Show HN: I made a site to track 2024 U.S. election PAC winners https://bit.ly/4f3Cxby

Show HN: I made a site to track 2024 U.S. election PAC winners https://bit.ly/4e99phI October 28, 2024 at 08:02PM

Show HN: Trench – Open-source analytics infrastructure https://bit.ly/3C1sbKB

Show HN: Trench – Open-source analytics infrastructure Hey HN! I want to share a new open source project I've been working on called Trench ( https://bit.ly/3YmYmvy ). It's open source analytics infrastructure for tracking events, page views, and identifying users, and it's built on top of ClickHouse and Kafka. https://bit.ly/40ia0un I built Trench because the Postgres table we used for tracking events at our startup ( https://bit.ly/3YlvIel ) was getting expensive and becoming a performance bottleneck as we scaled to millions of end users. Many companies run into the same problem as us (e.g. Stripe, Heroku: https://bit.ly/3YqjP6H ). They often start by adding a basic events table to their relational database, which works at first, but can become an issue as the application scales. It’s usually the biggest table in the database, the slowest one to query, and the longest one to back up. With Trench, we’ve put together a single Docker image that gives you a production-ready tracking event table built for scale and speed. When we migrated our tracking table from Postgres to Trench, we saw a 42% reduction in cost to serve on our primary Postgres cluster and all lag spikes from autoscaling under high traffic were eliminated. Here are some of the core features: * Fully compliant with the Segment tracking spec e.g. track(), identify(), group(), etc. * Can handle thousands of events per second on a single node * Query tracking data in real-time with read-after-write guarantees * Send data anywhere with throttled and batched webhooks * Single production-ready docker image. No need to manage and roll your own Kafka/ClickHouse/Nodejs/etc. * Easily plugs into any cloud hosted ClickHouse and Kafka solutions e.g. ClickHouse Cloud, Confluent Trench can be used for a range of use cases. Here are some possibilities: 1. Real-Time Monitoring and Alerting: Set up real-time alerts and monitoring for your services by tracking custom events like errors, usage spikes, or specific user actions and sending that data anywhere with Trench’s webhooks 2. Event Replay and Debugging: Capture all user interactions in real-time for event replay 3. A/B Testing Platform: Capture events from different users and groups in real time. Segment users by querying in real time and serve the right experiences to the right users 4. Product Analytics for SaaS Applications: Embed Trench into your existing SaaS product to power user audit logs or tracking scripts on your end-users’ websites 5. Build a custom RAG model: Easily query event data and give users answers in real-time. LLMs are really good at writing SQL The project is open-source and MIT-licensed. If there’s interest, we’re thinking about adding support for Elastic Search, direct data integrations (e.g. Redshift, S3, etc.), and an admin interface for creating queries, webhooks, etc. Have you experienced the same issues with your events tables? I'd love to hear what HN thinks about the project. https://bit.ly/4foGt6G October 25, 2024 at 03:07PM

Show HN: Finstruments - Financial instrument library built with Python https://bit.ly/4eY8br2

Show HN: Finstruments - Financial instrument library built with Python finstruments is a Python library designed for modeling financial instruments. It comes with the core financial instruments, such as forwards and options, out of the box, as well as position, trade, and portfolio models. finstruments comes with the basic building blocks, making it easy to extend and build new instruments for any asset class. These building blocks also provide the functionality to serialize and deserialize to and from JSON, enabling the ability to store a serialized format in a document database. This library is ideal for quantitative researchers, traders, and developers who need a streamlined way to build and interact with financial instruments. https://bit.ly/4f1sB2a October 28, 2024 at 06:18AM

Show HN: Decentralized Twitter clone built on Ethereum blockchain https://bit.ly/40oW7KP

Show HN: Decentralized Twitter clone built on Ethereum blockchain https://bit.ly/40ihsFF October 27, 2024 at 02:41PM

Show HN: Mahjong Dark Dimensions: Mahjong Dimensions Game Online https://bit.ly/3UNVYgD

Show HN: Mahjong Dark Dimensions: Mahjong Dimensions Game Online Mahjong Dark Dimensions is a captivating mahjong puzzle game set in a mysterious and dark dimension. Solve the puzzles and uncover the secrets of the dimension. https://bit.ly/3UtFg5N October 27, 2024 at 07:55AM

