Show HN: SlateDB – An embedded storage engine built on object storage https://ift.tt/RjptkX4

Show HN: SlateDB – An embedded storage engine built on object storage SlateDB is an embedded storage engine built as a log-structured merge-tree. Unlike traditional LSM-tree storage engines, SlateDB writes data to object storage (S3, GCS, ABS, MinIO, Tigris, and so on). Leveraging object storage allows SlateDB to provide bottomless storage capacity, high durability, and easy replication. The trade-off is that object storage has a higher latency and higher API cost than local disk. To mitigate high write API costs (PUTs), SlateDB batches writes. Rather than writing every put() call to object storage, MemTables are flushed periodically to object storage as a string-sorted table (SST). The flush interval is configurable. To mitigate write latency, SlateDB provides an async put method. Clients that prefer strong durability can await on put until the MemTable is flushed to object storage (trading latency for durability). Clients that prefer lower latency can simply ignore the future returned by put. To mitigate read latency and read API costs (GETs), SlateDB will use standard LSM-tree caching techniques: in-memory block caches, compression, bloom filters, and local SST disk caches. https://ift.tt/kGOD3hR August 15, 2024 at 12:47AM

Show HN: I've open sourced DD Poker https://ift.tt/FR2LzN4

Show HN: I've open sourced DD Poker I'm the original author of DD Poker, a Java-based computer game that ran on Mac, Linux and Windows and originally sold in stores in physical boxes. I shut down the backend servers in 2017 but the game is still functional and people can still play each other online even though the central lobby and find-a-game functionality no longer work. I've been asked over the years to release the source code, especially during the pandemic, and again this year. I finally got motivated to clean up the code and put it out there. The code is 20 years old and uses some ancient Spring, log4j, Wicket and other dependencies, but it still works on Java 1.8. https://ift.tt/e1znqip August 14, 2024 at 04:04AM

Show HN: I built a tool to try artworks on your own wall https://ift.tt/Lm1pjr6

Show HN: I built a tool to try artworks on your own wall Simply upload a photo of your wall, upload the artwork images, position them, and download the result. It's very lightweight and nothing is uploaded to a server - everything runs directly in your browser. Why I made this: Existing apps (like Artrooms) fell short for me because they only offered stock wall images and limited 3D positioning, especially if your wall isn't perfectly frontal. I wanted something more flexible that would allow me to experiment with more scenarios, even when the photo is taken at a weird angle. The objective is to get a feel of how'd it look like, without the result being super realistic. Details: - Built with Three.js. - It's a static site hosted on Cloudflare. - Uploaded images are stored in IndexedDB. - Some effects, like shadows and blending, work intermittently. Sometimes they really work, and sometimes they fail horribly. - I've included a few galleries from classic artists and default wall images so you can test it out right away. - I tried to make the UI as intuitive as possible, but that was surprisingly hard - especially in mobile where the space is limited. Any feedback would be greatly appreciated :-) https://ift.tt/9CstZ0Y August 14, 2024 at 02:17AM

Show HN: AnimeGenAi – AI-powered anime style image and video generator https://ift.tt/H6TUtmJ

Show HN: AnimeGenAi – AI-powered anime style image and video generator https://animegenai.com August 14, 2024 at 01:42AM

Show HN: AI Bartender in a Virtual Bar https://ift.tt/Zcv31ry

Show HN: AI Bartender in a Virtual Bar Note: The avatar will talk to you, so make sure you check your volume! Hello HN! I've seen a bunch of AI character type stuff online, but all of them were boring chat interfaces. I thought it would be more fun to give the characters an avatar and a 3d environment to interact with. The stack I'm using is Claude 3.5 for the LLM, OpenAI TTS, Stable Diffusion for generating drinks, and three.js for rendering. I exposed the prompt I'm using so people can play around with it by clicking the robot icon. If people find it interesting, I might add more environments, character customization options, etc. Hope you enjoy and let me know your thoughts/questions in the comments! If you want to know more, follow me on Twitter or join the Discord! https://ift.tt/6rno1gN https://x.com/neelmango https://ift.tt/0NSry35 August 13, 2024 at 10:58PM

Show HN: I spent days curating concert films in Spatial Audio (Dolby Atmos/5.1) https://ift.tt/7eZ8uTg

Show HN: I spent days curating concert films in Spatial Audio (Dolby Atmos/5.1) Hey, I spent days digging and curating concert films in Spatial Audio -- so you don't have to! I'm really into immersive audio and live music but couldn't easily find concert films to watch. I had to jump from app to app and dig deep into Amazon and Google to find cool stuff. So I hope that it makes your life better and that you'll find a concert you want to watch. Happy to send you personalized concert recommendations, feel free to comment or to send me an email with some of your favorite artists :) Thank you, Ax https://ift.tt/MHzbqFn August 13, 2024 at 03:19AM

