Postbrew

What it does

Your coffee lab notebook meets taste diary meets social hangout. Log every brew variable, track experiments in journals, and watch your palate evolve in real-time. Follow fellow coffee nerds, steal brewing tricks, and geek out over what everyone's making. Unlike review sites (too commercial) or tracking apps (too mechanical), Postbrew treats coffee as creative practice. Think: Letterboxd for coffee. Independent & community-first. Just curious tasters nerding out intentionally.

• 
  Fika2015 · ▲98

  A social coffee journal

• 
  CoffeePedia2024 · ▲109

  Discover perfect coffee recipes made by the community

• 
  BeanBook: AI Coffee Tracker2025 · ▲105

  Scan, log, explore coffee & recipes

• 
  CoffeeHub2025 · ▲233

  The easiest way to book time with professionals you admire

• 
  Brewtime2022 · ▲73

  Coffee tracking for weird coffee people

• 
  Brew Log, by Crema.co2016 · ▲84

  Your coffee palate, visualized.

• TL
  The load-bearing vocabulary of Claude▲703

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

• 
  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

• 
  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

  Life & fun · 28d ago · solouno.io

• 
  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

• 
  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

• 
  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

• 
  Guideflow▲1,341

  The AI demo automation platform for SaaS

  AI · Nov 2025 · guideflow.com

• IB
  I built a synth for my daughter▲1,278

  Life & fun · Nov 2025 · bitsnpieces.dev

• 
  Welltory▲1,030

  Stop energy drain

  Work · Nov 2025 · welltory.com

• 
  Gemini 3▲1,007

  Bring any idea to life with multimodal capabilities

  AI · Nov 2025 · blog.google

• 
  TrustMRR▲836

  The database of verified startup revenues

  Growth · Nov 2025 · trustmrr.com

• B
  Boing▲782

  Life & fun · Nov 2025 · boing.greg.technology