Show HN: An open source performance monitoring tool https://ift.tt/iBt6HUh

Show HN: An open source performance monitoring tool Hey HN. We’re Jay and Vadim from Highlight.io ( https://highlight.io ). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had an idea of what API route was slow, there wasn’t much visibility into the actual bottleneck. This is where our performance product comes in: we’re rethinking a tracing/performance tool that focuses on bridging the gap between the client and server. What’s unique about our approach is that we lean heavily into creating traces from the frontend. For example, if you’re using our Next.js SDK, we automatically connect browser HTTP requests with server-side code execution, all from the perspective of a user. We find this much more powerful because you can understand what part of your frontend codebase causes a given trace to occur. There’s an example here [3]. From an instrumentation perspective, we’ve built our SDKs on-top of OTel, so you can create custom spans to expand highlight-created traces in server routes that will transparently roll up into the flame graph you see in our UI. You can also send us raw OTel traces and manually set up the client-server connection if you want. [4] Here’s an example of what a trace looks like with a database integration using our Golang GORM SDK, triggered by a frontend GraphQL query [5] [6]. In terms of how it's built, we continue to rely heavily on ClickHouse as our time-series storage engine. Given that traces require that we also query based on an ID for specific groups of spans (more akin to an OLTP db), we’ve leveraged the power of CH materialized views to make these operations efficient (described here [7]). To try it out, you can spin up the project with our self hosted docs [8] or use our cloud offering at app.highlight.io. The entire stack runs in docker via a compose file, including an OpenTelemetry collector for data ingestion. You’ll need to point your SDK to export data to it by setting the relevant OTLP endpoint configuration (ie. environment variable OTEL_EXPORTER_OTLP_LOGS_ENDPOINT [9]). Overall, we’d really appreciate feedback on what we’re building here. We’re also all ears if anyone has opinions on what they’d like to see in a product like this! [1] https://ift.tt/XH0eKcZ [2] https://ift.tt/XhBx9RA [3] https://ift.tt/eLl5UEf... [4] https://ift.tt/P3AvYcL... [5] https://ift.tt/EdlWiFy [6] https://ift.tt/kSxYjvN... [7] https://ift.tt/C83qeRY [8] https://ift.tt/U7FtqcD... [9] https://ift.tt/7gEkATs... https://ift.tt/jezqkFV February 1, 2024 at 09:02PM

Show HN: Vibescape – Immersive Meditations for Apple Vision Pro https://ift.tt/dAKuVnl

Show HN: Vibescape – Immersive Meditations for Apple Vision Pro Hey folks, back with a new release! I'm very happy to share with you my day one immersive meditation app for Apple Vision Pro. It's called Vibescape, and it's available today! This first version features a series of meditative vignettes, shot on Spatial Video, on location in the Pacific Northwest. Dramatic Douglas Fir stands sway in a winter storm. Ripples undulate in pools of water in a 19th century quarry. Icy-ASMR in a fern covered forest. You can also set up a custom meditation timer, either silent or from a selection of deep ambient noise, and transport yourself to truly unique immersive environments. It was a lot of fun building this – from braving an ice storm to capture these vignettes for you, to developing something once again for a brand new platform. It was almost 15 years ago I took that leap when creating Polychord for iPad. Similar vibes. Hope you check it out, and let me know what you think! Lots planned for version 2, but hearing what would excite you the most would make a huge difference. https://ift.tt/tXH4OJL February 2, 2024 at 10:02PM

Show HN: Shotune – Online screenshot editor and app mockup generator https://ift.tt/5TwuBGr

Show HN: Shotune – Online screenshot editor and app mockup generator https://shotune.com February 2, 2024 at 12:18AM

Show HN: The Super Programmer – A colorful introduction to engineering https://ift.tt/XYtdUJy

Show HN: The Super Programmer – A colorful introduction to engineering I have started writing an unusual book discussing various topics in computer science by implementing them from scratch. I would like to know your opinion on it! WARNING: It's a very draft version of it! https://keyvan.me/tsp February 2, 2024 at 02:54AM

Show HN: Fixkey is a keyboard-focused AI copilot for writing https://ift.tt/WeNMqnZ

