Show HN: I made an app to learn guitar scales https://ift.tt/82KOnh6

Show HN: I made an app to learn guitar scales Hi, I'm Sergei, the creator of Guitartonic. I've been playing guitar for 17 years, but never really learned how to improvise. Most of the elaborate music theory PDFs I found online overwhelmed me, so I built a simple tool to practice basic scales and modes. It worked so well that it even inspired my roommate to pick up his guitar again. The app has been live for a few months. I had moved on to other projects and almost forgot Guitartonic existed, until the website started getting organic traffic. I noticed that people were coming to the site (somehow, 90% of the traffic is direct) and staying for four to ten minutes on average. So someone was actually using it! I even received a few heartwarming messages from users saying Guitartonic rekindled their love for playing guitar. Yesterday, someone donated $25 to support my work, which motivated me to share the project here and ask for feedback. Fellow guitarists, how did you learn scales and improvisation? What helped you the most along the way? I'd love it if you gave Guitartonic a try and let me know what you think! https://ift.tt/DrGvapi April 30, 2025 at 12:55AM

Show HN: Auto-fix your GitHub PR issues with Proton for FREE https://ift.tt/CbGE7Fw

Show HN: Auto-fix your GitHub PR issues with Proton for FREE Hey HN! We just launched Proton, a GitHub app that listens to PR review comments and suggests code changes to address them. It creates a new PR based on top of your working branch, so you can simply review and merge. How is it different from other AI code review tools? Others focus on pointing out issues, whereas Proton focuses on addressing them. Although some of them can also suggest fixes, they tend to only work on nearby lines or within a single file. But real-world feedback often involves cross-file changes like “Let’s extract this to a separate component”, or “We should follow the same pattern of doing things in file X, Y and Z”. Proton has full repo context, so it can handle these kinds of feedback. Want to see it in action? Here’s a short demo: https://youtu.be/zDEfw-R2jWc , and there’s the PR shown in the demo video: https://ift.tt/maZpIX6 It’s free, takes two clicks to install, and works out of the box. Here’s the install link: https://ift.tt/bGi1tS0 We'd love to get some early users and hear your thoughts — reply here or email us at [support@proton.codes](mailto:support@proton.codes) Cheers! https://ift.tt/TGLUaW6 April 29, 2025 at 11:19PM

Show HN: ProKZee – An Open-Source Network Security Tool Written in Go https://ift.tt/dfGRDT2

Show HN: ProKZee – An Open-Source Network Security Tool Written in Go Hi HN! After several months of work, I'm excited to share ProKZee, a free and open-source network security tool built with Go and React using Wails framework. ProKZee allows developers, security researchers, and penetration testers to intercept, inspect, and modify HTTP/S traffic — similar to tools like Burp Suite, OWASP ZAP, and Caido — but with a fast native UI, modern UX, and some unique features. https://ift.tt/xvFlYiQ https://ift.tt/xvFlYiQ April 29, 2025 at 01:11AM

Show HN: Heart Rate Zones Plus – The first iOS app I ever developed https://ift.tt/VaMghNn

Show HN: Heart Rate Zones Plus – The first iOS app I ever developed https://ift.tt/MoXbnj7 April 29, 2025 at 12:12AM

Show HN: Zotero-MCP – Connect Your Research Library with Your AI Assistant https://ift.tt/dQEWqNw

Show HN: Zotero-MCP – Connect Your Research Library with Your AI Assistant Hi all! I forgot to share my project here, but since it just got over 1.2k calls on smithery, I figured that people here may be interested in giving it a try! Essentially it allows you to easily connect your zotero library to any LLMs through a MCP client, enabling the LLMs to read the papers that you collected, your notes, and the annotations - and it works both on your local and cloud library. Check this out! I would love to hear your feedback. :) https://ift.tt/U0yh8Zb April 29, 2025 at 12:06AM

Show HN: Announcing Nest2D.dev: Open-Source Server-Side Nesting for DXF https://ift.tt/qrs1uG0

Show HN: Announcing Nest2D.dev: Open-Source Server-Side Nesting for DXF https://ift.tt/KyfNPx6 April 27, 2025 at 11:39PM

Show HN: Start working in AI research by using these project ideas from ICLR2025 https://ift.tt/QJbPuOp

Show HN: Start working in AI research by using these project ideas from ICLR2025 https://ift.tt/uphFTw3 April 27, 2025 at 10:41PM

Show HN: Daily Jailbreak – Prompt Engineer's Wordle https://ift.tt/ah94RVY

Show HN: Daily Jailbreak – Prompt Engineer's Wordle I created a daily challenge for Prompt Engineers to build the shortest prompt to break a system prompt. You are provided the system prompt and a forbidden method the LLM was told not to invoke. Your task is to trick the model into calling the function. Shortest successful attempts will show up in the leaderboard. Give it a shot! You never know what could break an LLM. https://ift.tt/ShXTKwk April 28, 2025 at 12:02AM

Show HN: Gemini Document Processor – Generate Th Summaries from PDF/ePub with AI https://ift.tt/7Sg8YbN

