Show HN: CriticalPath – Advanced Profiler for Android https://ift.tt/ETqhj28

Show HN: CriticalPath – Advanced Profiler for Android I am excited to announce the project I am working on: an advanced mobile app profiler for Android. Its primary purpose is to optimize app performance and make it faster. Additionally, it serves as an excellent debugging tool. The main distinction between existing tools, such as Perfetto and the Android Studio Profiler, is the ability to synchronize the trace with a video recording of your app. This allows you to see the app's UX alongside what's occurring within the app to identify what's causing slowdowns. Another key feature is the ability to click on any slice and view the cross-thread execution path of function calls, tracing from a user action to the selected slice. This makes it easier to identify performance regressions: slow functions, suboptimal network calls, or functions clogging the main thread. Additionally, we have implemented smart code instrumentation that has a minimal impact on performance. I am one of the developers of this tool. The project is in active development and are eager for feedback from Android developers. You can try it out at https://crpath.app https://crpath.app February 29, 2024 at 02:22AM

Show HN: Finetune a Gemma 2B model for codegen https://ift.tt/i3eA5u8

Show HN: Finetune a Gemma 2B model for codegen Sharing a prototype of finetuning Gemma2b for a codegen usecase! https://ift.tt/mDU2uRW February 29, 2024 at 01:57AM

Show HN: Statichost.eu – privacy-first static site hosting https://ift.tt/iMN3B58

Show HN: Statichost.eu – privacy-first static site hosting Excited to announce StaticHost.eu - a privacy-first static site hosting service! No logging whatsoever apart from usage metrics, and hosted on Hetzner who own and operate their own data centers. Based on the git workflow where updates trigger a clone-build-deploy-publish. Other notable characteristics: - Clones from any git repository, even a folder on an SSH box - Can use any Docker image to perform the site generation (i.e. build) The classic story of something I built for myself that eventually became a something more. Still not ready, but when is such a thing ever ready... Feedback and questions extremely welcome! :) https://ift.tt/GiuFTCo February 29, 2024 at 12:06AM

Show HN: Hey – Open Source Decentralized Social Media https://ift.tt/Kamh8l5

Show HN: Hey – Open Source Decentralized Social Media The garden gates are officially open! Dive into Hey and explore a space where connections grow. https://hey.xyz/?signup=true February 28, 2024 at 02:08AM

Show HN: Velvet – Data platform with an AI SQL editor https://ift.tt/Ash4v7W

Show HN: Velvet – Data platform with an AI SQL editor Hi HN — Chris here, Velvet co-founder. I’m excited to share what we’ve been working on, a platform to unify disparate data sources into a single queryable interface. We built Velvet to solve our own problem. We’re a small team and wanted to combine the data from various services (Stripe, Supabase, etc.) into a layer that would help us make product decisions and ship new features faster. On the surface, it may look like a simple text-to-SQL data notebook. But under the hood, it’s an accessible and interoperable backend-as-a-service that your entire product team can utilize. Connect to your databases, sync third-party APIs, capture webhook events — then write data directly, spinning up queues and analytics databases on the fly. The magic of our tool is in unifying data sources into a native SQL layer. We leverage ClickHouse to enable you to write joins across datasets you’ve never been able to pair together before (without significant effort). We layer on an iterative SQL query interface to help you write and refine queries with the assistance of AI. Our product works great for individual contributors and solo devs, but we’ve also built in collaboration features so data access doesn’t get siloed. Your saved queries can be turned into API endpoints and used directly in feature development. This makes the workflow of shipping new features really fast! Ping me if you want to early access to this feature. Watch our video demo ( https://youtu.be/CW5TXMCyfC0 ) and try the live demo in our app. Feel free to email me directly (chris@usevelvet.com) with questions and feedback. Thanks for checking out Velvet! https://ift.tt/zyDf03C February 27, 2024 at 11:41PM

Show HN: Scribbler - An open source notebook tool for JavaScript https://ift.tt/zxOoirC

