Show HN: Marple – Interactive time series visualization for engineers https://bit.ly/3vmT5Gx

Show HN: Marple – Interactive time series visualization for engineers Hi HN, excited to share the project I have been working on for the past two years. Marple was created by engineers for engineers. Marple helps them organize and analyze their sensor data in a more user-friendly way. We’ve all been there: measurement data from an experiment or test needs to be analyzed but the only thing you have is a few data files flying around. You do not have a clue how to open or read the data. So what you do next is open your Python/Matlab/Jupyter Notebook/… and start coding in order to make some sense of the data. We didn’t like that process, so we started Marple to solve this issue. Engineers tend to log data at frequencies from 1Hz to 10kHz and usually log hundreds of sensors at the same time. Data sets usually contain millions of data points. In order to make our web-based data visualization responsive, we had some technical challenges to tackle. We developed our own visualization engine based on PostgreSQL that is able to visualize millions of data points pretty much instantly. This allows us to create an interactive visualization environment which is perfect for data exploration, even for large data sets! This is the second time we show Marple to HackerNews, but since then we made some big steps. We made a pivot to a cloud product and now offer a free version of Marple. Feel free to head over to our website and give it a go. Let us know what you think of it! https://bit.ly/3cBjDxh July 28, 2022 at 10:13AM

Show HN: SDWM – Simple Dynamic Window Manager for Windows https://bit.ly/3Q43ZJt

Show HN: SDWM – Simple Dynamic Window Manager for Windows https://bit.ly/3PTVzo0 July 28, 2022 at 09:51AM

Show HN: My website now has a CRT filter https://bit.ly/3baBPxz

Show HN: My website now has a CRT filter https://bit.ly/3bTQgBa July 28, 2022 at 05:10AM

Show HN: List of Hacking Resources https://bit.ly/3bdhojA

Show HN: List of Hacking Resources I have a list of hacking resources that I have recently been collecting, they include resources where you can learn hacking and tools to hack, most of it is for pentesting Practical and tools https://www.youtube.com/c/PentesterAcademyTV/videos https://bit.ly/3zFqHCm https://bit.ly/3zCszvj https://bit.ly/3zB6TQs https://bit.ly/3cAoA9B https://bit.ly/3zDRWwY https://bit.ly/3PYRej5 https://bit.ly/3cPbgOY https://bit.ly/3zFW4wB https://bit.ly/3zDS3bS Learning https://www.youtube.com/c/PentesterAcademyTV/videos https://bit.ly/3zFBOeA https://bit.ly/3zCouaA https://www.youtube.com/watch?v=SFbV7sTSAlA&t=108s https://bit.ly/3bfHOBi https://bit.ly/3PWVdgf https://bit.ly/3zEfP7A https://www.youtube.com/watch?v=-KBm3tBNK74&list=PLidcsTyj9JXL4Jv6u9qi8TcUgsNoKKHNn https://bit.ly/3PWHm9C https://bit.ly/3Q1FRHm https://bit.ly/3zDRWwY https://bit.ly/2RjGrUG https://bit.ly/3zDS3bS https://bit.ly/3Q1FRXS July 28, 2022 at 05:01AM

Show HN: A simple tool to easily create complex Midjourney prompts https://bit.ly/3zzvp4l

Show HN: A simple tool to easily create complex Midjourney prompts https://bit.ly/3zAnKCX July 28, 2022 at 01:29AM

Show HN: Vessal – Shipping made purposeful https://bit.ly/3zaSgSA

Show HN: Vessal – Shipping made purposeful https://bit.ly/3bhMQwV July 28, 2022 at 02:58AM

Show HN: TypeScript Editor that generates structured forms from TypeScript types https://bit.ly/3PUmrnu

Show HN: TypeScript Editor that generates structured forms from TypeScript types Hey HN! I've been doing a lot of work with the TypeScript Compiler API[1] recently as part of my work on Preview.js[2], an IDE extension that lets you preview React/Solid/Vue components. One thing I noticed is that even with great autocomplete and type validation, creating/editing JS values that match a given TypeScript type can require a lot of typing. This is especially the case in Preview.js, where you can edit the props you pass to the component you're previewing in the bottom right panel. For example, quickly switching between different variants of a union type can be a hassle. To solve this, I decided to try creating a tool that generates a structured from for a given TypeScript type. For example if you pass it `type Foo = { bar: string, baz: number }`, it will show you a form with two inputs `bar` and `baz` with the appropriate types, and it will output the equivalent JS code (or JSON) as you type. You can try it at https://bit.ly/3cO5BbF I built this as a standalone tool so that I could debug it easily (and indeed, I found a ton of great bugs!). As it took shape, I realised there might be other use cases for it than Preview.js. Imagine for example using this in Postman (or whichever tool is better than Postman these days!) instead of inputting JSON values for your request payloads. Or perhaps using this for ad-hoc forms (the form is effectively encoded in the URL). I'm curious what you'd see yourself using this editor for? Any feedback welcome of course! Thanks François (@fwouts on Twitter) [1] https://bit.ly/3OBzUQ9... [2] https://bit.ly/3vkIiNd https://bit.ly/3cO5BbF July 28, 2022 at 12:17AM

