Companies tracked by Rails Radar

Hiring signals with observed stack evidence. Showing 817–864 of 1479 · page 18 of 31.

MinMAX Sort 0 open listings

discussion=https://news.ycombinator.com/item?id=49722599, title=Show HN: MinMAX Sort – A Stable Bidirectional Selection Sort Family Algorithm, Repository: https://github.com/tsuJack-Devs/minMAX-Sorting-Algorithm/tre... I made a sorting algorithm last year out of curiosity and hobby not knowing that this was actually a selection sort variant. It still has outer and inner loop but, half of the operations than the traditional selection sort or O(n^2) sorting algorithm variants. Making outer loop n/2 smaller and inner loop is (n x n)/2 smaller as well. This is well tested with a lot of number arrangements like cliff, spike, reverse, duplicates, and any possible chaotic array of numbers. Kinda crazy to promoting an improved selection sort algorithm but yeah, made it with passion of CS. :D
Minimal Static Website Hosting Tool 0 open listings

discussion=https://news.ycombinator.com/item?id=49662930, title=Show HN: Minimal Static Website Hosting Tool, I built this because I self host a lot of stuff and wanted to simplify tossing up a simple static site with no backend, no NGINX/Caddy/Traffik configs, instantly deploy with a single file copy. Powered by Golang's built-in reverse proxy package. Another awesome freebie is this is built on top of [Pocketbase]( https://pocketbase.io/ ), so the whole app is API driven for free. This gives you some AI integration points off the bat. Great for whipping up demos to pitch to clients, or quick and dirty temporary static sites to share with friends, family or coworkers.
Mirantis Hiring 1 open listing

url=https://remoteOK.com/remote-jobs/remote-software-engineer-mirantis-1137387, title=Software Engineer
Missive Hiring 1 open listing

url=https://jobs.rubyonrails.org/jobs/39262-senior-backend-developer-missive, title=Senior Backend Developer, description=... Our stack We keep things simple and that doesn’t mean boring. Our backend is a Rails monolith, Postgres, plus a few tiny services in Ruby, Node or Bun. Must-have “hard skills” Ruby proficiency Write self-documenting and maintainable code, ...
Mitre Media Hiring 1 open listing

url=https://remotive.com/remote-jobs/software-development/tech-lead-full-stack-rails-engineer-2069746, title=Tech Lead Full-Stack Rails Engineer, matching_tags=ruby/rails, description=...ration: none; vertical-align: baseline; white-space: pre-wrap;">As a Full-Stack Rails Tech Lead, you’ll architect and implement LLM-powered web applications within our microservices-based Rails 8 platform. Reporting directly to our CTO, you...
Mitti Hiring 1 open listing
Mnemiq 0 open listings

discussion=https://news.ycombinator.com/item?id=49626513, title=Show HN: Mnemiq – Open-source text-to-SQL tuned to your own database
Mockfreeli 0 open listings

discussion=https://news.ycombinator.com/item?id=49734675, title=Show HN: Mockfreeli – paste a YouTube link, get songs that sound like it
Model meets Reality: Model and test your understanding 0 open listings

discussion=https://news.ycombinator.com/item?id=49635956, title=Show HN: Model meets Reality: Model and test your understanding
Model pricing board for DeepSeek Harness: 7k models, cheapest route 0 open listings

discussion=https://news.ycombinator.com/item?id=49644625, title=Show HN: Model pricing board for DeepSeek Harness: 7k models, cheapest route
Modern RSS reader with social capabilities based on AT Proto 0 open listings

discussion=https://news.ycombinator.com/item?id=49724533, title=Show HN: Modern RSS reader with social capabilities based on AT Proto, Hey HN! The web is a bit broken and looking at social medias like X makes me a bit depressed. I feel like the original content that we had before on a multitude of website has been replaced by ton of click-bait content that just want impressions and reactions. I would like us to go back to simpler times, where everyone had their publishing space (their website, or an hosted solution) and everyone could subscribe to it in their own software and do what they want with their feed. I still think that social is important, like sharing, because afterall it's what made social networks interesting in the first place, but it should happen outside of where the content is. That's why I wanted to build an RSS reader that is respectful of this principle of federation: no in-app reader, just RSS subscriptions. And I've added social capabilities based on the AT Protocol, like sharing / liking and following people. The project was coded with AI, but it's my convictions that I've put it in. It's self-hostable and I hope that more and more people will be convinced to publish on their own website instead of X / Bluesky.
MoneyMap 0 open listings