Show HN: Gemini Document Processor – Generate Th Summaries from PDF/ePub with AI Hello HN! I'd like to share Gemini Document Processor, an open-source tool I've developed. This tool uses Google's Gemini AI (their latest API) to create high-quality Thai language summaries from PDF and EPUB files. Key features include: - Support for both PDF and EPUB files - Intelligent chunking for efficient Gemini API processing - Automatic image extraction from documents - Direct integration with Obsidian (export directly to vault) - Smart retry system when errors occur (switches models/increases timeouts) - Real-time progress tracking via web interface I built this tool because I needed to read many English documents and wanted detailed summaries in Thai. If you frequently read long documents or want to build a knowledge base from multiple sources, this tool could save you significant time. The output is a well-formatted Markdown file with images and metadata, ideal for storing in Obsidian, Notion, or other PKM systems. Try it by cloning the repo and running it with Python (requires a Google Gemini API key). Feedback, suggestions, and contributions are very welcome! https://ift.tt/usKB8UL April 26, 2025 at 06:20PM

Show HN: Install CLI Apps via Plain HTTP – No Docker, No Binaries, Just Curl https://ift.tt/gnvlhat

Show HN: Install CLI Apps via Plain HTTP – No Docker, No Binaries, Just Curl Tired of bloated installers and complex DevOps pipelines? I built PPORT — a terminal-based messenger — to demo a crazy simple idea: 1. Instant CLI delivery over HTTP 2. Just curl or irm, nothing else 3. TypeScript on the fly via Deno 4. Live deployment without Docker or builds How it works: Visit https://pport.top Run one command (curl -fsSL pport.top | sh) PPORT streams scripts and source files dynamically based on your client (curl, browser, Deno) No packaging. No compiling. No friction. Source on GitHub: https://ift.tt/hFn310x Curious what else could be built with this approach? Would love to hear your ideas. https://pport.top April 26, 2025 at 10:21PM

Show HN: Rocal UI – A simple template engine with Rust https://ift.tt/bkg3OrN

Show HN: Rocal UI – A simple template engine with Rust https://ift.tt/B2VXORZ April 26, 2025 at 11:56PM

Show HN: Lucidia, a WebGL visualizer inspired by Drempels https://ift.tt/kwPrABo

Show HN: Lucidia, a WebGL visualizer inspired by Drempels Made with ChatGPT, open source at https://ift.tt/CTDp1wU https://ift.tt/HKTXbgz April 26, 2025 at 12:28AM

Show HN: Open-Source, Self-Hostable Rate Limiting API https://ift.tt/QA29TvL

Show HN: Open-Source, Self-Hostable Rate Limiting API https://ift.tt/SGZyUBY April 25, 2025 at 11:03PM

Show HN: Claude Code with GUI and Block Based Prompt Editor (MIT) https://ift.tt/oebzdiw

Show HN: Claude Code with GUI and Block Based Prompt Editor (MIT) https://ift.tt/GpEHDxC April 25, 2025 at 10:28PM

Show HN: I Added Translation to My RSS Reader Project https://ift.tt/czZGYUm

Show HN: I Added Translation to My RSS Reader Project https://ift.tt/mYBFTQR April 25, 2025 at 01:59AM

Show HN: Interactive map of Palo Alto police record log PDFs https://ift.tt/6wauj3n

Show HN: Interactive map of Palo Alto police record log PDFs Got this idea when a landlord suggested I check the police logs when I asked about neighborhood safety during house hunt. I built this for myself to easily look up an address and see nearby police events. The data covers incidents from February to April 2025. Data Source: https://ift.tt/eobNEOZ... Source Code: https://ift.tt/ueasQOi (lot of slop as it was vibecoded) https://ift.tt/fNK8vy1 April 25, 2025 at 01:37AM

Show HN: GitNote- Online MD note editor that syncs to GitHub https://ift.tt/75PK6Jk

Show HN: GitNote- Online MD note editor that syncs to GitHub https://ift.tt/PBWxF9z April 25, 2025 at 01:25AM

Show HN: I reverse engineered top websites to build an animated UI library https://ift.tt/JA1IHzD

Show HN: I reverse engineered top websites to build an animated UI library Looking at websites such as Clerk, I began thinking that design engineers might be some kind of wizards. I wanted to understand how they do it, so I started reverse-engineering their components out of curiosity. One thing led to another, and I ended up building a small library of reusable, animated components based on what I found. The library is built in React and Framer Motion. I’d love to hear your feedback https://reverseui.com April 24, 2025 at 11:17PM

Show HN: Body Controlled 3D Dino Game https://ift.tt/WjQfRs1

Show HN: Body Controlled 3D Dino Game Hey HN, I am Niko. I've built this 3D Dino Game In browser using tech like three.js and MoveNet (tensorflow). Basically, it's a normal 3D dinosaur game with a twist: you need to actually perform actions irl to avoid obstacles. Duck to crouch, jump to jump, raise left hand - go left, raise right hand - go right. Game is using your phone/laptop camera to track your body movements and perform in-game actions. PS. Game is 100% client side and I don't record/track/use/save any of your data Hope you find it worth playing. (better play on PC) It's a 100% FREE browser game with no login! Please feel welcome to DM feedback or reply or anything! https://ift.tt/80BcH4Q April 23, 2025 at 02:58PM

Show HN: Durable Python Workflows https://ift.tt/26SIXJU

Show HN: Durable Python Workflows https://ift.tt/5wkjYis April 23, 2025 at 04:11AM