Show HN: Quarter Life List – Stories and Resource to find your purpose https://bit.ly/3bde87N

Show HN: Quarter Life List – Stories and Resource to find your purpose https://bit.ly/3zixxwe July 27, 2022 at 03:03PM

Show HN: Birdy – Twitter Profile A/B Testing https://bit.ly/3Q1OOAy

Show HN: Birdy – Twitter Profile A/B Testing https://bit.ly/3PCyYfz July 27, 2022 at 12:57PM

Show HN: Discover and discuss one painting a day https://bit.ly/3BjujuQ

Show HN: Discover and discuss one painting a day Hi everyone, I made Peerdiem (a portmanteau word between Peer and Per Diem, which means Per Day in latin). The idea is very simple, a new painting or artwork to discover and discuss with your peers every day. Content is currently only fetched from Chicago Art Institute Free API [1] but I'm planning to add more sources in the short future. It was built with a couple of technologies I wanted to try for some time. Frontend is made with Preact and styled with Tailwindcss. Backend consists of an FastAPI app deployed in a Docker container. [1] https://bit.ly/3oxahp1 https://bit.ly/3BlH34g July 27, 2022 at 01:22PM

Show HN: Create reproducible data analysis workflows with pytask https://bit.ly/3PFNraD

Show HN: Create reproducible data analysis workflows with pytask https://bit.ly/3S2oms9 July 27, 2022 at 10:06AM

Show HN: Pulter – CSV, Spreadsheet import button for a web app, SaaS or system https://bit.ly/3vllQ6B

Show HN: Pulter – CSV, Spreadsheet import button for a web app, SaaS or system https://bit.ly/3vistGP July 27, 2022 at 07:09AM

Show HN: Canvas, Browser, Note Taking, One app to rule them all https://bit.ly/3cE8tbb

Show HN: Canvas, Browser, Note Taking, One app to rule them all Superus is a canvas app with browser and notes built in. You can put all your workpieces(ex: Notion, Figma, Airtable) together in a visual workspace. https://bit.ly/3OxePqd July 27, 2022 at 04:26AM

Show HN: I built a note taking tool that executes Python for indie hackers https://bit.ly/3cKeN0I

Show HN: I built a note taking tool that executes Python for indie hackers https://bit.ly/3cMkHOQ July 27, 2022 at 01:12AM

Show HN: Motor Admin Rails – Low-Code Admin Panel Gem https://bit.ly/3zzgqrb

Show HN: Motor Admin Rails – Low-Code Admin Panel Gem https://bit.ly/3cIaOSy July 26, 2022 at 01:42PM

Show HN: CodeStruct – Python programming environment for novices after Scratch https://bit.ly/3ovd5mF

Show HN: CodeStruct – Python programming environment for novices after Scratch https://bit.ly/3z6fEAp July 26, 2022 at 12:03AM

Show HN: Komokana – Automatic app-aware keyboard layer switcher written in Rust https://bit.ly/3S4a7D0

Show HN: Komokana – Automatic app-aware keyboard layer switcher written in Rust https://bit.ly/3baJgVy July 26, 2022 at 06:20AM

Show HN: Visual interactive explanations of VLOOKUP use-cases https://bit.ly/3PzcEnh

Show HN: Visual interactive explanations of VLOOKUP use-cases https://bit.ly/3PN8Mio July 25, 2022 at 10:52PM

Show HN: Open-Source Notion UI, Lotion https://bit.ly/3Be2ynu

Show HN: Open-Source Notion UI, Lotion My friend and I love the Notion UI, so we open-source a version we have been building. - Block-based editor - Drag to reorder blocks - Basic Markdown-parsing including bold, italic, headings and divider - Type '/' for command menu and shortcuts Tiny fun detail: When you move between blocks with your arrow keys, your cursor will remain at roughly the same horizontal position (vs jumping to the start or end of a block). Lotion is quite limited for now, and we would love any contributions (e.g. image blocks, video blocks, code blocks, etc.) https://bit.ly/3cFdEYm July 26, 2022 at 02:23AM

Show HN: PickCode – An educational coding environment for students after Scratch https://bit.ly/3PQ9Phi

Show HN: PickCode – An educational coding environment for students after Scratch PickCode is designed for use on desktop and tablet, and supports creating chatbots, visual designs, and 2D games. There is plenty of functionality missing - you can't add media to games for instance, but the current version shows off the foundation of what I'm aiming at. I taught myself to code using MIT's App Inventor, so I have an enormous respect for block based languages like App Inventor, Scratch, Snap!, MakeCode, etc. PickCode is my attempt at adding options for students who want to learn more about programming without making the jump to text, or as an alternative to block coding for beginners coming to programming at an older age. The visual language is meant to lower the barrier to entry to coding but the far more important aspect for me is giving students the ability to make things they're proud of as quickly as possible. A JS/Python API for controlling the chatbot and game engine are in the works. As of now, there are sample programs to play with and an editor which saves your programs to local storage. Full user accounts, tutorials and administrator accounts for teachers to organize assignments are on their way soon. If you're interested in using PickCode in a classroom or want to discuss feedback, send me an email at charlie@pickcode.io https://bit.ly/3PryQA1 July 25, 2022 at 09:16PM