Skip to main content

Posts

Show HN: An ultra-light-weight tool to quickly test your ping https://ift.tt/1SCpXEM

Show HN: An ultra-light-weight tool to quickly test your ping Howdy HN! I find myself testing my ping from time to time, especially when my internet seems wonky while WFH. It feels like there should be an easier way test my ping than puling up a terminal or a complex web app - especially when I'm on my phone or any other device that doesn't have a terminal. I figured I should be the change I wish to see in the world and created this super light ping test. I also created a latency monitoring solution ( https://ift.tt/9GhawPX ), feel free to clone and try it out! I know there are a lot more mature monitoring solutions out there, but I never did figure out how to set them up. This one is super simple: clone it to some device that's always on, compile it, set up some systemd stuff, and it's ready to rock on port 8180! https://ift.tt/qkOyvtB October 2, 2022 at 02:31AM

Show HN: Sksql a Database Engine in TypeScript https://ift.tt/oIuaEAx

Show HN: Sksql a Database Engine in TypeScript Hi! I wanted to understand more about databases' internals so I wrote one from scratch. It has a T-SQL inspired syntax with support for functions and procedures. It can be used stand-alone as a SQL engine or with a server allowing for persistence and replication to other connected clients. Performance are nothing near sqlite of course but that's beside the point. It’s a small database engine that can run in a web app as a way to store session data, do small calculations on a web worker, store the document/data the user is editing or facilitate “multiplayer” feature by broadcasting the queries the web app is running. The server runs in a container for that specific document and shutdowns automatically after a set amount of minutes of inactivity. https://ift.tt/HxA0wfn October 1, 2022 at 09:54PM

Show HN: Build your gRPC apps with embedded zero trust networking https://ift.tt/jpLs7n6

Show HN: Build your gRPC apps with embedded zero trust networking This project template lets you bootstrap your next gRPC app with zero trust overlay networking. Make your gRPC server invisible to bad actors, and only allow verified clients to connect to it. https://ift.tt/LlwMsrj September 30, 2022 at 06:28PM

Show HN: Jsonnet Course Online https://ift.tt/cMDnsk5

Show HN: Jsonnet Course Online Hi HN! I'm usually a lurker here, but I wanted to share this: I'm an enthusiastic user of Jsonnet[1] to flexibly generate JSON and YAML files (eg for kubernetes configurations). I wanted to spread awareness of Jsonnet and made a course on Udemy. The first 1000 students enrolling within 5 days with this link get the course for free: https://ift.tt/EvcCDA2... I hope you enjoy the course (I'm interested in your feedback!) and if it makes you start using Jsonnet it will be mission accomplished :-) [1] https://jsonnet.org/ https://ift.tt/jruQd2v September 30, 2022 at 01:49PM

Show HN: Red Goose – Convert your website to mobile app https://ift.tt/xkf4qUp

Show HN: Red Goose – Convert your website to mobile app Hi HN! We're Sonica, Marvin, and Satie, and we are building Red Goose (https://goose.red). Red Goose is a web app to mobile app conversion engine that produces ready-to-publish apps for the app stores using GitHub repos. There was a discussion on HN a few weeks ago about how a developer shaved off almost half of their native app's code without losing functionality [1]. Our launch today is a direct outcome of that thread and, moreso, in the context of this comment [2] and this one [3]. Paraphrasing the context below: > "Fastmail is the only email/calendar app with a reasonable size (just 20MB)." Followed by: > "… EDIT: just realized the app is a web view. Sigh." As someone who has been into mobile app development since 2010, the comments above read like a punch to the gut. We grew up believing that the native experience was better than the web! It took a while to admit, but the web, it appears, has...

Show HN: Git in-memory in browser with Web Assembly https://ift.tt/SRbeqNP

Show HN: Git in-memory in browser with Web Assembly Create, upload, edit (multiple) files on the fly, in the browser. Git branches and git commits allow to save your changes, create multiple "workspaces" and switch between them in one click. Repo: https://ift.tt/tJrRa5H https://ift.tt/6F27qWN September 30, 2022 at 12:50AM

What a Year It Has Been! Let the Celebration of Transit Month Continue

What a Year It Has Been! Let the Celebration of Transit Month Continue By Erin McMillan 49 Van Ness/Mission using the brand new bus rapid transit lanes on opening day in April. During Transit Month this September, we’re continuing the celebration by looking back to more of the work we’ve done over the last year— some that has been less obvious to Muni customers, but critical to a well-functioning system and other work that is more front and center. Fix It! Week and Continuing State of good Repair Work Muni is an impressive transit system. Moving thousands of people on rail and buses every day takes a lot of coordination and a lot of work. Dealing with unique challenges like San Francisco’s geography and shifting travel patterns, we also have to deal with issues related to the Muni system’s age. Proper care and maintenance of a transit system many decades old takes strategic planning as regular maintenance needs to happen while continuing to provide service. Typically, regular Mun...

