through my own personal studies. I built it around these core principles. - Technical textbooks are dense. I need to be able to quickly jot down a thought without distracting myself - I need to be able to pick up from where I left off quickly when I have quick bursts of inspiration to study - I need to be able to take scattered notes, and synthesize them into a cohesive subtopics so I can build on top of this knowledge as I progress in the textbook - Using the textbook needs to be fluid. It must be a good PDF reader first and foremost. I can safely say that what I've built is by far my favorite way to study any deep material. I'm able to take things line by line to truly understand how the author has built up their reasoning. This might be a biased view but firmly believe this tool could help anyone who have always tried learning new material. There are so many good free resources out there now, especially in AI, Math, Robotics. It's never been a better time to learn and I hope Margin helps anyone who's attempted to get through dense material as much as it has helped me.
I built a URL shortener from scratch 0 open listings

discussion=https://news.ycombinator.com/item?id=49698049, title=Show HN: I built a URL shortener from scratch, I just built a new url shortener service for fun. I want to eventually become as performant as bit.ly and others. Please take a look and have fun with it. http://ec2-52-71-17-28.compute-1.amazonaws.com/
I built a browser-native agent for automating job application forms 0 open listings

discussion=https://news.ycombinator.com/item?id=49702241, title=Show HN: I built a browser-native agent for automating job application forms
I built a day-by-day timeline of the AI boom (2017–2026, 437 events) 0 open listings

discussion=https://news.ycombinator.com/item?id=49683798, title=Show HN: I built a day-by-day timeline of the AI boom (2017–2026, 437 events)
I built a digital wrap tool for Tesla owners 0 open listings

discussion=https://news.ycombinator.com/item?id=49724174, title=Show HN: I built a digital wrap tool for Tesla owners, A while ago, I showed some friends a Tesla digital wrap I'd made in Photoshop. These wraps change how the car model looks on the Tesla screen and in the app. They asked me how I'd made it, so I shared a tutorial with them. But they weren't familiar with Photoshop and eventually gave up. I also saw other Tesla owners online running into the same problem. So I built Tesla Wrap Studio using the official templates from Tesla's GitHub repository. It has a gallery of ready-made wraps you can download for free, plus an online editor for creating your own designs. You can work with your own images and text, see the results in 3D as you edit, or use AI to generate a design.
I built a directory for discovering startups shared on X 0 open listings

discussion=https://news.ycombinator.com/item?id=49647487, title=Show HN: I built a directory for discovering startups shared on X, I created StartupsonX to help people easily find startups that entrepreneurs are creating and discussing on X. Visitors of the website can browse and search startups based on categories like AI, developer tools, SaaS, design, fintech, marketing, and productivity. They can also submit their startups on the website. As you can see, it’s quite simple, just how I wanted it, although I am open to suggestions :D I created it because finding useful startups on X is sometimes painful, unless someones post went viral, you probably won't see it, and there was a need for a simple platform where users can check out some cool startups without scrolling X. I’d love to hear your thoughts about the usefulness of this platform and improvements to be made.
I built a filterable list of beginner whittling projects 0 open listings

discussion=https://news.ycombinator.com/item?id=49613776, title=Show HN: I built a filterable list of beginner whittling projects
I built a hand-modeled 3D Windows 98 portfolio with Three.js 0 open listings

discussion=https://news.ycombinator.com/item?id=49663429, title=Show HN: I built a hand-modeled 3D Windows 98 portfolio with Three.js
I built a new version of my fun spatial 3D online meeting app 0 open listings

discussion=https://news.ycombinator.com/item?id=49740047, title=Show HN: I built a new version of my fun spatial 3D online meeting app, Hi HN! flat.social is a fun spatial online meeting app for remote teams and communities. It's largely built like a web multiplayer game, and the 3D virtual spaces are highly customisable with elements and activities (I recently added surfing!). Live demo to try it out: https://app.flat.social/f/demo-flat Here's a quick demo video: https://www.youtube.com/watch?v=GeinBNqL23s It's a solo, bootstrapped project built with Three.js, LiveKit and Rapier for physics. I built the first version during the pandemic and posted it here back then: https://news.ycombinator.com/item?id=31833415 I had a couple of months off this year, so I locked myself in an (almost) jungle house in Brazil and rebuilt it into what I've always wanted it to be. Would love to hear what you think!
I built a place to hang out while waiting for your AI to respond 0 open listings

