OxygenIT Essential

What it does

A GreenOps tool for IT teams to track and reduce IaaS & PaaS carbon emissions across AWS, Azure & GCP—fast and ISO-compliant

• ZW
  Zero Waste Cloud – Finds 20-40% savings in AWS/GCP bills and CO2 impact2025 · zerowastecloud.io · ▲8

  Hey HN! I'm Mike, based in Stockholm/Sweden and I'm the founder of Zero Waste Cloud (https://zerowastecloud.io) - a tool that scans AWS and GCP infrastructure to find cost optimization opportunities while calculating the environmental impact. Almost all businesses can save 20-40% of their cloud costs using this tool (sources at bottom) TLDR: Sign up -> Connect your AWS/GCP -> Scan -> Save 20-40% of your cloud spend. My backstory: I've been a CISO and in IT management for a long time and always been frustrated by how much waste I'd find in every environment - idle EC2…

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  GreenOps ScanAug 2026 · greenops.cloud · ▲3

  Find AWS cost + carbon waste with one local command

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  Greenr2021 · ▲125

  Track, reduce, compete and offset your carbon footprint

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  GreenFrame2022 · ▲85

  Measure and reduce your website's CO2 emissions!

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  LimeOps2023 · ▲213

  Cut your AWS cloud cost up to 40%

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  PipeOps2023 · ▲102

  No code tool for cloud deployment & infrastructure mgmt

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

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  iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329

  Photosynthesis fires two of your iPhone

  Life & fun · 28d ago · photosynthesis.camera

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  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

  Life & fun · 28d ago · solouno.io

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  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 26d ago · everycube.alen.is

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  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

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  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 26d ago · baselashraf81.github.io

• IB
  I built a hardware processor that runs Python▲983

  Hi everyone, I built PyXL — a hardware processor that executes a custom assembly generated from Python programs, without using a traditional interpreter or virtual machine. It compiles Python -> CPython Bytecode -> Instruction set designed for direct hardware execution. I’m sharing an early benchmark: a GPIO test where PyXL achieves a 480ns round-trip toggle — compared to 14-25 micro seconds on a MicroPython Pyboard - even though PyXL runs at a lower clock (100MHz vs. 168MHz). The design is stack-based, fully pipelined, and preserves Python's dynamic typing without static type restrictions.…

  Dev tools · 2025 · runpyxl.com

• UC
  Unsure Calculator – back-of-a-napkin probabilistic calculator▲930

  Life & fun · 2025 · filiph.github.io

• IB
  I built an AI that turns GitHub codebases into easy tutorials▲923

  https:&#x2F;&#x2F;the-pocket.github.io&#x2F;Tutorial-Codebase-Knowledge&#x2F;

  AI · 2025 · github.com

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  Whatting▲898

  The iPad diary, just for you

  Work · 2025 · whatting.com

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  Strawberry▲859

  AI browser that saves you 18h/week

  AI · 2025 · strawberrybrowser.com

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  Peek▲828

  AI personal finance coach that guides you through decisions

  Work · 2025 · peek.money