Show HN: Restapp.io – SQL Data Modeling Tool in No/Low Code https://ift.tt/8fAN4yd

Show HN: Restapp.io – SQL Data Modeling Tool in No/Low Code Hey all! We've been working on RestApp V1 and this is our first time posting it on HN. It's an No/Low Code data modeling tool that enables you to build & maintain data pipelines with a visual programming interface. We don't store your data but we compute them through Apache Spark for query speed & efficiency. Here's some features: `Connectors: Connect to any source and destinations (DB, DWH and SaaS Applications). We currently support MongoDB, Snowflake, BigQuery, MySQL, MSSQL, SFTP (JSON, txt, csv, excel files supported), Hubspot, Stripe, GDrive (JSON, txt, csv, excel files supported). `Pipeline: Visual Programming Interface where you drag-and-drop SQL, NoSQL & Python functions instead of writing them to create a query and debug it easily. `Automation: You can automate your data pipeline (Job) through a scheduler. `Domain: Think of it like a workspace in which you can share securely your connectors...

Show HN: KaithemAutomation, the home automation system for coders and artists https://ift.tt/HekW3MO

Show HN: KaithemAutomation, the home automation system for coders and artists I've talked about this one on Reddit a bit, and I think it's finally about ready to talk about here. I started this project around 2013 for internal use, and GPL licensed it because I have no desire to own my own software business. Kaithem is, for the most part, somewhere between a SCADA and a Home Assistant clone, heavily focused on easy deployment with minimal tinkering. It allows for Python code based if-then events you edit via the web, along with web-editable HTML dashboards, but also includes loadable modules for more point-and-click style editing. One of these is Chandler, a scenes/cues manager that includes a simple visual scripting language inspired by ladder logic. It saves everything you create in Git-friendly plain text files, and is meant to integrate well with a linux system, with convenience features like using the user account username/password to log in. Device drivers created via an ...

Show HN: A curation of resources telling the story of Bitcoin https://ift.tt/zfGSh1J

Show HN: A curation of resources telling the story of Bitcoin Spend the past couple of months creating a large curation of resources from the best Bitcoin educators. The goal was to create a wholesome journey that went beyond just talking about what Bitcoin is and how it works, but also helps newcomers understand why Bitcoin exists and why it can be such an impactful technology for people all over the world. I hope it can help people get a broader understanding of Bitcoin and allow them to make an informed judgement on its value to the world. p.s. I would love to make this community-driven and the GitBook is open-source. Do contribute if you would like to! It would be much appreciated. https://ift.tt/np2BEAz September 27, 2022 at 11:59PM

Show HN: Etch – Stable Diffusion Client for iOS https://ift.tt/CRuiJYA

Show HN: Etch – Stable Diffusion Client for iOS TestFlight download: https://ift.tt/CaU86JX Requires a free DreamStudio API key from https://ift.tt/5oyMAn2 Supports txt2img, img2img, & inpainting (not affiliated with Stability AI) https://twitter.com/shubroski/status/1574767056003780608 September 27, 2022 at 09:16PM

Show HN: Get conversational practice in over 20 languages by talking to an AI https://ift.tt/xIpYXBZ

Show HN: Get conversational practice in over 20 languages by talking to an AI Hi everyone, Let me introduce you to Quazel, where we want to enable people to talk their way to fluency. We have all tried various language learning apps and tools, however, one aspect of language learning current services are really bad at is conversational practice. You might get a chat-like interface, but in the end, the conversation partner will only respond with a predefined "if the users say X I say Y". With Quazel that's completely different. In completely dynamic and unscripted conversation you can talk about pretty much anything you want. For example, you can try ordering food at a restaurant and even hold a philosophical discussion with Socrates. Additionally, you can analyze the grammar of your responses or use hints to help you out when you get stuck. We want to change how languages are learned from a grammar-centric approach to a more natural, conversation-focused one. https://ift....