discussion=https://news.ycombinator.com/item?id=49658751, title=Show HN: MoneyMap – find the first financial risk in a household
Monterail 1 open listing

url=https://theprotocol.it/szczegoly/praca/senior-ruby-on-rails-and-react-developer-warszawa,oferta,78b50000-17ad-320c-d9f9-08de916a6b47, title=Senior Ruby on Rails and React Developer, research=Wymagania: 8+ lat doświadczenia w developmentcie; deep, senior-level ekspertyza Ruby on Rails i React; profil seniorski end-to-end (widoczny fragment wymagań w wynikach wyszukiwania).
Moral.games, a 1v1 ethics game with an AI judge 0 open listings

discussion=https://news.ycombinator.com/item?id=49628812, title=Show HN: Moral.games, a 1v1 ethics game with an AI judge
MorphMove 0 open listings

discussion=https://news.ycombinator.com/item?id=49643204, title=Show HN: MorphMove – inspired by fast chess and NYT Games, Hi HN, I’ve built MorphMove, a perfect-information game with only 4 rules with considerably more depth than it may seem. If you have feedback, I'd love to hear it. I’m especially interested in knowing if the game is clear for everyone, and the maximum MorphMove rating reached by chess players. I’m available to answer any questions anyone might have.
Most Penalized HN Stories 0 open listings

discussion=https://news.ycombinator.com/item?id=49678711, title=Show HN: Most Penalized HN Stories, This page shows which stories have the heaviest penalty applied to their Hacker News rank -- stories that rank lower than they should given their raw HN ranking formula.
Mu 0 open listings

discussion=https://news.ycombinator.com/item?id=49608465, title=Show HN: Mu – a mouse-driven terminal code editor written in terrible Rust
MultiMatte, a Promptable Image Background Removal Model 0 open listings

discussion=https://news.ycombinator.com/item?id=49645803, title=Show HN: MultiMatte, a Promptable Image Background Removal Model, Hey HN, I'm Shreyash from Feyn. We help companies build custom models from their data. Today we're releasing MultiMatte, a background removal model you can aim with words. Name an object in your image. MultiMatte keeps just that thing, and removes everything else. Try it out on your images: https://usefeyn.com/multimatte/ . Demo video: https://youtu.be/XZ5BJWAkOjs MultiMatte is open source. Build with it using our NoBg library https://github.com/feyninc/nobg . Model card here: https://hf.co/feyninc/multimatte MultiMatte is the second iteration of our background removal models. The first was FeyNoBg, which we released here https://news.ycombinator.com/item?id=49072462 . The big upgrade is promptability. Most models keep all foreground elements when cutting the background. MultiMatte lets you prompt the exact objects you want to keep and remove everything else. For example, If you have an image with a dog and a bowl, you can ask MultiMatte to keep just the dog. MultiMatte is built on Meta's SAM 3, a concept-promptable detector that already understands phrases. Our biggest change was in masking. Instead of binary masks that classify each pixel as being inside or outside an object, MultiMatte uses alpha mattes that assign an opacity value to each pixel, with respect to an object. This allows us to better represent hair, fur, motion blur, and other kinds of fuzzy boundaries. Across all our measured benchmarks, MultiMatte shows a step improvement over SAM 3. On DIS5K, S-measure rises from 0.674 to 0.908 (a 34.6% relative gain), and on DUT-OMRON from 0.792 to 0.901 (13.7%). Our blog covers more of the training details and results https://usefeyn.com/blog/multimatte . Happy to answer any questions!
Multimeter 0 open listings

discussion=https://news.ycombinator.com/item?id=49711744, title=Show HN: Multimeter – Git-native REST client and API tests in VS Code
Multiplayer Mode for AI Agents 0 open listings

discussion=https://news.ycombinator.com/item?id=49745627, title=Show HN: Multiplayer Mode for AI Agents, I built Tincan for my agents across different harnesses (Claude, Codex, Hermes) to coordinate work with each other in real time. Tincan lets agents create shared rooms, exchange messages and files, and work together in real time. It also works with AI assistants - my assistant on Instinct is already talking to a friend’s on Muse. Messages and files are end-to-end encrypted, so Tincan can't read what your agents write.
Multistack, a TUI environment for parallel coding agents 0 open listings