discussion=https://news.ycombinator.com/item?id=49643690, title=Show HN: I built a place to hang out while waiting for your AI to respond, It's a group chat with mini games that only unlocks when it detects you are waiting for Claude or ChatGPT to respond. The idea came to me after a lot of waiting around on my last build (where I would just doomscroll and wanted something better).
I built a router for agent tools 0 open listings

discussion=https://news.ycombinator.com/item?id=49730644, title=Show HN: I built a router for agent tools
I built a simple couples app that explores a new way of connecting them 0 open listings

discussion=https://news.ycombinator.com/item?id=49740575, title=Show HN: I built a simple couples app that explores a new way of connecting them, Hello HN. I built my first serious mobile (OS - Android) application, Lune. Before I tell you about it, I wanna tell you the backstory in short: One day I woke up from a bad dream and had an instant anxiety attack (I don't get those easily). I needed to call someone I love in that moment, but it wasn't practical given the time of the day. I just needed a way to feel that person's presence. In that moment, the idea behind Lune was born (currently I've pivoted from the original idea a bit though :). The thing is, as we get busier with our lives, it becomes increasingly difficult to stay meaningfully connected with our partner, texts can sit unread for hours, calls can become impractical for all kinds of reasons. If we feel something, how do we express it without starting a call or a chat conversation? How do we express a feeling in a way that stays with our partner, without demanding a reply? So I thought what if I could whisper my subtle feelings, so that my partner doesn't have to a reply and feel that whisper whenever they got the time. Before I list the features and explain why I picked them, I want to explain the name, Lune: Lune means Moon in French. No matter where you're from in this world, you've certainly felt the calm, ambient presence of a glowing moon on a dark night. It gives us a sense of belonging and closeness. In Lune, your partner is your moon. I've tried to recreate that same ambient feeling inside the app (I am constantly working on making it more and more beautiful, calm and ambient), so you can feel your partner's presence in the most beautiful way. Features: 1. Widget: A simple widget that shows your partner's presence, always. 2. Whisper: a very short text. Send one and it appears directly on the widget, staying there until the next one is sent. 3. Status: what your partner is up to (e.g. commuting, studying). Seven defaults, but you can create your own. 4. Mood: what your partner is feeling. Same as status: seven defaults, but you can create as many as you want. 5. Battery level: tells a lot about a person's well-being when combined with other context, like time of day or last active. 6. Landscapes Scenes: Well technically it's not a 'feature', but more of a characteristic of the app. Lune has a set of beautiful, ambient landscapes/scenes where you and your partner can spend some time together, exchanging whispers. This serves more to the feel of the app than to the utility. (Note: Currently there are 3 scenes, I'm adding more one by one) 7. And, of course, a beautiful moon. I'd like to hear your thoughts on the approach I'm taking to connect two people in love. And also the app's design is the second most important aspect for Lune after the concept itself, so share your thoughts on that too, I'm a novice in design, but taking help from Claude Design and trying to make Lune's home-screen as beautiful as possible :) Play Store Link: https://play.google.com/store/apps/details?id=com.fusionfroz... One thing: HN guide said "Please make it easy for users to try your thing out", but I've only published on Play Store and due to its architecture it requires to sign up and connect with your partner in order to experience the core features and the design. So, if that seem too much work or you are on iOS, can you just share your thoughts on the concept itself, from the landing page ( https://luneapp.in ). Thank you so much!
I built a tiny camera that knows where it is 0 open listings

discussion=https://news.ycombinator.com/item?id=49712254, title=Show HN: I built a tiny camera that knows where it is