Show HN: Script to prevent same day meetings on my corporate calendar https://ift.tt/7r5lpCX

Show HN: Script to prevent same day meetings on my corporate calendar Hi, I have a corporate job, I have most of my notifications off, and try to work in blocks of focus time. When colleagues schedule same day meetings I often miss it because I saw it too late. Which makes me feel guilty. This tool helped me avoid feeling guilty by preventing last-minute meetings. https://ift.tt/WM38Jq6 September 26, 2022 at 12:30PM

Show HN: Clammer – share and discuss article excerpts with friends https://ift.tt/PMTHIxL

Show HN: Clammer – share and discuss article excerpts with friends Clammer is a social platform for sharing and discussing excerpts from online written content. It's like Twitter but every post and thread stems from the facts, quotes, and insights you collect online, all tied back to the source. In fact, you can have a whole conversation without ever writing a single word. I made this because I was tired of rehashing vague opinions, the real juicy conversations are in the details. Would love to know if this resonates with anyone; any and all feedback is hugely appreciated. Demo: https://www.youtube.com/watch?v=ZU-4uMcNiGk https://clammer.io September 26, 2022 at 06:35AM

Show HN: Outstatic an open source CMS for Next.js https://ift.tt/Unxpq4v

Show HN: Outstatic an open source CMS for Next.js Hi, I've been working on a new project for a couple of months and I'm close to launching it. It is called Outstatic, I created a landing page for it. Sing up to the waitlist to be notified when it comes out. Features include: Open source Host for free Keep your data 5 minute setup (5 minutes to live!) The CMS was built with Next.js and uses Github and Vercel as its main hosting platforms. Full site with examples and documentation coming soon. Feedback on the idea and the current landing page is appreciated. Thank you! https://outstatic.com September 25, 2022 at 11:47PM

Show HN: I build a terminal-friendly static file server https://ift.tt/dvI1bk8

Show HN: I build a terminal-friendly static file server If you ask why there was .hg and .hgignore in a Git repository, it's because I completely forgot this project is my first ever project using Mercurial as SCM. As such, I foolishly `git init` the repository and have to update both .gitignore and .hgignore to finish the changes. You can also see the Mercurial version of this thing at here: https://ift.tt/4wqgAQp https://ift.tt/A3TdLXP September 24, 2022 at 03:45PM

Show HN: An AI image generator for blog posts https://ift.tt/T3DVeKL

Show HN: An AI image generator for blog posts Hi there, I see many bloggers use stock images for their blog posts (as featured images or as in-post images). I thought of something and started trying to use AI to replace those images. I built a small tool for this so others can also test it out. It takes text content (ideally, the blog post intro in case of a featured image or the text content about whatever you want the image about) and gives you an image. It works for me but I am still testing this. How about you guys? https://ift.tt/WNIDRie September 23, 2022 at 05:21PM

Show HN: A Stable Diffusion desktop frontend with inpainting, img2img and more https://ift.tt/sfpzw0A

Show HN: A Stable Diffusion desktop frontend with inpainting, img2img and more I was frustrated with laggy notebook stable diffusion demos. Plus they usually didn't have all the features I wanted (for example some of them only had inpainting and some only had img2img, so if I wanted both I had to repeatedly copy images between notebooks). So I made this desktop frontend which has much smoother performance than notebook alternatives and integrates image generation, inpainting and img2img into the same workflow. See a video demo here: https://ift.tt/zelNsGB... Features include: * Can run locally or connect to a google colab server * Ability to erase * Ability to paint custom colors into the image. It is useful both for img2img (you can sketch a rough prototype and reimagine it into something nice) and inpainting (for example, you can paint a pixel red and it forces Stable Diffusion to put something red in there) * Infinite undo/redo * You can import your other images into a scratch p...

Show HN: An async traceroute(1) implementation in Rust https://ift.tt/WnSuYwM

Show HN: An async traceroute(1) implementation in Rust I wrote a minimal traceroute(1) clone that leans on asynchrony to reduce the time spent tracing a route. Underneath, it uses ICMP to do its job. The plan is to add support for UDP tracing and a path maximum transmission unit discovery mechanism. Comments and suggestions are welcome! https://ift.tt/wqOjyFN September 23, 2022 at 12:52PM

Show HN: Venice – open-source Plaid to Postgres in minutes without code https://ift.tt/M8QrZg6

Show HN: Venice – open-source Plaid to Postgres in minutes without code Hi HN! Tony & Ali here, we are super excited to introduce Venice - an open source financial data integrations platform. Our MVP is getting financial data from Plaid into your postgres database in under 5 mins. We met while building our own respective fintechs. We noticed how much developer time went into setting up and maintaining the infrastructure rather than actually building the fintech itself. In Tony’s last project Alka for instance, the engineering team spent 30%+ of time building and maintaining the data connectivity and pipeline rather than the core work of accounting. What we wish existed is a Segment / Airtable for fintech, letting you get financial data from wherever they are produced to anywhere they are useful. We think the most basic version is a Plaid to Postgres database connector with a self-service portal where your customers can add / remove / repair and manage their financial connections. T...

