Life & fun · December 29, 2021
Whirrel – The Predictive Crypto Price Index
Does the same job
all alternatives →- CICryptocurrency Index Builder2019 · pandaanalytics.com · ▲37
- TSToken Spread – Bitcoin/crypto spread tracking for arbitrage2017 · tokenspread.com · ▲83
- KBKoinly: Bitcoin and Cryptocurrency Tax Calculator2020 · koinly.io · ▲94
- BABit – A fast and easy Python Bitcoin library2017 · github.com · ▲72
- HLHaskell library for pricing and information on crypto-currencies2017 · github.com · ▲86
- AOAn open source cross-platform minimalistic cryptocurrency tracker2017 · harshjv.github.io · ▲74
More life & fun this month
the category →- TL
Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone
Life & fun · 28d ago · photosynthesis.camera
SoloUno▲310Take control of hair pulling, nail biting & skin picking
Life & fun · 28d ago · solouno.io

Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is


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
Launched alongside, December 2021
the whole month →
Powerful enhanced experience for Twitter
Life & fun · 2021 · blackmagic.so
- IM
Life & fun · 2021 · modernwiki.app

- ETEmoji to Scale▲713
Life & fun · 2021 · javier.xyz

BitsForDigits▲625A partial buyout marketplace free for bootstrapped founders
Commerce · 2021 · flippa.com