Show HN: I made a mobile app that turns your step count into a race https://ift.tt/sV4EDyI

Show HN: I made a mobile app that turns your step count into a race I just launched my first-ever mobile app. It’s called STEPRACERS, a game where you compete with friends by tracking your steps. The idea came from someone close to me who completely changed their life by focusing on their health. Every night, they’d send me their step count - a small, daily ritual that became a powerful reminder of progress. So I turned it into a game. It’s fun. It’s simple. And it might just push you to hit your 10k steps a day. https://ift.tt/qNIgAsS June 10, 2025 at 02:28AM

Show HN: Somo – a human friendly alternative to netstat https://ift.tt/8PkUyH4

Show HN: Somo – a human friendly alternative to netstat https://ift.tt/N1UQTbi June 9, 2025 at 11:29PM

Show HN: Munal OS: a graphical experimental OS with WASM sandboxing https://ift.tt/cA2YOyd

Show HN: Munal OS: a graphical experimental OS with WASM sandboxing Hello HN! Showing off the first version of Munal OS, an experimental operating system I have been writing in Rust on and off for the past few years. https://ift.tt/s4ZHFYo It's an unikernel design that is compiled as a single EFI binary and does not use virtual address spaces for process isolation. Instead, applications are compiled to WASM and run inside of an embedded WASM engine. Other features: * Fully graphical interface in HD resolution with mouse and keyboard support * Desktop shell with window manager and contextual radial menus * PCI and VirtIO drivers * Ethernet and TCP stack * Customizable UI toolkit providing various widgets, responsive layouts and flexible text rendering * Embedded selection of applications including: * A web browser supporting DNS, HTTPS and very basic HTML * A text editor * A Python terminal Checkout the README for the technical breakdown. Demo video: https://ift.tt/KOfLlGb https://ift.tt/s4ZHFYo June 9, 2025 at 11:04PM

Show HN: Hexplain – Making medical papers accessible with AI https://ift.tt/t4g7jNR

Show HN: Hexplain – Making medical papers accessible with AI https://hexplain.ai/ June 9, 2025 at 02:40AM

Show HN: Chaum Pedersen ZK Protocol Using gRPC https://ift.tt/IAzlKn7

Show HN: Chaum Pedersen ZK Protocol Using gRPC Here is the protocol worklow. Let us define g as the generator of the multiplicative cyclic group G of order q. Let us define p = 2q + 1 (a safe prime). The values p, g, a1, b1, c1 are publicly available to the prover and the verifier. a1 = g^a mod q b1 = g^b mod q c1 = g^ab mod q where a and b are cryptographically secure randomly generated numbers. prover wants to prove he knows a secret x. the prover computes y1 = g^x mod q and y2 = b1^x mod q. the prover sends y1 and y2 to the verifier. The verifier then computes a challenge value s and sends it to the prover. the prover then computes z = (x + as) mod q. the prover sends z to the verifier. The verifier then does two checks, g^z mod q = a1^s * y1 mod q and b1^z mod q = c1^s * y2 mod q. If the checks are satisfied that means the prover has proved that he indeed knows x. It can be mathematically proven that these checks are indeed true if and only if the prover knows a valid x. https://ift.tt/NdjfEwK June 8, 2025 at 10:50PM

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser https://ift.tt/SnJTqyM

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser We are pleased to announce a new version of our curve fitting web app with a whole new backend, front end, and all of the bells and whistles. If you see anything left out, or that could be improved, please let us know!! We'd love to hear any feedback from this amazing community. https://ift.tt/yHzluLN June 8, 2025 at 09:01PM

Show HN: Small tool to query XML data using XPath https://ift.tt/Nj0hkC3

Show HN: Small tool to query XML data using XPath https://ift.tt/Ki0awuC June 8, 2025 at 02:23AM