Show HN: Foundations of Music (FoM)
2 by ersinesen | 0 comments on Hacker News.
Foundations of Music is an attempt to establish a conceptual and formal foundation for understanding music. Rather than declaring what music is, FoM shows where and how music becomes possible. It provides simple explanations to complex concepts like vibrato, glissando, and portamento to outsiders. It enables new vocabulary like jazzing, jazzing aroung, jazzing along, and jazz translation which are mind refreshing, at least to me. For a sample of translation (Turkish Folk to Blues) you may see: https://www.youtube.com/watch?v=Ml4pEk2hMM8 Proposed perceptual fatigue concept can be found highly controversial, but I think it may be an inspiring food for thought. In the end, FoM is a work in progress to constitute a stable ground from which new musical questions can be meaningfully explored.
Hack Nux
Watch the number of websites being hacked today, one by one on a page, increasing in real time.
New ask Hacker News story: Ask HN: How do you handle peer-to-peer discovery on iOS without a server?
Ask HN: How do you handle peer-to-peer discovery on iOS without a server?
5 by redgridtactical | 5 comments on Hacker News.
I'm building an app that syncs between phones over Bluetooth when there's no cell service. Android has Nearby Connections API which handles discovery and transport nicely. iOS has Multipeer Connectivity but it's flaky and Apple hasn't updated it in years. CoreBluetooth works but discovery is slow and you're limited to advertising 28 bytes. Has anyone found a reliable cross-platform approach to BLE device discovery that doesn't require a central server or pre-shared identifiers?
5 by redgridtactical | 5 comments on Hacker News.
I'm building an app that syncs between phones over Bluetooth when there's no cell service. Android has Nearby Connections API which handles discovery and transport nicely. iOS has Multipeer Connectivity but it's flaky and Apple hasn't updated it in years. CoreBluetooth works but discovery is slow and you're limited to advertising 28 bytes. Has anyone found a reliable cross-platform approach to BLE device discovery that doesn't require a central server or pre-shared identifiers?
New Show Hacker News story: Show HN: An event loop for asyncio written in Rust
Show HN: An event loop for asyncio written in Rust
4 by yehors | 0 comments on Hacker News.
actually, nothing special about this implementation. just another event loop written in rust for educational purposes and joy in tests it shows seamless migration from uvloop for my scraping framework https://ift.tt/sIeulER with APIs (fastapi) it shows only one advantage: better p99, uvloop is faster about 10-20% in the synthetic run currently, i am forking on the win branch to give it windows support that uvloop lacks
4 by yehors | 0 comments on Hacker News.
actually, nothing special about this implementation. just another event loop written in rust for educational purposes and joy in tests it shows seamless migration from uvloop for my scraping framework https://ift.tt/sIeulER with APIs (fastapi) it shows only one advantage: better p99, uvloop is faster about 10-20% in the synthetic run currently, i am forking on the win branch to give it windows support that uvloop lacks
New Show Hacker News story: Show HN: Travel Hacking Toolkit – Points search and trip planning with AI
Show HN: Travel Hacking Toolkit – Points search and trip planning with AI
2 by borski | 0 comments on Hacker News.
I use points and miles for most of my travel. Every booking comes down to the same decision: use points or pay cash? To answer that, you need award availability across multiple programs, cash prices, your current balances, transfer partner ratios, and the math to compare them. I got tired of doing it manually across a dozen tabs. This toolkit teaches Claude Code and OpenCode how to do it. 7 skills (markdown files with API docs and curl examples) and 6 MCP servers (real-time tools the AI calls directly). It searches award flights across 25+ mileage programs (Seats.aero), compares cash prices (Google Flights, Skiplagged, Kiwi.com, Duffel), pulls your loyalty balances (AwardWallet), searches hotels (Trivago, LiteAPI, Airbnb, Booking.com), finds ferry routes across 33 countries, and looks up weird hidden gems near your destination (Atlas Obscura). Reference data is included: transfer partner ratios for Chase UR, Amex MR, Bilt, Capital One, and Citi TY. Point valuations sourced from TPG, Upgraded Points, OMAAT, and View From The Wing. Alliance membership, sweet spot redemptions, booking windows, hotel chain brand lookups. 5 of the 6 MCP servers need zero API keys. Clone, run setup.sh, start searching. Skills are, as usual, plain markdown. They work in OpenCode and Claude Code automatically (I added a tiny setup script), and they'll work in anything else that supports skills. PRs welcome! Help me expand the toolkit! :) https://ift.tt/SV65cT0
2 by borski | 0 comments on Hacker News.
I use points and miles for most of my travel. Every booking comes down to the same decision: use points or pay cash? To answer that, you need award availability across multiple programs, cash prices, your current balances, transfer partner ratios, and the math to compare them. I got tired of doing it manually across a dozen tabs. This toolkit teaches Claude Code and OpenCode how to do it. 7 skills (markdown files with API docs and curl examples) and 6 MCP servers (real-time tools the AI calls directly). It searches award flights across 25+ mileage programs (Seats.aero), compares cash prices (Google Flights, Skiplagged, Kiwi.com, Duffel), pulls your loyalty balances (AwardWallet), searches hotels (Trivago, LiteAPI, Airbnb, Booking.com), finds ferry routes across 33 countries, and looks up weird hidden gems near your destination (Atlas Obscura). Reference data is included: transfer partner ratios for Chase UR, Amex MR, Bilt, Capital One, and Citi TY. Point valuations sourced from TPG, Upgraded Points, OMAAT, and View From The Wing. Alliance membership, sweet spot redemptions, booking windows, hotel chain brand lookups. 5 of the 6 MCP servers need zero API keys. Clone, run setup.sh, start searching. Skills are, as usual, plain markdown. They work in OpenCode and Claude Code automatically (I added a tiny setup script), and they'll work in anything else that supports skills. PRs welcome! Help me expand the toolkit! :) https://ift.tt/SV65cT0
New ask Hacker News story: How are you so sure this is not just another winter
How are you so sure this is not just another winter
3 by shoman3003 | 1 comments on Hacker News.