Show HN: Scribbler - An open source notebook tool for JavaScript Scribbler is a tool to do experimentation in JavaScript using a notebook kind of environment. It runs in the browser without the need for a backend. It is deal for learning and experimentation in JavaScript. USP of Scribbler are: no login, no node/npm, can load ES 6 modules. Check the website at: https://scribbler.live . The web-app is available at: https://ift.tt/20jEamB . Scribbler has been built to satisfy a need for doing experimentation. Jupyter Notebook is very popular amongst python developers and data scientists for experimentation. It gives a simple interface for experimenting in python for testing code or for experimental analysis. Jupyter Notebook provides this application by running what is known as a “kernel” in the backend and giving back the results to the ui for display. It is an open source and free to use tool. Thus it has become extremely popular. As it is in Python, it requires installation of python environment and the libraries to use the tool. There are fully hosted alternatives like Google Colabs, where one can experiment in Python without installing anything. There is no similar open source tools for Javascript. There are online tools like jsfiddle/codepen etc but none that can be downloaded and used as a free tool or embedded on other solutions. Pure Javascript and JS libraries can ideally run without the need for a backend code like node.js or Python. Javascript is built to run by default in the browser. Optimization of the browser tech by Chromium (i.e. V8) and Firefox has ensured Javascript in the browser is fast and efficient. Thus we can build a good notebook tool using just front end technologies. I’ve been looking for such a solution for quite sometime mainly to test out some of the open source JS libraries and also for building some new open source projects. As I couldn’t find any solution I have built a simple tool to run javascript in notebooks. I call it Scribbler (so much for creativity). It is available as an open source solutions — free to use and modify. The source code is available at: https://ift.tt/yNst8U4 It does not require any backend technology. Users can download and use it in the file system or host it in webserver to use it on the internet. I have used Github Pages to host it. As it does not require backend, I need not buy/host a server to do that (ain’t it beautiful?). JavaScript can be used for a variety of experimentation. I’ve learnt a lot about Dynamic systems while using Scribbler to do simulations. It has also helped me in understanding some concepts of decentralized finance. I’ve also used Scribbler to solve some equations using numeric methods. Given the dynamic nature of JavaScript and its close integration with the UI, one can use it for building charting/dahsboarding tools. Scribbler can infact be even used for data science and machine learning. JavaScript has a vibrant community with a wide range of libraries available. Thus the usecases of Scribbler are limitless. I hope as more people start using Scribbler, there will be more and more applications including interactuve data science, Generative AI, scientific simulations, financial/economic applications, decentralized computing etc. Happy experimenting!! https://ift.tt/20jEamB February 27, 2024 at 10:17PM

Show HN: I built a tool to help you search for CivitAI's models by art style https://ift.tt/XYQudib

Show HN: I built a tool to help you search for CivitAI's models by art style https://ift.tt/4dVe52Y February 27, 2024 at 12:38PM

Show HN: Middle Class Text Editor https://ift.tt/CiMkp9o

Show HN: Middle Class Text Editor This is an implementation of slack-style mentions in a plain HTML textarea. Consider something like the caption for an image on Instagram. There is more or less no rich text functionality, except for the ability to tag people. There's no reason you should have to import a huge rich text editor library to implement just that feature - it's completely doable with just a textarea. This is proof of concept demonstrating that. https://ift.tt/zwjIa3B February 27, 2024 at 12:28AM

Show HN: Teraace: Product Analytics Beyond Numbers https://ift.tt/VR3QJP8

Show HN: Teraace: Product Analytics Beyond Numbers Profitable growth relies on understanding user behavior. Discover the why, not just the what. Traditional analytics skim the surface, falling short of capturing the narrative 'why'. Event tracking quickly becomes cumbersome and hard to keep up with. Whether your growth is sales or product-led (PLG), use Teraace to accelerate activations, optimize onboarding, or target training. Teraace harnesses machine learning to transform user behavior into a clear visualization of the actual buyer's journey. Crucial insights even at low user volumes. Private and secure data ingestion methods include an easy one-line script for automatic interaction capture, integration with Segment for streamlined data flow, or send your own direct batches from Mobile, App, or Web through our secure API. Uncover hidden patterns in user behavior. By joining our free beta, you gain early access to tools that will evolve to predict and influence user journeys, with a commitment to maintaining fair and predictable usage-based pricing. https://www.teraace.com February 26, 2024 at 11:46PM

