Show HN: I made a tool for learning scales, chords, and how to combine them https://ift.tt/DQLj4uE

Show HN: I made a tool for learning scales, chords, and how to combine them This started out when I vibe-coded a guitar scale fingering generator. It came out pretty good, and I started adding stuff to it: chords, then how chords and scales interact. Then I added charts for other instruments I mess around with: piano, cello, alto recorder. There's a complexity toggle to go from basic harmony to extended/experimental stuff. It's honestly still mostly a toy, but I thought other people might be interested in playing with it. Source is on github, so it's easy enough to run locally and fork. https://ift.tt/GZhL8mR https://ift.tt/t9opsUe May 20, 2026 at 11:14PM

Show HN: Gaussian Splat of a Strawberry https://ift.tt/jWHqL2R

Show HN: Gaussian Splat of a Strawberry The Setup: https://ift.tt/tafidgo https://ift.tt/54tnJTz https://ift.tt/B19UxAJ https://ift.tt/rP9Stxy https://ift.tt/NWqlbHj May 19, 2026 at 04:08PM

Show HN: How Expensive Is Your (Steam) Wishlist? https://ift.tt/yK8RL0k

Show HN: How Expensive Is Your (Steam) Wishlist? A tool/toy that lets you connect to your Steam wishlist to calculate the total list/current price of all the games on it. There's a shallow, jokey purpose to it ("I could buy a BMW with this amount!"), but the real purpose is to demonstrate how we can do a better job of portraying a game catalog. I often wishlist stuff, then it pops up in a "Hey, it's on sale!" email months later. In that email, there's a banner capsule, but that doesn't help my brain remember why I added it. To that end, after you get the bill, you get a nice, flat feed of stuff about all the titles you've wishlisted over the years. It's all stuff that developers painstakingly put together, but which Steam tucks away under the fold of a game's Store page. Anyway, my wishlist came to about $250. My QA guy is up to $19k. Give it a go; hope you enjoy it! https://ift.tt/EudrRHP May 19, 2026 at 10:45PM

Show HN: Cubic Doggo, a Open-Source 12-DOF 4-Legged Robot Based on ROS2 https://ift.tt/OZP5S1l

Show HN: Cubic Doggo, a Open-Source 12-DOF 4-Legged Robot Based on ROS2 This is a recipe for building intermediate-priced robot dog from scratch with all commercial/3D-printed parts, controlled by Rasp Pi 5 and ROS2 Jazzy. A manually coded walk gait is implemented so far, which can be controlled by a controller to move forward or change directions. It does not yet have an IMU required for RL training; however, I believe it's one of the simplest design out there available for multiple development paths. https://ift.tt/tSA5nQW May 18, 2026 at 10:50PM

Show HN: We missed Winamp, so we built an audio player for macOS https://ift.tt/Xkq9y3J

Show HN: We missed Winamp, so we built an audio player for macOS https://ift.tt/PEnbiFN May 19, 2026 at 12:50AM

Show HN: Marlin-2B: a tiny VLM to extract structured information from videos https://ift.tt/Tet3F1V

Show HN: Marlin-2B: a tiny VLM to extract structured information from videos https://ift.tt/opiIZ0j May 18, 2026 at 11:36PM

Show HN: HypergraphZ – directed hypergraph library in Zig with Python bindings https://ift.tt/yoUPenA

Show HN: HypergraphZ – directed hypergraph library in Zig with Python bindings https://ift.tt/8sR2DgH May 18, 2026 at 12:38AM