Show HN: Llmq – Pipe stuff in the shell to AI https://ift.tt/XHGwr7l

Show HN: Llmq – Pipe stuff in the shell to AI I just put this together real quick and am finding it useful. Sharing in case anyone else would benefit from it. https://ift.tt/sGFXgp2 August 12, 2024 at 11:12PM

Show HN: Create HTML/Zip/PNG Polyglot Files in JavaScript (Web Presentation) https://ift.tt/Mx2b9O8

Show HN: Create HTML/Zip/PNG Polyglot Files in JavaScript (Web Presentation) https://ift.tt/QYqdJlL August 11, 2024 at 11:54PM

Show HN: Wannabe – A versatile Go tool for generating mock HTTP APIs https://ift.tt/FqgkSfE

Show HN: Wannabe – A versatile Go tool for generating mock HTTP APIs Hey HN! Half a year ago, I decided to learn the basics of Go and create something useful along the way. Thus, I created Wannabe, a tool that's useful for generating mock HTTP APIs used in integration and all the other kinds of testing. How it works? Wannabe functions as a standalone server. Upon receiving a request, it generates a cURL command from it based on the request matching configuration you set and generates a hash from the prepared cURL command. When in "proxy" or "mixed" mode, Wannabe proxies the request to the external provider and stores the request/response pair as a record in the configured storage provider using the generated hash as a key. When in "mixed" or "server" mode, Wannabe looks up the matching record in the configured storage provider using the generated hash as a record key and responds with the stored response if it finds a matching record. Of course, similar tools already exist, but this is the one I started, and I'm already implementing it into testing flows at the company I work for. ;) I'm kindly inviting you to check out the repository and documentation on GitHub. All comments and potential contributions in the future are highly welcome. If there’s enough interest, I’m more than ready to develop it further. Take care... and keep creating! https://ift.tt/y0elEPT August 12, 2024 at 12:38AM

Show HN: SuperRocola.com – Collaborative DJ Platform for Real-Time Music Sharing https://ift.tt/fxv8QOm

Show HN: SuperRocola.com – Collaborative DJ Platform for Real-Time Music Sharing Hi!, I've built Super Rocola, a web app that turns everyone into a DJ. Tech Stack: Built with SvelteKit, Node.Js, WebSockets and MongoDB Key Features: - Free from any kind of sign up / subscription - Create instant music sessions with a unique QR code - Integrates with YouTube and SoundCloud for vast music library - Real-time collaborative playlist management Problem It Solves: Eliminates the "aux cord fight" at parties and gatherings. Everyone can contribute to the playlist democratically. How It's Different: Unlike other music sharing apps, Super Rocola focuses on real-time collaboration and social interaction around music selection, whithout requiring to have an active subscription to any service. Future plans: - I would like to integrate more platforms (Apple music, Spotify, Deezer) I'd love to get feedback from the HN community on the concept, implementation, and any ideas for improvement. You can try it out at superrocola.com. Looking forward to your thoughts and suggestions! https://ift.tt/H1jIe9k August 11, 2024 at 09:25PM

Show HN: Index and search *all* your documents https://ift.tt/kj3IAFy

Show HN: Index and search *all* your documents Hey HN! I've build a simple tool to index and search your documents. This uses two great open source libraries: apache tika (for extracting content from docs) and apache lucene (for searching). It's been built with kotlin ktor as a web framework. You can index all kind of files (i.e doc, docx, xls, ppt, pdf, txt, html even ORC pdfs) and then search them using very advanced queries like "always contain X", "never contain X", "X near Y", wildcard search, proper stemming support etc. We're using it on my work where we have hundreds of thousands of doc/docx/pdf files and it works flawlessly! https://ift.tt/a3nqr1d August 11, 2024 at 03:44PM

Show HN: Rust GUI Library via Flutter https://ift.tt/iYGoJFL

Show HN: Rust GUI Library via Flutter Hi, I made a bridge ( https://ift.tt/968BbR2 v2.0.0) between Flutter and Rust, which auto translates syntaxes like arbitrary types, &mut, async, traits, results, closure (callback), lifetimes, etc. The goal is to make a bridge between the two, seamlessly as if working in one single language. Then, as an example, I showed how to write Rust applications with GUI by utilizing Flutter. That is discussed in the link in details. To play with it, please visit the GitHub repo, or refer to the end of the article for detailed folders and commands. When I first released 1.0.0 years ago, it only contained few features compared to today. It is the result of the hard work of contributors and me, and many thanks to all the contributors! https://ift.tt/UubqynM August 11, 2024 at 08:25AM