Show HN: Nekoweb – a retro static web hosting https://ift.tt/ZXFQ0cm

Show HN: Nekoweb – a retro static web hosting https://nekoweb.org/ February 26, 2024 at 02:33AM

Show HN: Continuous-eval – Granular evaluation of GenAI pipelines https://ift.tt/PtCLhxn

Show HN: Continuous-eval – Granular evaluation of GenAI pipelines Hi HN - we are the creators of “continuous-eval”, an open-source tool to test and evaluate generative AI apps. "Continuous-eval" came from our efforts to measure, validate and improve the reliability of a finance AI copilot we were developing for banks. End-to-end evaluation was not enough for us. We wanted to have granular evaluations that help pinpoint the bottlenecks and identify what / how to improve. We’ve since developed more metrics and made the framework more flexible so it can evaluate components like agent tool use, code change, retrieval steps, etc. Let us know what you think of our approach to GenAI App evaluation. https://ift.tt/oPqb51D February 26, 2024 at 12:11AM

Show HN: Task manager with bear notes style tagging system https://ift.tt/m9vDo8C

Show HN: Task manager with bear notes style tagging system https://hyperaide.com/ February 25, 2024 at 02:27AM

Show HN: Psfiles – a CLI tool to monitor file system activity of a Linux process https://ift.tt/tDfwlhT

Show HN: Psfiles – a CLI tool to monitor file system activity of a Linux process Psfiles is a simple utility to view file system activity of Linux processes. Features: - start new process or attach to existing one and trace its file system activity, - output results to standard output or save results to file, - custom results sorting and filtering. https://ift.tt/9Er8psU February 25, 2024 at 01:08AM

Show HN: Logo Generation with AI https://ift.tt/4VeIN3w

Show HN: Logo Generation with AI https://mylogo.ai February 25, 2024 at 12:33AM

Show HN: I built jq-like scriptable tool to query CSV and JSON with SQLite https://ift.tt/7WXNc3j

Show HN: I built jq-like scriptable tool to query CSV and JSON with SQLite https://ift.tt/CmIvjyt February 24, 2024 at 11:49PM

Show HN: Consol3 – A 3D engine for the terminal that executes on the CPU https://ift.tt/zkohElB

Show HN: Consol3 – A 3D engine for the terminal that executes on the CPU Hi all This has been my hobby project for quite a few years now It started as a small engine to serve as a sandbox to try out new 3d graphics ideas After adding many features through out the years and re-writing the entire engine a few times, this is the latest state It currently supports loading models with animations, textures, lights, shadow maps, normal maps, and some other goodies I've also recently added voxel raymarching as an alternative renderer, along with a fun physics simulation :) https://ift.tt/MFR7Qw9 February 24, 2024 at 07:47AM

Show HN: Refractify: optical software against Myopia https://ift.tt/S1Vtba0

Show HN: Refractify: optical software against Myopia Last summer there was an Ask HN[1] about a Nature article that said bluring the blue and green color channels on screen may be good against early myopia development. The OP wanted such software and there was none available. So I quit my job and implemented this software, did a short video with a 3D artist about it. Turns out marketing is expensive, so I made an open source browser extension version too. How it works? There is a small neural network on the retina that tries to detect if the eye is far-sighted(most people are born far-sighted), and it is producing dopamine to slow or increase eye growth rate. It is not very smart, and if you do a lot of near-work it can think you are still hyperopic, causing further myopia progression. So, based on the refractive properties of the eye the software calculates the signal that would convince the retinal neural network that the eye is long enough, so it would produce dopamine, a known signal to stop axial eye growth. (based on myopic defocus LCA from the papers[2][3]) Some myopia control techniques work similarly, like MiSight and Hoya lenses. Since then I got a Neurobiologist co-founder and the goal is to best understand the Retinal NN to create the best anti-myopic effect that does not interfere with productivity. The effect can be tried live on the site. Also check out the github repo. Any questions suggestions welcome! [1] https://ift.tt/Ypie0zZ [2] https://ift.tt/E4doyHO [3] https://ift.tt/mlM6rgv... https://refractify.io/ February 24, 2024 at 12:17AM

