Show HN: MesoSim – DSL for Options Trading https://bit.ly/46oiL5u

Show HN: MesoSim – DSL for Options Trading Hello, I quit my engineering job in 2021 to fully focus on trading. After a year of limited success with stocks (algos floating around break-even) I started studying Options. It turned out that selling options (risk premia harvesting) is a sound approach for income generation. Back in the day there were no suitable automated backtesters to effectively study these trades, so I built one: I infused JSON with Lua to create a Job Definition which models how Options Traders build, adjust and hedge their positions. Fast forward to today, many retail traders and small hedge funds are using MesoSim on a daily basis. They executed over 120k backtests with strategies frequently reaching (and exceeding) Sharpe Ratio of 3. You can also try it after a free signup I'm doing my best to provide educational material via blog posts on public income trades, such as: - The weekend effect: https://bit.ly/3umUm2M - Volatility Hedged Theta Engine: https://bit.ly/47QTsu5 - NetZero Trade: https://bit.ly/46nL8Re - and more under our strategy library: https://bit.ly/3MZuEIi As of today the live part is running as a private beta and targetting to fix the annoyances around these complex instruments. Tech details: The solution is created using C# with Blazor as I prefer not to touch JS or TS. When I started I knew very little about C#, and nothing about blazor and dotnet (I'm a linux person). I have no regret choosing these technologies. During the process I also fell in love with Lua, a language I'll definitely use in the future. Please check it out and let me know what you think. Thanks for your kind feedback! https://bit.ly/40Q7vO8 November 24, 2023 at 08:28AM

Show HN: Lua Carousel, create little programs on desktop or mobile devices https://bit.ly/47qh7Sh

Show HN: Lua Carousel, create little programs on desktop or mobile devices https://bit.ly/3QT2for November 23, 2023 at 10:22PM

Show HN: SQL Interface to "AWS What's New" Using Datasette https://bit.ly/3sEmxtL

Show HN: SQL Interface to "AWS What's New" Using Datasette In time for AWS re:Invent 2023 next week, I’ve been building a site that provides a SQL interface to the AWS What’s New ( https://go.aws/3SWX9u0 ) feed for all time! It’s mostly an excuse for learning about a few technologies… DuckDB, Pandas, Datasette and brushing up on my Python. You can look at the example queries or write your own! https://bit.ly/3GbvbTJ November 24, 2023 at 01:57AM

Show HN: Go bindings to SQLite using wazero https://bit.ly/3MZ9KsO

Show HN: Go bindings to SQLite using wazero https://bit.ly/40POAD6 November 24, 2023 at 01:06AM

Show HN: New Version of MyOwnDB https://bit.ly/3G8rYEp

Show HN: New Version of MyOwnDB After nearly 5 years of development, I'm happy but also a bit anxious to Show HN the new version of MyOwnDB [1], a web application for data management at human scale. The app was initially published in 2006 using the then-recent Ruby on Rails, and incorporating fresh Ajax (YUI) and cloud (S3) technologies. Although the app stayed available all these years, it stagnated feature-wise because making changes appeared to become harder and harder due to some technology choices. Learning lessons from that [2], I decided to rewrite it, and chose F#[3] and WebSharper[4]. Those proved to be good choices, but now comes the harder part for me: promoting it and commercialising it. I think the app proposes some interesting features like: - multi-lingual UI - lots of help throughout the app - intuitive data types like file attachments, email address, URL, choice in a list, ... - a form embeddable in a website for data collection These are some points I'm currently working on regarding the commercialisation of the app (suggestions welcome!): - I'm working on proposing paid plans for the hosted app [5] (currently putting everybody on a free plan). - the code is published on Gitlab[6] under the AGPL license. Maybe proposing an additional commercial license would help, but in that case I'll need to use a Contributor License Agreement, which is an additional hurdle for outside contributors. Anyone having experience with that? - I might need to identify and focus on a niche for the app. Any suggestion? - I'm looking at easy migration from the hosted app to a self-hosted instance as I would like to build a business on trust. [1] https://bit.ly/40XP1eI [2] https://bit.ly/3MXMY4y [3] https://bit.ly/3Ga527N [4] https://bit.ly/3Gddcw3 [5] https://bit.ly/3GwgtqB [6] https://bit.ly/3sNBZDL https://bit.ly/40XP1eI November 22, 2023 at 11:10AM

Show HN: Cyberkitty – an experimental hybrid-GPT+Human long-form fiction editor https://bit.ly/3SVOfN8