Show HN: Copy link to highlight alternative for Chrome with multiple highlights https://ift.tt/G4jWtPc

Show HN: Copy link to highlight alternative for Chrome with multiple highlights Hi HN! I made a Chrome extension called Save Link to Highlight. It makes it easy to share multiple highlights on a page without any hassles. It uses the same built-in technology in Chrome as Copy link to highlight. So, the link you share will highlight text on a page in most browsers without 3rd party tools. Ex. https://ift.tt/WKe8ovC It's free! No account or signup needed. Some everyday use cases • Share an article with a friend that also has the parts you found most interesting highlighted. • A teacher can share key points they highlighted for students on a Wikipedia page. https://ift.tt/HfX6b0M September 22, 2022 at 06:34PM

Show HN: Check if anyone else submitted a thing to HN and then submit it https://ift.tt/AkI20Hw

Show HN: Check if anyone else submitted a thing to HN and then submit it Hi HN! I made this for myself to submit stuff to HN without copy pasting. I also recently added a thing to check if anyone else already submitted the link to avoid posting duplicates. I find it pretty useful myself and I hope you do too! https://ift.tt/ra8Jv60 September 22, 2022 at 04:18AM

Show HN: Hurl, test APIs with plain text and libcurl https://ift.tt/mD0sHiw

Show HN: Hurl, test APIs with plain text and libcurl Hi, We're happy to release a new version of Hurl [1]. Hurl is a command line tool powered by curl, that runs HTTP requests defined in a simple plain text format: # Get home: GET https://example.org HTTP/1.1 200 [Captures] csrf_token: xpath "string(//meta[@name='_csrf_token']/@content)" # Do login! POST https://ift.tt/C0cJptv X-CSRF-TOKEN: HTTP/1.1 302 Hurl can be used to get data like curl, or as an integration testing tool for JSON/XML HTTP apis / HTML content. Requests can be chained, and one can add asserts on response headers, cookies and body. For instance: GET https://ift.tt/naFj7Nk screencapability: low HTTP/1.1 200 [Asserts] jsonpath "$.validated" == true jsonpath "$.userInfo.lastName" == "Herbert" jsonpath "$.hasDevice" == false jsonpath "$.links" count == 12 jsonpath "$.order" matches /^order-\d{8}$/ You can see more samples in the documentati...

Show HN: Backwards automatic differentiation in ~100 lines of Python https://ift.tt/NvJoy8Y

Show HN: Backwards automatic differentiation in ~100 lines of Python Inspired by the recent posts on implementing forwards mode automatic differentiation, here's an attempt at the backwards mode, which is often more efficient when your function depends on many variables but outputs just one value. https://ift.tt/vELqupO September 21, 2022 at 02:55AM

Show HN: TaskTXT, plain text task-timing notepad https://ift.tt/qR70KSO

Show HN: TaskTXT, plain text task-timing notepad I built TaskTXT.com based on my experience timing my tasks. I found that committing to a task before I start helps with my focus, and guessing how long it will take, then timing it prevents me from wanting to give in to distractions because I'm "on the clock". Video Overview: https://www.youtube.com/watch?v=HOYO0c_D6w0 There's also a Mac app which you can download here: https://ift.tt/cRAKN9k Video overview of the Mac app: https://www.youtube.com/watch?v=qMs-V5v5gZY But I didn't want the tool to be distracting, so its based on plain text. That means the UI is very familiar and you can use it for generic notes in any structure you like. When you work in TaskTXT you are working directly on its data format, I made a video about this concept here: https://www.youtube.com/watch?v=kZdBgVZn5NI I think this tool is uniquely suited for programmers, so I'd be interested to hear any feedback about the product, or its viabi...

Show HN: Tigris – the open source developer data platform for your next app https://ift.tt/KLFZrAp

Show HN: Tigris – the open source developer data platform for your next app Tigris is the first truly open source developer data platform with a simple yet powerful, unified API that spans search, event streaming, and transactional document store. It enables you to focus on building your applications and stop worrying about the data infrastructure. https://ift.tt/tIuDTAG September 20, 2022 at 11:47PM

Show HN: Vanity Post – Create a stylish image/video of your post https://ift.tt/WPwErp6

Show HN: Vanity Post – Create a stylish image/video of your post Hey there, over the past fortnight I decided to create a stylish and simple way to create images or videos of your soon to be social media posts. Simply enter your twitter profile, toggle which vanity badges you would like, and write your post! All data is kept on the client side so we won't see your upcoming content either. We're currently live on Product Hunt as well so if you enjoyed the tool please support us there: https://ift.tt/OKxNwvu https://vanitypo.st/ September 19, 2022 at 02:33PM