Show HN: Fixkey is a keyboard-focused AI copilot for writing Demo: https://www.youtube.com/watch?v=sRFOWNpb3U4 Imagine having the CMD+K functionality of Cursor.sh but instead of code you edit natural language. *Introducing Fixkey:* - Native Swift macOS app (no Electron) - Keyboard-centric - Select common prompts with keyboard shortcuts - Press one shortcut to select and fix the current paragraph - Create custom prompts just in time - Works in every application on macOS (Apple Notes, Obsidian, Notion, Gmail, Slack…) - Support for local running models (Beta) *Why not using Grammarly?:* I always feel that traditional grammar correction tools like Grammarly distract me from my flow of writing and thoughts by requiring me to actively select words to autocorrect with my mouse. Fixkey introduces a new mental model for writing; Just hammer down your thoughts and fix your sentence with one shortcut. Using this method boosted my typing speed from 90 to 120 words per minute. Typing feels effortless. I was able to write this paragraph without looking at my screen, just focusing on what I want to say. https://www.fixkey.ai/ February 2, 2024 at 01:44AM

Show HN: Spliit – FOSS alternative to Splitwise, with receipt scanning https://ift.tt/RjB8DoE

Show HN: Spliit – FOSS alternative to Splitwise, with receipt scanning https://ift.tt/3RqK5km February 2, 2024 at 12:34AM

Show HN: Some blind hackers are bridging IRC to LMMs running locally https://ift.tt/ZboPRke

Show HN: Some blind hackers are bridging IRC to LMMs running locally https://ift.tt/XsCWlzp February 1, 2024 at 01:20AM

Show HN: Samsung NVMe Developers AMA https://ift.tt/lVWYpMk

Show HN: Samsung NVMe Developers AMA https://ift.tt/uGeQXnk February 1, 2024 at 12:32AM

Show HN: Telescope – Hassle-free company research https://ift.tt/p8BGo0X

Show HN: Telescope – Hassle-free company research Hey HN. I recently started a company and found myself constantly doing company research for competitors, prospective customers, and outbound leads. As an engineer, I found it challenging to figure out where to get up-to-date company information as well as tedious needing to visit multiple sites often. I built Telescope to solve that problem. Under the hood, Telescope performs multiple search queries the same way I would and synthesizes the results for me. This is very much a WIP but I would love for you to try it out and let me know what you think. Over the next couple of weeks, I plan on continuing to improve Telescope and add more features. Cheers :) https://ift.tt/W17ti63 January 31, 2024 at 06:55PM

Show HN: Privacy-first cross platform spreadsheet pipeline app https://ift.tt/4cgizHe

Show HN: Privacy-first cross platform spreadsheet pipeline app In my previous role at a small startup, I frequently developed simple scripts to assist recruiters and marketing professionals in handling data processing tasks on Excel or CSV files. These tasks were typically straightforward and repetitive, stemming from the periodic export of data. This experience sparked the idea to create a straightforward tool dedicated to such functionalities(also mobile friendly, as they occasionally need to process data on their smartphones). There are powerful tools like Power Query and Tableau, but they often prove too complex for non-technical users to navigate effectively. Additionally, ETL tools that support CSV/XLSX formats often come with a high price. That's why I build Tablesmith, an easy-to-use and free spreadsheet automation tool that empowers anyone to automate their data-related tasks with ease. Furthermore, I also include AI autofill capability, which I believe would be useful. https://tablesmith.io/ January 29, 2024 at 08:24PM

Show HN: Sankofa – Browser extension to semantically search your history https://ift.tt/wR8gilB

Show HN: Sankofa – Browser extension to semantically search your history Hey there HN! I lead Product at Vectara. Some of us read a lot of articles on the web (like those on HN) and we were desperately trying to recall the text we read -- using semantic search because we might not have remembered the exact text we read. (Or ask questions about the content -- ChatGPT style.) Sankofa is a new browser extension that can automatically index web pages you visit and let you search / ask questions about that content. We built it using Vectara's retrieval-augmented-generation (RAG) platform and hope this is useful to folks. This is an initial release: we would love to hear any feedback and suggestions! https://ift.tt/yd0wHEr January 31, 2024 at 03:09AM

Show HN: Get notified when your desired Twitter handle is available https://ift.tt/1XKAC2P

Show HN: Get notified when your desired Twitter handle is available https://handlespot.pro January 31, 2024 at 01:03AM

Show HN: Browser Automation in a Bookmarklet https://ift.tt/MWbvyEG

Show HN: Browser Automation in a Bookmarklet Automate your browser in plain JavaScript because most such tools are not free, have an arcane API (Selenium) or a weird DSL. https://ift.tt/JHCw3uK January 30, 2024 at 02:52AM

Show HN: The Next Round – Weekly newsletter showcasing startups raising capital https://ift.tt/87Ya4so

Show HN: The Next Round – Weekly newsletter showcasing startups raising capital https://ift.tt/7iJTB54 January 30, 2024 at 02:31AM

Show HN: Boardzilla, a framework for making web-based board games https://ift.tt/v7VuqfL

