Show HN: Peptide calculators ask the wrong question. I built a better one https://ift.tt/jgazuhT

Show HN: Peptide calculators ask the wrong question. I built a better one Most peptide calculators ask the wrong question. They ask: How much water are you adding? But in practice, what you actually know is your vial size and your target dose . The water amount should be the output , not the input . It should also make your dose land on a real syringe tick mark. Not something like 17.3 units. I built a peptide calculator that works this way: https://ift.tt/n5O7ZRT What’s different: - You pick vial size and target dose → reconstitution is calculated for you - Doses align to actual syringe markings - Common dose presets per peptide - Works well on mobile (where this is usually done) - Supports blends and compounds (e.g. GLOW or CJC-1295 + Ipamorelin) - You can save your vials. No account required. Happy to hear feedback or edge cases worth supporting. https://ift.tt/n5O7ZRT January 31, 2026 at 11:02PM

Show HN: I built a receipt processor for Paperless-ngx https://ift.tt/M8o5SLU

Show HN: I built a receipt processor for Paperless-ngx Hi all, I wanted a robust way to keep track of my receipts without needing to keep them in a box and so i found paperless - but the existing paperless ai projects didn't really convert my receipts to usable data. so I created a fork of nutlope's receipthero (actually it's a complete rewrite, the only thing that remains over is the system prompt) The goal of this project is to be a one stop shop for automatically detecting tagged docs and converting them to json using schema definitions - that includes invoices, .... i can't think of any others right now, maybe you can? If you do please make an issue for it! I would appreciate any feedback/issues thanks! (p.s i made sure its simple to setup with dockge/basic docker-compose.yml) repo: https://ift.tt/nMmrdZk tutorial: https://youtu.be/LNlUDtD3og0 January 31, 2026 at 09:17PM

Show HN: Kling VIDEO 3.0 released: 15-second AI video generation model https://ift.tt/Jzpmx1n

Show HN: Kling VIDEO 3.0 released: 15-second AI video generation model Kling just announced VIDEO 3.0 - a significant upgrade from their 2.6 and O1 models. Key improvements: *Extended duration:* • Up to 15 seconds of continuous video (vs previous 5-10 seconds) • Flexible duration ranging from 3-15 seconds • Better for complex action sequences and scene development *Unified multimodal approach:* • Integrates text-to-video, image-to-video, reference-to-video • Video modification and transformation in one model • Native audio generation (synchronized with video) *Two variants:* • VIDEO 3.0 (upgraded from 2.6) • VIDEO 3.0 Omni (upgraded from O1) *Enhanced capabilities:* • Improved subject consistency with reference-based generation • Better prompt adherence and output stability • More flexibility in storyboarding and shot control This positions Kling competitively against: - Runway Gen-4.5 ($95/month) - Sora 2 (limited access) - Veo 3.1 (Google) - Grok Imagine (just topped rankings) The 15-second duration is particularly interesting - enables more narrative storytelling vs the typical 5-second clips. Combined with native audio, this could change workflows for content creators. Pricing isn't mentioned in the announcement. Previous Kling models ranged from $10-40/month, significantly cheaper than Runway. Anyone have access to test this yet? Curious how the quality compares to Runway and Sora at this new duration. https://kling3.net January 31, 2026 at 09:06AM

Show HN: Interactive Equation Solver https://ift.tt/0tDfpsE

Show HN: Interactive Equation Solver Hey HN Here's a demo of an interactive equation solver for sympy/Python: https://youtu.be/O837G7cj5fE?si=6YjfNFviozCLSYut The example is a simple kinematics exercise from a college physics text. I'd be curious to know if there are any other systems like this. Code is in a branch here: https://ift.tt/RfWoJiy... January 31, 2026 at 04:31AM

Show HN: Phage Explorer https://ift.tt/dcOBPwF

Show HN: Phage Explorer I got really interested in biology and genetics a few months ago, just for fun. This was largely inspired by the work of Sydney Brenner, which became the basis of my brennerbot.org project. In particular, I became very fascinated by phages, which are viruses that attack bacteria. They're the closest thing to the "fundamental particles" of biology: the minimal units of genetic code that do something useful that allows them to reproduce and spread. They also have some incredible properties, like having a structure that somehow encodes an icosahedron. I always wondered how the DNA of these things translated into geometry in the physical world. That mapping between the "digital" realm of ACGT, which in turn maps onto the 20 amino acids in groups of 3, and the world of 3D, analog shapes, still seems magical and mysterious to me. I wanted to dig deeper into the subject, but not by reading a boring textbook. I wanted to get a sense for these phages in a tangible way. What are the different major types of phages? How do they compare to each other in terms of the length and structure of their genetic code? The physical structure they assume? I decided to make a program to explore all this stuff in an interactive way. And so I'm very pleased to present you with my open-source Phage Explorer: phage-explorer.org I probably went a bit overboard, because what I ended up with has taken a sickening number of tokens to generate, and resulted in ~150k lines of Typescript and Rust/Wasm. It implements 23 analysis algorithms, over 40 visualizations, and has the complete genetic data and 3D structure of 24 different classes of phage. It actually took a lot of engineering to make this work well in a browser; it's a surprising amount of data (this becomes obvious when you look at some of the 3D structure models). It works fairly well on mobile, but if you want to get the full experience, I highly recommend opening it on a desktop browser in high resolution. As far as I know, it's the most complete informational / educational software about phages available anywhere. Now, I am the first to admit that I'm NOT an expert, or even that knowledgeable, about, well, ANY of this stuff. So if you’re a biology expert, please take a look and let me know what you think of what I've made! And if I've gotten anything wrong, please let me know in the GitHub Issues and I'll fix it: https://ift.tt/vaiS4Q0 https://ift.tt/hWbJlDX January 31, 2026 at 02:22AM

Show HN: The Freak Circus Game Online – Yandere Horror Visual Novel https://ift.tt/g6Aw7ZQ

Show HN: The Freak Circus Game Online – Yandere Horror Visual Novel https://ift.tt/04PYgaR January 30, 2026 at 03:24AM

Show HN: ÆTHRA – Writing Music as Code https://ift.tt/m9W0x8g

Show HN: ÆTHRA – Writing Music as Code Hi HN I’m building ÆTHRA — a programming language designed specifically for composing music and emotional soundscapes. Instead of focusing on general-purpose programming, ÆTHRA is a pure DSL where code directly represents musical intent: tempo, mood, chords, progression, dynamics, and instruments. The goal is to make music composition feel closer to writing a story or emotion, rather than manipulating low-level audio APIs. Key ideas: - Text-based music composition - Chords and progressions as first-class concepts - Time, tempo, and structure handled by the language - Designed for ambient, cinematic, emotional, and minimal music - Interpreter written in C# (.NET) Example ÆTHRA code (simplified): tempo 60 instrument guitar chord Am for 4 chord F for 4 chord C for 4 chord G for 4 This generates a slow, melancholic progression suitable for ambient or cinematic scenes. ÆTHRA currently: - Generates WAV audio - Supports notes, chords, tempo, duration, velocity - Uses a simple interpreter (no external DAWs or MIDI tools) - Is intentionally minimal and readable What it is NOT: - Not a DAW replacement - Not MIDI-focused Why I made it: I wanted a language where music is the primary output — not an afterthought. Something between code, emotion, and sound design. The project is open-source and early-stage (v0.8). I’m mainly looking for: - Feedback on the language design - Ideas for musical features worth adding - Thoughts from people into PL design, audio, or generative art Repo: < https://github.com/TanmayCzax/AETHRA > Thanks for reading — happy to answer questions or discuss ideas. January 30, 2026 at 01:59AM