The Unsplash Book

The world's first 'fully' open source book

Does the same job

FS
Full Stack Lisp – A book in progress about writing Common Lisp apps2016 · fullstacklisp.com · ▲338
LA
Lurnby, a tool for better learning, is now open source2022 · github.com · ▲162
I've been working on Lurnby for 2 years. It's kind of like a mix of pocket + kindle + anki. It lets you => add add epubs, pdfs, and web articles to the app => highlight and add comments => tag and organize highlights => review them with a spaced repetition system Today I made the decision to open source the project. I'm passionate about helping other people learn to learn better and hope that this will allow a lot more innovation in the tool and the space. I'm very new to open source and development in general really, but looking forward to receiving the guidance of the community.
Learn Forward2015 · ▲82
An open source tool for context-aware digital textbooks
OpenSpritz2014 · ▲73
A free speed reading bookmarklet inspired by Spritz
PA
"Programming Algorithms in Lisp” Book2021 · apress.com · ▲232
LS
LinkAce – Self-hosted, FOSS bookmark archive2020 · linkace.org · ▲227

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

Brain.fm▲955
Music for the brain to improve focus, meditation & sleep
AI · 2015 · brain.fm
SP
Something pointless I made▲747
Life & fun · 2015 · dn.ht
PA
Parinfer – a simpler way to write Lisp▲674
Life & fun · 2015 · shaunlebron.github.io
Motion AI▲628
Easily build chatbots to do anything, on any platform!
AI · 2015 · motion.ai
Fieldbook▲595
Create a database, as easily as a spreadsheet
Dev tools · 2015
f.lux for iOS▲590
Auto adjust your iOS display based on the time of day
Dev tools · 2015