Show HN: Boardzilla, a framework for making web-based board games Show HN: Boardzilla, a framework for making web-based board games Tldr: We’ve made a framework for web-based board games. You can try out some games over at https://boardzilla.io , or you can take a look at https://ift.tt/UAHi5xL to learn more about how to develop your own game. Source is available at https://ift.tt/EF2SDpm Hey y’all. My brother and I have made a framework for board games. During the pandemic we started to look at BGA but got discouraged by how old-fashioned the tools were and how cumbersome the development process was. We set out to make our own framework where you could use the same code for both the client and server. Our hope is anyone familiar with Typescript and CSS could code up a game without worrying about state management, persistence or networking. It’s still very much a wip, and we're rapidly adding features and games. But we’ve got our first draft of developer docs done, and we've put up a few games we've developed to showcase and test out the platform. Source for the games and framework is available on Github, and we’re excited to code more games and hopefully encourage other people to try it out. Happy for any feedback. https://ift.tt/ExopNlG January 30, 2024 at 12:42AM

Show HN: WhisperFusion – Ultra-low latency conversations with an AI chatbot https://ift.tt/R3jJV7N

Show HN: WhisperFusion – Ultra-low latency conversations with an AI chatbot WhisperFusion builds upon the capabilities of open source tools WhisperLive and WhisperSpeech to provide a seamless conversations with an AI chatbot. https://ift.tt/RjLAaHO January 29, 2024 at 07:53PM

Show HN: Animating the World of Van Gogh with Stable Diffusion and AnimateDiff [video] https://ift.tt/Wy520xr

Show HN: Animating the World of Van Gogh with Stable Diffusion and AnimateDiff [video] I know I'm very late to the game but tried to realize Van Gogh's work with AI. Workflow is quite straightforward, generated all the video samples through Automatic1000's Web-UI by leveraging SD1.5 + Motionv3 in AnimateDiff. Rendered everything on my RTX 3080TIM laptop. Took me decent 40 mins for different experiments and generations. https://www.youtube.com/watch?v=yntoe0i6QxY January 29, 2024 at 11:30AM

Show HN: 12-colored visual interactive music theory for pop/rock MIDI (+Github) https://ift.tt/Hs8kp6B

Show HN: 12-colored visual interactive music theory for pop/rock MIDI (+Github) I'm sharing an early prototype of my open-source interactive book and MIDI viewer. My approach is to annotate a tonic and phrasing in each file, so that chords become visible as 3-4 color bundles after a bit of training. This radically simplifies seeing and hearing chords, so that you can rapidly browse through many arrangements and study Western harmonic/arrangement language If you don't have a touchpad, a horizontal scrolling can be done via shift+mouse wheel (generally on the web). Also, I have a second color scheme that I tried to optimized for people with color vision deficiencies. My big dream now is to have all piano rolls in DAWs support 12-coloring (in any color scheme really), so that the music can be seen as less complex, less gatekeeped and less entangled. It's not as hard as I've seen it before. Source code: https://ift.tt/75m6ixB It currently doesn't play music from Russia or Türkiye (=requires a VPN), because I rely on corsproxy.io internally which blocks access from those countries. I plan to rehost stuff on S3 soon to fix that. Also, it's more performant in Chrome than in Safari - audio clicks less. === Backstory: I quit Whatsapp in 2021 to focus full-time on studying music theory. Along that I've assembled a list of resources to see the frontier: https://ift.tt/zAq910B My biggest inspiration is Hooktheory - an interactive book that teaches how melody and chords interact in Western pop music. After it I wanted to study how the rest of the arrangement works - what the bass line is doing, how is melody doubled, what chromatic chords are possible, are there any functional pre-dominants and dominants in mixolydian or dorian etc. I wanted to focus on music for which the complete arrangement is clean and available. This is early chiptune (NES/Genesis) OSTs and MIDI arrangements (primarily created in 1990s). As I plugged MIDIs into my front-end, I discovered that the harmonic analysis - the cornerstone of studying Western harmony - can be done by eyes in real-time. That is, if you color the notes consistently, the chords start to stare at you, sharply and memorably. I'm intrigued by latest shifts towards corpus studies in music theory and I'm generally happy that nowadays the research is not just about classical music anymore. At least in the West. https://rawl.rocks/ January 28, 2024 at 07:07PM

Show HN: PalWorld Breeding Calculator https://ift.tt/Qv34VOq

Show HN: PalWorld Breeding Calculator https://ift.tt/eFHmT5a January 27, 2024 at 01:38PM

Show HN: Pong Wars https://ift.tt/AMXjxOT

Show HN: Pong Wars https://ift.tt/xyNT7Mb January 28, 2024 at 01:49AM