Because recently I am able to finish an entire episode on netflix without having to check on the agents, sometime that episode is 40 min long! I literally watch more TV than I do actual work, and I am still 3 times more productive than last year! I am not even up to date; some people wake up & tell the agents what to do & then go back to sleep
3 by shoman3003 | 1 comments on Hacker News.
Because recently I am able to finish an entire episode on netflix without having to check on the agents, sometime that episode is 40 min long! I literally watch more TV than I do actual work, and I am still 3 times more productive than last year! I am not even up to date; some people wake up & tell the agents what to do & then go back to sleep
New Show Hacker News story: Show HN: The Two by Two Truth Diagram
Show HN: The Two by Two Truth Diagram
2 by 8crazyideas | 0 comments on Hacker News.
I am diagnostic radiologist with over 40 years experience. In diagnostic testing, many terms are used to describe how well the test detects the disease or disorder. Examples are “sensitivity”, “specificity”, “predictive values”, “odds ratio”, “likelihood ratios” and numerous others. In the literature and medical presentations there is often not much consistency in their use; as a physician listening to or reading research, I was perpetually unclear on how these terms “fit together”. My solution was to invent the visual 2 by 2 diagram, or truth diagram, as a graphical alternative to the standard contingency table used in diagnostic testing (Johnson 1999). The concepts listed above, and many others, are represented graphically, and their inter-relationships can be clearly visualized. Instead of four numbers in a grid, a single rectangle on a coordinate system encodes all four cells of the 2×2 table through its position and shape. Each hemi-axis corresponds to one cell (see below). The vertical height corresponds to the number of subjects with the disorder, and the horizontal width corresponds to the number of subjects without the disorder. A low, wide box represents a low prevalence of the disorder; a high narrow box represents a high prevalence. The diagram makes it possible to see statistics like sensitivity, specificity, PPV, NPV, likelihood ratios, and even Bayes’ theorem as geometric relationships — lengths, areas, slopes, and proportions — rather than abstract formulas. Drag or resize the box to see how the cell values change. The other lessons in this app explain each of the terms and how they appear on the diagram. Any of these screens can be saved for presentation and publication purposes. Please take a look and feel free to give me feedback. REFERENCES Johnson KM. The two by two diagram: a graphical truth table. J Clin Epidemiol. 1999;52(11):1073-82. [PubMed] [ResearchGate] Johnson KM, Johnson BK. Visual presentation of statistical concepts in diagnostic testing: the 2×2 diagram. AJR Am J Roentgenol. 2014;203(1):W14-20. [PubMed] [ResearchGate] Johnson KM. Using Bayes’ rule in diagnostic testing: a graphical explanation. Diagnosis (Berl). 2017;4(3):159-67. [PubMed] [ResearchGate]
2 by 8crazyideas | 0 comments on Hacker News.
I am diagnostic radiologist with over 40 years experience. In diagnostic testing, many terms are used to describe how well the test detects the disease or disorder. Examples are “sensitivity”, “specificity”, “predictive values”, “odds ratio”, “likelihood ratios” and numerous others. In the literature and medical presentations there is often not much consistency in their use; as a physician listening to or reading research, I was perpetually unclear on how these terms “fit together”. My solution was to invent the visual 2 by 2 diagram, or truth diagram, as a graphical alternative to the standard contingency table used in diagnostic testing (Johnson 1999). The concepts listed above, and many others, are represented graphically, and their inter-relationships can be clearly visualized. Instead of four numbers in a grid, a single rectangle on a coordinate system encodes all four cells of the 2×2 table through its position and shape. Each hemi-axis corresponds to one cell (see below). The vertical height corresponds to the number of subjects with the disorder, and the horizontal width corresponds to the number of subjects without the disorder. A low, wide box represents a low prevalence of the disorder; a high narrow box represents a high prevalence. The diagram makes it possible to see statistics like sensitivity, specificity, PPV, NPV, likelihood ratios, and even Bayes’ theorem as geometric relationships — lengths, areas, slopes, and proportions — rather than abstract formulas. Drag or resize the box to see how the cell values change. The other lessons in this app explain each of the terms and how they appear on the diagram. Any of these screens can be saved for presentation and publication purposes. Please take a look and feel free to give me feedback. REFERENCES Johnson KM. The two by two diagram: a graphical truth table. J Clin Epidemiol. 1999;52(11):1073-82. [PubMed] [ResearchGate] Johnson KM, Johnson BK. Visual presentation of statistical concepts in diagnostic testing: the 2×2 diagram. AJR Am J Roentgenol. 2014;203(1):W14-20. [PubMed] [ResearchGate] Johnson KM. Using Bayes’ rule in diagnostic testing: a graphical explanation. Diagnosis (Berl). 2017;4(3):159-67. [PubMed] [ResearchGate]
New Show Hacker News story: Show HN: Vibefolio – a place to showcase your vibecoded projects
Show HN: Vibefolio – a place to showcase your vibecoded projects
5 by Gooblebrai | 0 comments on Hacker News.
Over the last months, more people are shipping small apps, experiments, and side-projects at a much higher pace. I'm one of them and initially created a showcase page for myself to track them but this week decided to create something for others. Happy to read feedback on how to improve it further!
5 by Gooblebrai | 0 comments on Hacker News.
Over the last months, more people are shipping small apps, experiments, and side-projects at a much higher pace. I'm one of them and initially created a showcase page for myself to track them but this week decided to create something for others. Happy to read feedback on how to improve it further!