Show HN: AI agents working together in a virtual podcast studio. NotebookLM alt https://bit.ly/4ffc4rP

Show HN: AI agents working together in a virtual podcast studio. NotebookLM alt Made this project in a couple of weekends after playing around with NotebookLM and seeing the hype for more projects like this. Let me know what you think! https://bit.ly/4eXd97b October 27, 2024 at 07:36AM

Music: Seed - Bless Me

This astonishing masterpiece is a vibe that won't be forgotten soon because it has alot of messages and melodies to pass.  

talented Nigerian melodic destination, songwriter, Seed”, is out with his debut single titled “Bless me” It’s a Ghetto_boy_prayer

 DOWNLOAD: Seed - Bless Me

Show HN: I built a paragraph rewriter that runs 100% in the browser https://bit.ly/4e2DiQV

Show HN: I built a paragraph rewriter that runs 100% in the browser https://bit.ly/48nEBsi October 26, 2024 at 03:29PM

Show HN: Jist searches JSON 3x faster than jq https://bit.ly/4hzYkth

Show HN: Jist searches JSON 3x faster than jq Hi HN, jist is a JSON path search tool that feels like accessing a JavaScript object. It’s 3x faster than jq for the same use case, and over 2000x more memory efficient when searching a 3.3GB file for the last element (jist reads data in chunks so has constant space use). It doesn’t implement pattern matching yet. A feature I’m looking to add is generating a full JSON schema using the same streaming approach so stay tuned! Any feedback and feature requests are more than welcome https://bit.ly/3YBVAEa October 26, 2024 at 02:25PM

Show HN: Simple Text Blog https://bit.ly/4fle7de

Show HN: Simple Text Blog https://bit.ly/4faPpfI October 26, 2024 at 01:40PM

Show HN: Create Waitlist Pages https://bit.ly/3NGS1Gs

Show HN: Create Waitlist Pages I decided to launch FastWaitlist because I was facing a problem with validating my own product ideas. I noticed the lack of tools that: 1. Let you create waitlist pages fast (always faced complicated page builders) 2. Have conversion optimized templates (we have 5 and we're planning to add more) 3. Support custom domains That's exactly why I launched FastWaitlist. It has solved a huge pain point for me and I hope it'll do the same for you. https://bit.ly/3NDpHoi October 25, 2024 at 07:17PM

Show HN: JSON-qs – JSON in query strings, human-readable, compact https://bit.ly/3YCsB36

Show HN: JSON-qs – JSON in query strings, human-readable, compact https://bit.ly/4e3nUUa October 25, 2024 at 01:16AM

Show HN: Pneumatic – free open-source workflow software https://bit.ly/3NBJtRd

Show HN: Pneumatic – free open-source workflow software Hi HN, I'm one of the co-founders of Pneumatic, an enterprise-grade workflow software designed for small, fast-growing startups. Yesterday, we released Pneumatic under the Apache 2.0 license. If your team has used Trello, Basecamp, or Asana before and you're now looking to implement a more structured, mature approach by building repeatable task sequences, you should try Pneumatic. Here's what Pneumatic offers: - Task sequences defined by templates. Design a template once and run multiple instances of a process based on this reusable template—manually, via API, or with a public share kick-off form. - An intuitive, user-friendly Workflow Template Editor. - Workflow conditions to skip tasks or create branches. - Dynamic task performer assignment: defined by the template or variable, based on conditions. - Email, mobile, push, and REST notifications for all major events, such as when workflows start/stop, tasks start/stop, mentions, and more. - Support for parallel tasks. And much more. Some of the most popular use cases include chains of approvals, employee or customer onboarding, software development and design processes, and content creation workflows for teams. I’d love your feedback and questions. You can reach me at anton.seidler@pneumatic.app https://bit.ly/3A3wTai October 25, 2024 at 12:17AM

Show HN: No more subscriptions. Find software you can buy once and own forever https://bit.ly/3UmE5Fh

Show HN: No more subscriptions. Find software you can buy once and own forever Do you have a one-time purchase software? Post it! https://bit.ly/3NEewf0 October 24, 2024 at 05:53AM