Show HN: Babel – browse every book that will ever be written using simple math https://ift.tt/ubhp0rA

Show HN: Babel – browse every book that will ever be written using simple math https://ift.tt/kUIzawX February 23, 2024 at 10:37PM

Show HN: I made a multiplayer browser game https://ift.tt/4kRA5bq

Show HN: I made a multiplayer browser game http://boxfight.xyz/ February 23, 2024 at 01:31AM

Show HN: Learn Game Theory Optimal Poker Preflop with Spaced-Repetition https://ift.tt/ov5S12L

Show HN: Learn Game Theory Optimal Poker Preflop with Spaced-Repetition Hi HN, Sharing my poker preflop trainer product, a subset of my Live Poker Theory project. https://ift.tt/BQczFwm Live Poker Theory helps translate complex poker solver strategy to actionable strategies while playing and aims to make studying poker more efficient and more fun. While I usually try to focus on sharing it in poker communities, I saw a few poker articles frontpage this site so I figure it doesn't hurt to share it here. In case you don't know, before 2015 most poker software could only calculate "all-in equity" - if there was no game tree and players could only go all-in or fold. These days, solvers can calculate the full game tree, with a lot of assumptions, and we can use them to generate preflop charts. Sometimes people call this GTO (game-theory optimal) though I prefer the term "theory-based" to recognize how frequently you want to diverge from equilibrium even if you've studied it. Preflop refers to the first two cards you're dealt and the first round of betting which is a very fundamental street. Preflop is a good example of where I find it useful to study equilbrium even if you might diverge in practice - for example, once you understand how often a player should be 3-betting you (re-raising you after you've raised), if you know someone doesn't do it with hands like Ace-Five suited, you can fold hands you'd otherwise continue with. But it's helpful to understand a strong player should frequently be 3-betting Ace-Five suited. Some other info that might be helpful: 1) Rake refers to whether the "house" removes money from the pot which happens at most low-stakes games. Higher stakes games tend to be "time" games where the players simply pay an hourly fee so there's no effect of rake on the game itself. That also may be true at an unraked home game. 2) A straddle is an optional third blind that's often strongly encouraged as something everyone at the table does, and of course the charts are different with that third blind Spaced-repetition is something that only my trainer does, while it's a well understood concept on places like Hacker News, it's not well understood by the poker community. Even if you plan to make adjustments against certain players, there's good reasons to memorize a preflop chart. It helps you stay disciplined if you're "tilted" if you know what a reasonable baseline strategy is. It also helps you clearly define your postflop strategy, both while doing solver work and while playing. For examlpe, frequently the best river bluffs are the "bottom of our range", since our worst hands beneift the most from our opponent folding. But the "bottom of our range" is only clearly defined if our range is clearly defined, so if you've memorized your preflop range, you'll have a better understanding of your overall strategy postflop. One last important note, the charts are based on a 2.5x raise, so in a 2/5 game, a raise to $12, which is fairly rare to see in practice. If you have the solver raise 3x or 4x, the overall strategy is much much tighter. While this is more correct against perfect opponents, in practice frequently we're against weaker opponents and we'd rather play a looser range since we'll have an advantage postflop. By studying 2.5x, we keep a more reasonable loose range but still let the solver give us a reasonable baseline of hands to play. Currently, you can try out Tournament, 50 Big Blind stack depth, Raise First In without an account. With an account and for free, you can study cash or tournament "Raise First In" (whether to raise or fold if it folds to you), "Vs Open" (whether you raise, fold, or call if someone raises before you act), for free, for cash or tournaments. I have paywalled only cash game BB defend (if someone raises when you're in the big blind) for $10/mo or $59/year. I'm also actively adding more preflop charts, developing postflop content with spaced-repetition and a native mobile app. https://ift.tt/BQczFwm February 23, 2024 at 01:06AM