Show HN: Made an anonymous feedback app TeamSays https://ift.tt/BVjeazU

Show HN: Made an anonymous feedback app TeamSays Hi HN, it’s Kaz. I’m a dev/solo founder here with my startup TeamSays [0], which is an anonymous feedback channel for improving workplace experience. Put simply, it’s like a founder/HR manager’s always-on sidekick. The product idea grew out of personal experience in startups and ~600 employee org, and me learning the shocking stats of the costs for replacing talent. To those of you who have a job: replacing you would cost your employer ~20% of your annual salary [1]. If you’re highly specialized (which is very likely) it can cost up to 4x your annual salary [2]. So, keep that in mind when you negotiate your compensation or work-life balance. Here’s how TeamSays works: 1. Once you create an account you get a link to a minimal chat-like UI, you only have to create categories and questions. 2. Then you share link with your team announcing a new channel for tracking feedback/issues. 2. Team members visit and share something, you can then see their conversations get analyzed, and turned into a positive or negative report that becomes visible in the dashboard. 3. That’s it. Nothing else to do other than update or remove questions/categories over time — minimal maintenance. 4. Get weekly/monthly reports on the state of positive/negative reports and take action. Over time you can track progress of issues as active questions get rotated, so on a long-term timeframe you can derive progress stats and see where things went right/wrong. Essentially, it’s a channel for your team members to express their true concerns and opinions (possibly in explicit manner that otherwise wouldn’t be possible), which simplifies work of HR department if you have one or becomes one if you don’t. Personal conflicts, stress/anxiety, or simply not feeling safe/confident enough are possible reasons to have this channel. The chat is fully anonymous and it does not provide any way to identify participants other than a simple browser-based ID. I’ve personally experienced bad managers in otherwise good enough organizations. As a remote team member building personal connection for transparency is hard. We all know the old saying “people quit managers, not companies” which might not be 100% true [3] but I do find it to be true enough to base TeamSays around it. Obviously, TeamSays is not for every team/organization out there but for those that value transparency and simply want to make sure they have a safe, and private channel that is remote-friendly for their colleagues, clients, or employees I believe it’s a good tool in the arsenal and I hope you consider giving it a go. Improving team experience, and providing space where everyone can truly share their concerns and keep their privacy/anonymity. Even a simple fact of sharing issues could be beneficial if there is no alternative at all. Here are some stats: 1/3 of modern day workers wouldn’t accept a job if they didn’t agree with the views of the leadership [4]; managers must use meaningful interactions to build engagement [5] as remote employees’ connection to their organization’s purpose is declining. Lots of metrics point to a high expectations of modern day workplace, and I’m here to offer help to HR process — there is a free 7-day trial, and setting it up should take only a few minutes. I made sure TeamSays supports numerous languages, and am doing my best to add more. Please share your thoughts. Thank you. [0]: https://teamsays.com [1]: https://ift.tt/DH8AvXq... [2]: https://ift.tt/RNoYGW9... [3]: https://ift.tt/KVUcneB... [4]: https://ift.tt/TgqCKXV [5]: https://ift.tt/mbwKe38... August 10, 2024 at 09:49PM

Show HN: PlatePlanner – Design Beautiful Platemaps https://ift.tt/J6NEpLM

Show HN: PlatePlanner – Design Beautiful Platemaps Spend less time in excel and more time doing science. Design a platemap in seconds, share it with your team, and reuse it for future experiments. https://ift.tt/uX4eT3o August 5, 2024 at 07:57PM

Show HN: One status page to rule them all (aggregating 3k status pages) https://ift.tt/Zwa523F

Show HN: One status page to rule them all (aggregating 3k status pages) I recently got tired of subscribing to dozens of status pages (Cloudflare, Vercel, Twilio, GitHub, OpenAI) just to stay ahead of the outages that seem to happen almost every week. So I decided to build https://ift.tt/xTSNbol - essentially it's an aggregator that crawls 3,000 status pages every minute, so I can see the status of all services and infrastructure in one central place. I also added the capability to create a custom dashboard so that you can monitor specifically the services that you use. I built StatusSight using Next.js, with the frontend being deployed to Vercel, and the status page monitor deployed to Hetzner with Coolify. Let me know your thoughts! https://statussight.com August 8, 2024 at 10:41PM