discussion=https://news.ycombinator.com/item?id=49610980, title=Show HN: Multistack, a TUI environment for parallel coding agents
Mushrooms 0 open listings

discussion=https://news.ycombinator.com/item?id=49628886, title=Show HN: Mushrooms – A personal MCP server for 2,500 apps, so your AI can act
Music Generation Backed by Algebra 0 open listings

discussion=https://news.ycombinator.com/item?id=49675108, title=Show HN: Music Generation Backed by Algebra
Music visualizer that knows the drop is coming (iOS 27 on-device) 0 open listings

discussion=https://news.ycombinator.com/item?id=49696279, title=Show HN: Music visualizer that knows the drop is coming (iOS 27 on-device)
Musslop 0 open listings

discussion=https://news.ycombinator.com/item?id=49723554, title=Show HN: Musslop – turn any track into adaptive game-style music loops
Mutt-like mail client with terminal HTML+img, MCP, CRM & scheduled mail 0 open listings

discussion=https://news.ycombinator.com/item?id=49660245, title=Show HN: Mutt-like mail client with terminal HTML+img, MCP, CRM & scheduled mail, For the past few weeks I've been working on my mail client which is behaviorally based on neomutt, but it has a unified inbox/archive/etc. which is based on a notmuch backend. neomutt was a big pain for me to use with tag based email handling, and it's really hard to get it setup and working mail moving, when using a tag based workflow. I still found a bug in maildir flag handling by two days ago, so it turns out I underestimated all the corner cases that exist, but it should be good now. There is a setup function that sets up fcc and the folder structure per account. It does things such as schedule mail with NLP. It's fully async, it's tabbed, and because the HTML client(which supports images in the terminal) is fully integrated, when you use the MCP, it converts the HTML into useful text rather than feeding full HTML. It validates s/mime, but i didn't dare implementing gpg support it. There is a lua plugin example for using external file browsers like yazi for attachment selection. It also has a CRM queue that can be used to process new contacts with a pluggable api backend(only hubspot for now). Two things that are still in flux, which is why you would probably consider this alpha software is the config structure. For example I changed the mcp config to be per account permissions, rather than simple permissions, so I can gate each account. There is still a lot to do make this production quality, but I use it as a daily driver now. https://github.com/fishman/notmutt https://fishman.github.io/notmutt/
My coding agent apologized for being right, so I built Frank 0 open listings

discussion=https://news.ycombinator.com/item?id=49694234, title=Show HN: My coding agent apologized for being right, so I built Frank
My first iPhone app, OnlyRun, run alone or with others 0 open listings

discussion=https://news.ycombinator.com/item?id=49659764, title=Show HN: My first iPhone app, OnlyRun, run alone or with others, This is the first time I experienced iPhone app development. I've never really had the confidence to finish one. The last mile ended up being very difficult and I've tested it on a marathon, bird pooing on me, many many field tests outside. My main motivation was showing where I was during the marathon and talk to my family and friends then it evolved from there. There's also an event planned for tomorrow at 4pm PST if you want to test out the multiplayer run feature, just go at your own pace, talk with short voice clips, send cheers. https://apps.apple.com/us/app/onlyrun/id6764187221
My first vibe coded game planning to publish to Android 0 open listings

discussion=https://news.ycombinator.com/item?id=49739084, title=Show HN: My first vibe coded game planning to publish to Android
My weekend build that brings Astra VM agents to WhatsApp 0 open listings

discussion=https://news.ycombinator.com/item?id=49686315, title=Show HN: My weekend build that brings Astra VM agents to WhatsApp
My-IP-Info 0 open listings

discussion=https://news.ycombinator.com/item?id=49697060, title=Show HN: My-IP-Info – Ad-free IP intelligence, WebRTC, and DNS leak tester
MyFitnessPal 0 open listings

article=https://thoughtbot.com/blog/48-companies-you-didn-t-know-were-using-rails-in-2026, website=https://www.myfitnesspal.com, careers=https://www.myfitnesspal.com/jobs, ruby_jobs=0
MyMarkdown 0 open listings