Show HN: Distributed JMAP and IMAP Servers in Rust https://ift.tt/sL9tfBX

Show HN: Distributed JMAP and IMAP Servers in Rust I am happy to announce Stalwart JMAP [1], an open-source JSON Meta Application Protocol server that aims to be scalable, robust and secure. Some of its key features are: - JMAP Core, JMAP Mail and JMAP over WebSocket full compliance. - IMAP4 rev2/1 support via Stalwart IMAP, an imap-to-jmap proxy [2]. - Scalable and fault tolerant: consensus over Raft, node autodiscovery over gossip and read-only replicas. - RocksDB backend with full-text search support in 17 languages. - OAuth 2.0 authorization code and device authorization flows. - Domain Keys Identified Mail (DKIM) message signing. - Written in Rust. - No third-party software required to run or scale. The next item on the roadmap is to release an SMTP server in Rust with the goal of making self-hosting an e-mail server much simpler. Any comments or suggestions are more than welcome! [1]: https://ift.tt/P5YDxI8 [2]: https://ift.tt/idgzHU3 https://ift.tt/P5YDxI8 September 19, 2022 at ...

Show HN: iq – jq for images (using rust, LALRPOP) https://ift.tt/0sqpS4E

Show HN: iq – jq for images (using rust, LALRPOP) I wanted to share an experimental side project I have been working on for some time. I constantly use commands like `jq` and `yq` for processing structured data in my day job and I was curious if a similar idea could be applied to images. Another goal of mine was to get some exposure to with rust. I discovered the LALRPOP parser generator which really helped moved the project along ( https://ift.tt/s6dEy51 ) https://ift.tt/2ZHsuUV September 18, 2022 at 11:58PM

Show HN: Krita Stable Diffusion Plugin https://ift.tt/olzhCMF

Show HN: Krita Stable Diffusion Plugin This is still a very new project under active development but I wanted to show it off in case anyone is interested in bookmarking it or contributing. Demo here: https://www.youtube.com/watch?v=maWR7dDf4SE Although it will be improving, the codebase has a few issues The Good - ability to multitask within krita while generating images - uses a queue so you can queue up multiple images without waiting for your other batches to come back - no need for a webserver (uses sockets to communicate) - clean code - active development (i want to use this tool myself) - uses stablediffusiond and stablediffusion as separate repos, these can be swapped out as desired with some hacking The Bad - currently relies on rabbitmq and doesn't provide another option - plugin only does txt2txt. img2img works but is disabled - must acquire the model manually The ugly - not all of the features work yet. in fact you can only generate an image. - installation is somewhat i...

Show HN: A Search Engine for the Tildeverse https://ift.tt/KFtm7OA

Show HN: A Search Engine for the Tildeverse The tildeverse is the name for a loose community of public access unix systems inspired by Paul Ford's famous tilde.club essay. These little communities are built up around shared access to a single unix system, utilizing its native multi-user properties almost as a retro social network. Over time, the communities have grown and folks published handmade pages that have the vibe of the early WWW days. I built a search engine to let everyone find things on this quirky part of of the net. Enjoy! https://tilde.wtf September 16, 2022 at 07:38PM

Show HN: A framework for building Slack bots in Python https://ift.tt/M7pdtR1

Show HN: A framework for building Slack bots in Python I started building this framework a couple of years ago because I found no easy existing solution to build Slack bots that can be composed/organized from plugins. I recently rewrote the complete framework to make use of asyncio and the newest Slack SDKs Let me know what you think! https://ift.tt/GNK8z46 September 16, 2022 at 08:17PM

Show HN: Aperture Open Source Flow Control and Reliability Platform https://ift.tt/fxQOhtU

Show HN: Aperture Open Source Flow Control and Reliability Platform Hello people of HN and fellow SREs! Over the past year, we have been building Aperture - an open-source flow control and reliability platform for cloud applications. Over the past few years, companies like LinkedIn[1], Google [2], Netflix [3], Stripe [4] have built cutting-edge flow control technologies to keep their applications reliable. Flow control is powerful because it enables graceful degradation- the ability to preserve key user experience pathways, even in the face of application failures. With Aperture project, we hope to democratize building reliable applications with effective flow control. Using Aperture’s powerful policy language, you can deploy flow control techniques such as weighted fair queuing for prioritized load-shedding and distributed rate-limiting for abuse prevention to your applications. Using modular components to build policies allows you to maintain optimal user experience during traffic sp...