Show HN: Spawn – Build iOS Apps with English https://ift.tt/8Ao6Qih

Show HN: Spawn – Build iOS Apps with English Hi HN, Spawn lets you build apps with human language. You can include images, audio and other files in your app just by dragging and dropping. Here's a demo video where I build the game of Snake in 60 seconds: https://www.youtube.com/watch?v=qIqp7cvmE_M As it’s still in alpha, you may need to regenerate a few times to get the app functioning the way you want. So far I’ve found it’s pretty good at generating simple utilities and games. Over time, as both Spawn and the underlying models improve, it will be able to build more complex software. I have a bunch of ideas for future updates, for example: - Allow users to include wireframes that Spawn will follow as it generates their app. - Android support in Mac, Windows & Linux Spawn desktop app. This way, people can use Spawn to build for both mobile platforms using the same app specifications. Imagine someone living in rural India using their Chromebook to build apps for their Android phone, without needing to learn how to code. - Enable people to build apps that have accounts and backend logic by autogenerating and deploying a backend during app generation. Any feedback would be greatly appreciated. https://spawnapp.com/ August 6, 2024 at 09:28PM

Show HN: I built interactive map of active and decommissioned nuclear stations https://ift.tt/JB2kxI8

Show HN: I built interactive map of active and decommissioned nuclear stations Hi all, I am not an expert in nuclear energy but I've always wondered and found it difficult to get a clear picture about the amount of nuclear stations located in a specific region. So I built this tool that shows all the nuclear plants in the world, scaled by their capacity and with indication of their status. Clustering is enabled by default and allows to see the sum potential capacity of a region. It's a fun tool for me: e.g. disable clustering, scale circle radius to 70%, go to EU, and you'll see Germany has shutdown all of the stations. Ofc it's a widely known fact, but what came to my surprise is that Poland, Turkey, Scandinavian countries, Africa have literally 1 to none nuclear stations. Which is kinda strange because some of these regions are modern, well-developed, and Africa specifically was sourcing lots of nuclear fuel for other countries other the years. idk what to do with it yet, but I think I'll come up with ideas for future improvements as I believe nuclear sector will grow drastically. https://ift.tt/qATRXtB August 8, 2024 at 01:10PM

Show HN: I Built an Open Graph Image Kit for Next.js with Tailwind Customization https://ift.tt/iNFTcEI

Show HN: I Built an Open Graph Image Kit for Next.js with Tailwind Customization https://ogimage.org/ August 8, 2024 at 09:26AM

Show HN: OllamaAgents – Your Natural Language Gateway to Linux Mastery https://ift.tt/hyGurfZ

Show HN: OllamaAgents – Your Natural Language Gateway to Linux Mastery OllamaAgents is a TypeScript-based CLI application that provides a Linux command interpreter using the Ollama API. It converts natural language queries into appropriate Linux commands, executing them if requested, offering explanations and cautions when necessary. https://ift.tt/U9Hd2VE August 8, 2024 at 05:34AM

Show HN: Voyage – Toolbox of otherwise expensive SaaS marketing tools https://ift.tt/1yCjhcB

Show HN: Voyage – Toolbox of otherwise expensive SaaS marketing tools Voyage is a bunch of marketing tools for SaaS in one platform. We're betting on three things: 1. Many marketing tools don't offer free tiers. Think Optimizely, 6sense, Mutiny, Typeform, Qualified, Marketo, Drift, etc. A lot of these have minimum contract sizes of 5 figures. Voyage is completely free right now (haven't shipped monetization yet) and will always be usage-based + free tier. 2. Having these tools in one place compounds. We offer global themes for all of the user-facing marketing assets, which means you won't have to manage a brand theme for each of Wistia, Drift, etc. We also can use the data from one tool to modify another. Ex: personalize the header of the pricing page based on whether a visitor went through the video on your splash page. 3. We can outship most engineering teams in the long term. It's difficult for mar-tech companies to attract/retain talent since they're GTM-first, not eng-first. We're building an eng-first mar-tech company, getting into teams early with a generous free tier, and making money as our customers scale. We can probably offer these tools much cheaper at bundled scale too. If you use any of these tools and want to combine them together for a reduced bill or better cross-tool integration, please reach out. We'd love to have you as a design partner. - Wistia / Vimeo - Typeform / HS forms - Optimizely / Mutiny - Google Analytics 4 - Drift / Qualified / etc - SEO content tools bryan.houlton@withvoyage.com https://ift.tt/mhAn76I August 8, 2024 at 04:25AM