Show HN: Cyberkitty – an experimental hybrid-GPT+Human long-form fiction editor NOTE: If you're one of the first people to see this, you can also access a running installation at https://bit.ly/47r8t5Z It'll run until I hit my GPT-4 budget limit, then stop working. Be warned that it's in single user, so nothing is private! ---- Last week I came down with a fever and decided to run some experiments on whether the new GPT could generate long-form fiction. Around the same time, I saw a HN comment about how technology gains have lead SWEs to work at higher levels of abstraction—and I thought “huh, why not writers?” Anyway so I was locked indoors for a week and a half and I spent it coding an answer that question. Most of the magic sauce here is just in making it feel really snappy and good to edit—making it easy for the human to collaborate with the objectively faster LLM. The underlying prompt engineering is cool, but it’s the feeling that you can do more than just shoot a prompt at ChatGPT and hope for a good result, or start writing and hope for a good autocomplete. Definitely gave me some ideas for future LLM experiences I want to try out, let me know what you think! https://bit.ly/3sQYJ5K November 22, 2023 at 11:11PM

Show HN: I made a React Native Boilerplate to ship mobile apps faster https://bit.ly/47qnJ2L

Show HN: I made a React Native Boilerplate to ship mobile apps faster https://bit.ly/47qXvgC November 21, 2023 at 08:44PM

Show HN: Open Source Cloud Costs Monitoring in Docker https://bit.ly/3RbLHZS

Show HN: Open Source Cloud Costs Monitoring in Docker OpenCost is an open source implementation for Kubernetes cost monitoring and now cloud cost monitoring for AWS, Azure, and GCP. The project makes all of this data accessible via an API and user interface. While discussing the idea of running OpenCost on platforms besides Kubernetes we realized that with this new Cloud Costs feature there are users who want API access to their cloud billing data without needing to run on Kubernetes. I opened the Issue OpenCost without Kubernetes #2268 and as luck would have it, we had our internal Hackathon last week. If you're not familiar with OpenCost, it's the open source CNCF project for monitoring Kubernetes and cloud spending. It's a Golang implementation of the OpenCost Specification for monitoring Kubernetes cloud costs. It has an optional web UI and you can also run it as a Prometheus metrics exporter. The code is all at https://bit.ly/3Rb7HnZ and you can learn more about the project at https://bit.ly/3QRG8OT https://bit.ly/3MR0uGY November 21, 2023 at 11:09PM

Show HN: Open-Source Library OpenAI/Azure Fallback Tool https://bit.ly/3RcDipn

Show HN: Open-Source Library OpenAI/Azure Fallback Tool We just launched an emergency OpenAI + Azure fallback and retry tool (literally OpenAI's APIs are down as I post this!): https://bit.ly/3ujTjRa This open source library helps you mitigate errors & downtime from @OpenAI's APIs by falling back to Azure (and vice versa). If you need expedited access to Azure, feel free to email me - I can get you connected to our Azure account executive! (Startups with funding ONLY please!) Hope this helps some people out there! https://bit.ly/3ujTjRa November 22, 2023 at 01:37AM

Show HN: A Geo-Distributed KV Store for Metadata Management https://bit.ly/40R44qy

Show HN: A Geo-Distributed KV Store for Metadata Management https://bit.ly/40LWEVk November 20, 2023 at 07:15PM

Show HN: Rethink note-taking and learning experience https://bit.ly/40N7uua

Show HN: Rethink note-taking and learning experience Hey! Just launched my new project. The cmaps platform was created after a long period of research and development in the field of education. It's known that human thinking is not linear, but rather associative. Without realizing it, we are constantly making connections between the things we learn. I believe that the best way to learn is to make these connections explicit. Instead of studying and taking notes in a linear fashion, we should be able to create a map of the concepts we are learning. This way, we can see the big picture and understand how everything is connected. I can say that cmaps is helping me a lot, mostly on my masters notes. That's why I believe it can help others too. Check it out at https://bit.ly/3sHk2qs Seriously, I would love to get some feedback! Thanks in advance! https://bit.ly/3MSQoFz November 21, 2023 at 12:04AM

Show HN: Rank the Top Developers by Location https://bit.ly/40L9tz7

Show HN: Rank the Top Developers by Location A tool I built to rank the top software developers by location, offering businesses and individuals the ability to identify leading software developers within their own region or an expansive view of global talent. https://bit.ly/40PbF94 November 20, 2023 at 02:45AM

Show HN: Signal ChatGPT bot, with image generation and TTS [video] https://bit.ly/47HHDGy

Show HN: Signal ChatGPT bot, with image generation and TTS [video] I had a few hours to kill today, so I made a ChatGPT Signal bot, because what better UI to talk to an artificial person than the one I talk to real people on? Tomorrow I aim to add speech recognition (send it voice notes and it'll understand what you're saying) and vision (send it photos and it can look at them). You can't use it yet (please don't spam my phone number), but if it's popular I might add a "bring your own key" mode. https://www.youtube.com/watch?v=Qwy2DrUJvIY November 20, 2023 at 01:41AM