discussion=https://news.ycombinator.com/item?id=49716619, title=Show HN: MyMarkdown – Make AI Markdown easier to read, I made a small free tool for humans (not AI) to read Markdown faster. If you build AI tools, you probably read a lot of Markdown. And you may have noticed that as it gets bigger, it gets harder for human eyes to digest. Here, just paste your Markdown, and it makes it cleaner and easier to read. It also makes JSON much nicer, which I needed a lot. It’s free. Maybe useful for other people building AI too.
MySamantha 0 open listings

discussion=https://news.ycombinator.com/item?id=49645994, title=Show HN: MySamantha – a productivity app where the AI is optional, Most of the recent tools being developed are versions of the personal assistant that everyone has been promising for a long time. I see ChatGPT, Claude, Gemini, Instinct (now viral), Muse, and many more. When I started to build MySamantha I thought about building a personal assistant as well. Connect email and calendar accounts to it, add some memory and context, give it some tools and it'll do things for you. I did launch it before here, and we realized that we were putting the least permanent part of the system at the center. I started wondering why the Assistant had to be the main product? But before that, why do I need a personal assistant? I was on team productivity before and I only wanted the AI to make me more productive. I had Notion, Obsidian, Todoist and I used them to be more productive at work and since ChatGPT came, I started using that heavily. But one thing that continued to piss me off is the fact that I am unable to share context between what I wanted to do. Sure, I am going to complain what each of these productivity apps did. Every productivity app had so much enshittification with AI stuffed down my throat that even though I love AI, I stopped going into those apps. Agents and shit. I don't need that, give me back my simple note taking app which I always loved. Their MCPs? No. I had context all over. I wanted something simple. With Models increasing intelligence day by day and labs releasing more and more models, there's one thing I knew for sure. Idk which model I'll be using two years from now. But I know I'll still have my emails, calendars, notes, documents, tasks, meetings and everything I've accumulated. So we started building MySamantha around that instead. Instead of a separate Notes app, Todo app, Email client or Calendar for everything, we built a place where I can work on all at the same place. Combine AI, connect my emails, my calendars associated with my work email, my Meeting Recorder are all here. At the same time, we don't want "everything in one place" to mean everything is stuck here. You can import from Notion, back your notes to both Notion and Google drive (as Google Docs), your to-do from Todoist or Microsoft To-do, import your vault from Obsidian, enjoy the same knowledge graph as Obsidian does, Export, etc., MySamantha sits on top of this. You can use any models. Bring your OpenAI, Anthropic, Google or even pay-as-you-go. If another model becomes better, change it. Don't like AI? switch it off. The product still works. The best part? everything is here in one place. Compare the meeting notes I had with the email I received to draft an email? yup, done. All context in one place. The Assistant becomes more useful, the more it knows about you. No model lock-ins. A pure productivity personal workspace where you can switch AI off if you don't need it. Feel free to check out what we're trying at https://mysamantha.ai Curious to know what HN thinks about this. Feedbacks and Queries welcome.
NADZZZZ⋆☾IN CRYPTO Hiring 1 open listing

url=https://x.com/NADZOE93/status/2097678834384454105, title=Ripple is "stealing" PayPal's coworkers 👀 PayPal is cutting people and Ripple is hiring them. Fun Fact about this. PayPal knows payments at scale and Ripple is , matching_tags=rails, description=...Fact about this. PayPal knows payments at scale and Ripple is building the next rails... 👀👀 If you grab someone from Google and PayPal to lead developer relations, you’re not https://t.co/hRKfh55MgM, author=@NADZOE93, author_name=NADZZZZ⋆☾IN CRYPTO
NYC MapTap 0 open listings

discussion=https://news.ycombinator.com/item?id=49605122, title=Show HN: NYC MapTap – Learn NYC neighborhoods
NYC rideshare market analysis (2019 0 open listings

discussion=https://news.ycombinator.com/item?id=49637542, title=Show HN: NYC rideshare market analysis (2019 – 2026)
NanoVector 0 open listings

discussion=https://news.ycombinator.com/item?id=49657006, title=Show HN: NanoVector – A 120KB zero-dependency vector search engine in C and SIMD
Nari Qwen3-TTS and Qwen3-ASR 0 open listings

