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Showing posts from March 20, 2022

Show HN: How to create an echo server with Pipy proxy https://ift.tt/KgP8nqs

Show HN: How to create an echo server with Pipy proxy In this part of tutorial, you will learn how dynamic content can be made in responses from a Pipy program. You will also tast a bit of how variables work in Pipy. Takeaways Filter parameters are only evaluated once so they have a "static" value at runtime. To make them "dynamic", they need to be functions that output dynamic values. Global variables have isolated states between concurrent pipelines. One of the builtin global variables is __inbound, which contains address/port information about the current incoming connection. More details, please refer to [https://ift.tt/S2nI0Ej] March 26, 2022 at 10:45AM

Show HN: Throw – The new space for asking and answering questions anonymously https://ift.tt/d2cgO60

Show HN: Throw – The new space for asking and answering questions anonymously Hello HN community, For the past year we’ve been working on this disruptive new thing. It’s about people, community, communication and truth. Throw is the new space for asking and answering questions anonymously. We believe that in today’s world (both online and offline) content in communication exchanges is strongly influenced by the personas, profiles and façades people maintain/upkeep/safeguard socially, ideologically and on relationships. From the way people post on Instagram the life they want others to believe they have, or the way people behave on thanksgiving with family, or at work, or with friends; on every social setting and interaction to some degree acting and behaving according to that setting and the people they interact with. These dynamics influence the content itself, as people don’t just respond to a question like computers do. What ends up happening is that the responder comes up with the

Show HN: Pipy 0.30.0 https://ift.tt/rGA459C

Show HN: Pipy 0.30.0 Pipy 0.30 is now available. It adds improvements to a number of areas including better documentation, more core controls, new filters, enhanced Cache and Metrics API, and some bug fixes. The Pipy Runtime API has expanded its coverage of SSL engines, asynchronous file read/write operations. This release was truly a community effort and could not have been made possible without all of the hard work from everyone involved in active discussions and the Pipy project on GitHub.The Pipy community provides code submissions covering new functionality and bug fixes, documentation improvements, quality assurance testing, continuous integration environments, bug reports, and much more. Everyone has done their part to make this release possible! If you’d like to join this amazing community, you can find it on GitHub, Slack, and the Pipy discussion groups. March 25, 2022 at 10:10AM

Show HN: Create Matplotlib visualizations from the command-line https://ift.tt/iCU3HcJ

Show HN: Create Matplotlib visualizations from the command-line I do lots of data analyses in the command-line and I was missing a simple utility to plot the output of a command (without having to script it). I like very much the Matplotlib API but I found no CLI to pipe data into it. So, I wrote MatplotCLI, a simple CLI that reads data from the stdin and allows to easily create interactive plots from the command-line. Have a look at the README for examples and recipes. Let me know what you think, thanks! Some examples: $ plt "hist(x,30)" < sample.json $ cat sample.json | plt --no-show "hist(x,30); savefig('myimage.png')" $ plt --no-input " x = np.linspace(-1,1,2000); y = x*np.sin(1/x); plot(x,y); axis('scaled'); grid(True)" $ echo ' {"a":0, "b":1} {"a":1, "b":0} {"a":3, "b":3}' | plt "plot(a,b)" https://github.com/dcmoura/matplotcli March 23, 2022 at 01:30AM

Show HN: We made an open-source personalization engine https://ift.tt/Sc2gohi

Show HN: We made an open-source personalization engine Hey, HN! You probably know that the ordering of products on Amazon, posts in FB, and search results in Google is personalized for each visitor, as it directly affects conversion, click rate and engagement. But not everyone can afford to hire an army of PhDs to squeeze every penny out of the ranking, and not everyone agrees on the current (im)balance between privacy and profits. So we built Metarank, an open-source and privacy-focused personalization engine. It can rerank in real-time any type of content, using only the data you allow, and optimize metrics you define. We made a lot of proprietary DIY services for personalization in e-commerce in our past careers and heard so many complaints from other companies also struggling to implement personalization. It’s often considered "too risky" to spend 6+ months on an in-house moonshot project to reinvent the wheel without an experienced team and no existing open-source tools.

Show HN: Vault – Sports bet data aggregation app https://ift.tt/qTofeNY

Show HN: Vault – Sports bet data aggregation app Hey HN, this is Caleb and Zach, we co-founded Vault after realizing how behind the times consumer-facing tech was in the sports betting industry. After creating various products and prototypes for sports bettors for most of 2020 (many with little/no success), in early 2021 we realized a key problem that sports bettors faced... Most of them were tracking their bets, ROI, and net profit using Excel tables or other forms of manual entry. Gaining inspiration from fintech apps such as Intuit Mint and CoPilot, both of which link with your financial accounts and aggregate your data, we created Vault. An app that links with a bettor's sportsbooks (i.e. DraftKings, BetMGM, Caesars) and aggregates that data. Would love to hear your thoughts, and feel free to reach out to Zach and I at info@vaultsportshq.com https://ift.tt/v7h4yi2 March 23, 2022 at 04:22AM

Show HN: Party Banner for iOS https://ift.tt/5lkSmDB

Show HN: Party Banner for iOS Hey HN! Today marks the official launch of Party Banner for iPhone and iPad. Even with digital signage on the rise, we often tend to neglect one of the center focal points of our living and office spaces... the TV. Looking for a way to utilize this otherwise empty canvas, Party Banner takes every special occasion to the next level with premium digital banners that help decorate your space. Please share your thoughts on the app, and any banner designs you would like to see in future updates. Thanks, and party on! March 22, 2022 at 03:07AM

Show HN: Speech2Code – Code with Voice https://ift.tt/fervKEM

Show HN: Speech2Code – Code with Voice Hey all, Last year I attempted to build an assistive voice programming tool as part of my undergraduate dissertation in CS. Speech2Code offers support for the basic features of the JavaScript language, accepts commands in both English and Portuguese, integrates well with the VSCode editor, and also works on the browser. Hope you like, thanks! https://ift.tt/iyIXoxM March 22, 2022 at 03:36AM

Show HN: Open-Source 3D Location-Based Wireless Mesh Network https://ift.tt/gJrRply

Show HN: Open-Source 3D Location-Based Wireless Mesh Network I've decided to open source the project I've been working on called Hyperspace. Hyperspace is a suite of software implementing a wireless mesh network for IoT devices. My main requirements are listed on my repo but I'll copy them here. 1. The mesh shall enable nodes to route packets amongst themselves. 2. The mesh shall allow nodes with limited power to participate in routing packets. 3. The mesh shall be IPv6 based. 4. The mesh shall be local. I.E. not require connection to a remote server. 5. The mesh should provide 3D location to nodes in the network. Nodes use the Decawave DW1000 UWB radio to transmit and receive data, and to measure distances to other nodes. Location can be determined with enough distance measurements (see the documentation for more details). The implementation is pretty primitive at the moment. The border router server and the iOS app are super basic and have very little in terms of actual f

Show HN: I built a platform for projects to find maintainers https://ift.tt/96NawgZ

Show HN: I built a platform for projects to find maintainers A few days ago, someone I follow asked the community for help maintaining his side-project, 512kb.club. This got me thinking. There are loads of maintainers out there feeling burnt out, but they can't abandon their project since people are depending on the project to be maintained. In an effort to combat this, I built a website that lists projects looking for new maintainers. It's still quite empty and has some rough edges. Any feedback is very welcome! https://ift.tt/WJTEGrY March 21, 2022 at 02:32AM