Show HN: RF Hunter – Find hidden cameras and other devices https://bit.ly/3YcS6qa

Show HN: RF Hunter – Find hidden cameras and other devices This project is an RF Signal Scanner built using an ESP32, AD8317 RF detector, and various other components. It's designed to detect and measure RF signals in the environment and display the signal strength on an OLED display. It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices. https://bit.ly/3NHg5J2 October 24, 2024 at 01:21AM

Show HN: Karl – A virtual friend you can text https://bit.ly/4fglJh0

Show HN: Karl – A virtual friend you can text Hi HN! We're excited to introduce "Karl" – a virtual friend you can text to share what's on your mind. We created Karl because we found it incredibly helpful to have a sounding board and someone I could talk to anytime, day or night. Karl isn't meant to replace real friendships but rather to act as a mediator and an additional point of contact. He remembers important details you share and can connect the dots between past events and current decisions. Anyone can message Karl by texting +1 (844) 619-7958 . There’s no separate app or website – just text to start a conversation. The first ten messages are free, after which Karl charges 10 per month to continue (and to help cover Karl's dining habits). On the backend, we primarily use 4o (OpenAI) to handle message flow and identify important memories. All the code for LLM calls, context management, and tool use is custom-built, as we found frameworks like Langchain to be too much overhead. Moving forward, we plan to run a fine-tuned 4o-mini model and experiment with other providers. Texting is powered by Twilio (and FYI – getting a non-sandbox phone number is quite a process), and we use Postgres (via Supabase) to store conversations and context. The entire service runs on Render. We’re also working on new features like proactive check-ins and smarter memory handling. Karl is currently in early alpha. We'd love feedback from the HN community at hello@heykarl.xyz. Please say hi, and we hope you have some great conversations! October 23, 2024 at 11:44PM

Show HN: Stable Diffusion 3.5 – Advanced AI Image Generator https://bit.ly/3Y9p9LO

Show HN: Stable Diffusion 3.5 – Advanced AI Image Generator Stable Diffusion 3.5 uses advanced AI to transform text prompts into beautiful, original images. Perfect for artists, designers, and creative professionals. https://bit.ly/3NytFyF October 23, 2024 at 07:46AM

Show HN: I made a list of free high DA site which gives free backlinks https://bit.ly/3Yx87bW

Show HN: I made a list of free high DA site which gives free backlinks SaaSDirectories.fyi is a directory of free saas directories out there. You can submit your saas on these sites and get free backlink and relevant traffic https://bit.ly/4fdZMiR October 23, 2024 at 05:37AM

Show HN: Ryde, a Rust Web Framework https://bit.ly/48mENIj

Show HN: Ryde, a Rust Web Framework https://bit.ly/3AlIRvM October 23, 2024 at 03:10AM

Show HN: I built a Photoshop expert for clothing brands https://bit.ly/4hhpzIH

Show HN: I built a Photoshop expert for clothing brands Hey guys, my name's Chris. The feeling of shipping your first app is incredible. This year, in February I paused my main business (a digital agency) and decided to learn full stack. Yep, not the wisest thing to do. Agree. But I was always passionate about apps. Most of my clients were startups. And gosh, I loved talking to founders. I remember first time running 'npm run dev' in my IDE and seeing the Next screen on my localhost. Great feeling. So I spent 3 months building my first app - Delle. It helps small clothing brands to create professional photo shoots for their clothing line. back in 2023, I had a few eComm clients. And I've noticed they spend a lot of money into professional photo shooting. Most importantly, they waste time and effort on finding a good studio, hiring models, scheduling.. And while there are plenty of tools that integrate with VTON (Virtual Try On) technology, I kept Delle a bit different: 1. I wanted to allow users to generate images for different fits, like S, L, XXL. This would help their customers to see how the product would look on them. It would also help with the store conversions. 2. Realistic models: the competing apps lack that human touch. You can easily spot it's AI. You can go ahead and give Delle a try here: https://bit.ly/4h9lV3L If you'll have questions around the tech stack or simply want to share your feedback/bugs, please let me know. If would mean a lot to me. October 22, 2024 at 11:39PM