Show HN: Serverless VPN App for Android. Unlimited Devices. Unlimited Data https://bit.ly/411zhHH

Show HN: Serverless VPN App for Android. Unlimited Devices. Unlimited Data Hello HN, Serverless VPN app for Android is fully open source including desktop apps: https://bit.ly/40LNB6Q Get it on Play Store: https://bit.ly/3R4iqR2... Feedback about product, pricing, website is most welcome! Thank you, Himanshu https://bit.ly/3sPZZ9f November 19, 2023 at 08:22PM

Show HN: torbb – Now with Tor, run BrowserBox as a hidden service instantly https://bit.ly/3sIjUHb

Show HN: torbb – Now with Tor, run BrowserBox as a hidden service instantly https://bit.ly/3G8TVM4 November 19, 2023 at 08:22PM

Show HN: "Awesome" Engineering Games (List) https://bit.ly/49Ui9aO

Show HN: "Awesome" Engineering Games (List) I've spent way too much time both playing and finding engineering-focused games, and haven't been able to find very detailed or comprehensive lists online. So I made one :) These games are both fun and often quite educational, presenting gamified versions of real-world challenges and professions. There's a lot of different sub-genres of "engineering game", such as: * Factory automation (Factorio, Dyson Sphere Program) * City builders (Cities: Skylines, Anno series) * Route-builders (Mini Motorways, Railway Empire) * Comp sci (TIS-100, Bitburner) All games on the list are very highly reviewed. I've played most (but not all) of them, and provided personal recommendations alongside the reviews. Many of them are also playable on GeForce Now (if you don't have a gaming PC). Please contribute if you know of more, or have any comments/suggestions! https://bit.ly/40MlWCP November 19, 2023 at 08:22PM

Show HN: YouTube banned adblockers so I built an extension to skip their ads https://bit.ly/47lxlf9

Show HN: YouTube banned adblockers so I built an extension to skip their ads Hi HN! Since Youtube no longer allows AdBlockers, I built my own extension to get around their video ads. If there is an ad it temporarily manipulates the video; Mutes the volume, sets speed to 10x, and skips it if there is a button. Chrome Webstore link: https://bit.ly/3uetWjF Code: https://bit.ly/47FtDwU November 19, 2023 at 01:54AM

Show HN: SRec.ai – ML-based Steam video game recommender https://bit.ly/3G3QFBR

Show HN: SRec.ai – ML-based Steam video game recommender Hi everyone, In the past few months, I've been working to build ML-based recommender systems for Steam video games. I built this since I'm not satisfied with recommendations shown by Steam, especially for non-popular games. SRec provides 3 kinds of recommendation systems, * Smart recommender. It's based on GCE-GNN (Global Context Enhanced Graph Neural Networks) model with some modifications. * Recommendation by similar game tags. This recommender provide explanation by showing top-5 most similar tags between chosen and recommended games. * Recommendation by Steam user preferences. It's strongly recommended to use either smart recommender or recommendation by game tags. Currently, smart recommender has poor performance when recommending extremely popular games. The performance of recommendation by similar game tags is limited by how Steam user apply tags to each games. Some technical details of Smart recommender can be seen on https://bit.ly/47GLmnJ . On each game page, SRec shows various game details including Steam Deck compatibility, content warning and all game tags. SRec also shows review insight for most games that shows most frequently mentioned keywords where you can read some top reviews which mention selected keyword. While you can access SRec on either desktop or mobile device, I recommend you to access SRec with desktop since I have no experience building front-end. But feel free to ask any question or leave feedback. https://bit.ly/3G3QGpp November 18, 2023 at 08:25AM

Show HN: Grigora.co – A Blogger's Answer to Secure, Simple Web Building https://bit.ly/3SHqbxu

Show HN: Grigora.co – A Blogger's Answer to Secure, Simple Web Building Hello HN, I'm Karan, and after a hack wiped out my blog and revenue ($15-20k/month), I was propelled to create Grigora.co. Our beta platform is designed to be a secure, straightforward alternative to WordPress, addressing the pain points I faced as a blogger. With 165 users exploring Grigora and zero paid customers so far, we're eager to evolve. We invite the HN community to test Grigora.co, share feedback, and join us in this mission to streamline web security and functionality. Looking forward to your insights, Karan https://bit.ly/3SMZhnP November 18, 2023 at 06:39AM

Show HN: Lightly – A Python library for self-supervised learning on images https://bit.ly/3MRWGoT

Show HN: Lightly – A Python library for self-supervised learning on images https://bit.ly/3G017dD November 17, 2023 at 05:54AM