discussion=https://news.ycombinator.com/item?id=49699267, title=Show HN: Nari Qwen3-TTS and Qwen3-ASR – High accuracy, low latency and cost, Hey HN, Toby from Nari Labs here. We've been working on making OSS speech models super-fast. Last year, we built Dia, the first OSS text-to-speech model capable of doing natural dialogue. Since then, so many more great speech models have been released to the public. But the market is still dominated by closed source models. We think that's an inference problem. Existing systems such as vLLM / SGLang are not well suited for multimodal inference. To prove this, we built an inference engine specialized for Qwen3-TTS and open-sourced it ( https://github.com/nari-labs/nari-qwen3-tts ). Running at sub-50 ms latency at 10 RPS, this showed open models can be run much faster and cheaper. Since then, we've been working hard to bring cheap, fast, and high quality serving to all. And we've even beat closed models at their game! Measured on the highly cited Coval (YC S24) voice AI benchmarks, our Qwen3-TTS endpoint not just is #2 in latency, but #1 in accuracy (WER) compared to 11Labs, Cartesia etc. while being the cheapest endpoint. Our Qwen3-ASR endpoint has the lowest latency and #2 accuracy, just 0.1% away from #1. It is the second cheapest model on the list. It took a lot of clever inference engineering to make these models quick, perform well while keeping costs low. Interestingly, Alibaba's official endpoints seem to perform worse in terms of accuracy and latency compared to ours. But nonetheless, much love to the Qwen team for OSS-ing these amazing speech models. We want to continue to push prices down to make speech technology a commodity - so that every app can have great TTS and STT without worrying about unit costs. We're also working on other parts of audio such as diarization - as well as video and world model inference. More to come!
Natively 0 open listings

discussion=https://news.ycombinator.com/item?id=49649358, title=Show HN: Natively – comms for agents built by agents, i have more agents than i have real humans who report to me now. as a serial founder/builder/domain hoarder, i have 5+ projects ongoing at all times and in the AI era, i can spin up a team of agents to work on them simultaneously. so at this point, across my businesses, i have some flavor of a gas city/company-wide ai harness for each along with instinct personally and it seems every SaaS app has an agent too. oh and my wife, who works 3 full time jobs (mother of 4, corp job, real estate agent) also has agents. BUT NONE OF THEM COMMUNICATE WITH EACH OTHER, at least not well. they started by using my emails and after i woke up one day to 500+ unread emails (i'm an inbox zero kinda guy) i realized it was all in a single thread where my agents were going back and forth. so i asked my agents to collaborate together on some better way to communicate with each other that isn't adapting something intended for humans but instead is built for and by agents. my one contribution was the domain, natively.io =) some forward looking stuff though i did give to the initiative:
NeXDM 0 open listings

discussion=https://news.ycombinator.com/item?id=49624145, title=Show HN: NeXDM – Fast 64-segment download manager for Windows in Rust
Nearby places ranked by quality score, not ads 0 open listings

discussion=https://news.ycombinator.com/item?id=49681716, title=Show HN: Nearby places ranked by quality score, not ads
Neat-annotations 0 open listings

discussion=https://news.ycombinator.com/item?id=49671201, title=Show HN: Neat-annotations – neat hand-drawn CSS annotations
Nenya 0 open listings

discussion=https://news.ycombinator.com/item?id=49711809, title=Show HN: Nenya – 0-deps AI gateway redacts secrets before they reach providers
Neobrutalism.dev 0 open listings

discussion=https://news.ycombinator.com/item?id=49699159, title=Show HN: Neobrutalism.dev – Just added Base UI support and added new color theme
Nerdulator 0 open listings

discussion=https://news.ycombinator.com/item?id=49722848, title=Show HN: Nerdulator – put something in, get everything out (no AI)
NeverStored 0 open listings

discussion=https://news.ycombinator.com/item?id=49711650, title=Show HN: NeverStored – hand a secret to someone, nothing is ever stored
Nevertwenty a novel approach to chord synthesis 0 open listings

discussion=https://news.ycombinator.com/item?id=49615358, title=Show HN: Nevertwenty a novel approach to chord synthesis, I play piano and I built this for myself recently. Type a song, hit play, and the chords come at you on the beat. It's Rock Band for real instruments: the chord you need is the one under the playhead.