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additional tutorials  added
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<!--
Thanks for contributing! Tutorial in this list should provide a guided path for learners, either through a step-by-step article or by breaking down code into multiple digestible parts that are easy to follow. Please submit only programming tutorials.
Thanks for contributing! Tutorial in this list should provide a guided path for learners, either through a step-by-step article or by breaking down code into multiple digestible parts that are easy to follow. Please submit only programming tutorials that build something interesting from scratch; no frameworks, libraries, guides for frameworks/libraries or tutorials that glue just other libraries together.
-->
### Main programming language
@ -19,7 +19,7 @@ Thanks for contributing! Tutorial in this list should provide a guided path for
* [ ] Command-Line Tool
* [ ] Database
* [ ] Docker
* [ ] Emulator
* [ ] Emulator / Virtual Machine
* [ ] Front-end Framework / Library
* [ ] Game
* [ ] Git

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@ -12,7 +12,7 @@
* [Command-Line Tool](#build-your-own-command-line-tool)
* [Database](#build-your-own-database)
* [Docker](#build-your-own-docker)
* [Emulator](#build-your-own-emulator)
* [Emulator / Virtual Machine](#build-your-own-emulator--virtual-machine)
* [Front-end Framework / Library](#build-your-own-front-end-framework--library)
* [Game](#build-your-own-game)
* [Git](#build-your-own-git)
@ -39,6 +39,8 @@
* [**C++**: _Introduction to Ray Tracing: a Simple Method for Creating 3D Images_](https://www.scratchapixel.com/lessons/3d-basic-rendering/introduction-to-ray-tracing/how-does-it-work)
* [**C++**: _How OpenGL works: software rendering in 500 lines of code_](https://github.com/ssloy/tinyrenderer/wiki)
* [**C++**: _Raycasting engine of Wolfenstein 3D_](http://lodev.org/cgtutor/raycasting.html)
* [**C++**: _Physically Based Rendering:From Theory To Implementation_](http://www.pbr-book.org/)
* [**C++**: _Rasterization: a Practical Implementation_](https://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation/overview-rasterization-algorithm)
* [**C# / TypeScript / JavaScript**: _Learning how to write a 3D soft engine from scratch in C#, TypeScript or JavaScript_](https://www.davrous.com/2013/06/13/tutorial-series-learning-how-to-write-a-3d-soft-engine-from-scratch-in-c-typescript-or-javascript/)
* [**Java / JavaScript**: _Build your own 3D renderer_](https://avik-das.github.io/build-your-own-raytracer/)
* [**Java**: _How to create your own simple 3D render engine in pure Java_](http://blog.rogach.org/2015/08/how-to-create-your-own-simple-3d-render.html)
@ -53,11 +55,12 @@
* [**C#**: _AR Portal Tutorial with Unity_](https://www.youtube.com/playlist?list=PLPCqNOwwN794Gz5fzUSi1p4OqLU0HTmvn) [video]
* [**C#**: _How to create a Dragon in Augmented Reality in Unity ARCore_](https://fr-film.net/v-how-to-create-a-dragon-in-augmented-reality-in-unity-arcore-tutorial-qTSDPkPyPqs.html) [video]
* [**C#**: _How to Augmented Reality AR Tutorial: ARKit Portal to the Upside Down_](https://www.youtube.com/watch?v=Z5AmqMuNi08) [video]
* [**Python**: _Augmented Reality with Python and OpenCV_](https://bitesofcode.wordpress.com/2017/09/12/augmented-reality-with-python-and-opencv-part-1/)
#### Build your own `BitTorrent Client`
* [**C#**: _Building a BitTorrent client from scratch in C#_](https://www.seanjoflynn.com/research/bittorrent.html)
* [**Nim**: _Writing a Bencode Parser_](https://xmonader.github.io/nimdays/day2_bencode.html#cid4)
* [**Nim**: _Writing a Bencode Parser_](https://xmonader.github.io/nimdays/day02_bencode.html)
* [**Node.js**: _Write your own bittorrent client_](https://allenkim67.github.io/programming/2016/05/04/how-to-make-your-own-bittorrent-client.html)
* [**Python**: _A BitTorrent client in Python 3.5_](http://markuseliasson.se/article/bittorrent-in-python/)
@ -68,6 +71,7 @@
* [**Crystal**: _Write your own blockchain and PoW algorithm using Crystal_](https://medium.com/@bradford_hamilton/write-your-own-blockchain-and-pow-algorithm-using-crystal-d53d5d9d0c52)
* [**Go**: _Building Blockchain in Go_](https://jeiwan.cc/posts/building-blockchain-in-go-part-1/)
* [**Go**: _Code your own blockchain in less than 200 lines of Go_](https://medium.com/@mycoralhealth/code-your-own-blockchain-in-less-than-200-lines-of-go-e296282bcffc)
* [**Go**: _Building A Simple Blockchain with Go_](https://www.codementor.io/codehakase/building-a-simple-blockchain-with-go-k7crur06v)
* [**Java**: _Creating Your First Blockchain with Java_](https://medium.com/programmers-blockchain/create-simple-blockchain-java-tutorial-from-scratch-6eeed3cb03fa)
* [**JavaScript**: _A cryptocurrency implementation in less than 1500 lines of code_](https://github.com/conradoqg/naivecoin)
* [**JavaScript**: _Build your own Blockchain in JavaScript_](https://github.com/nambrot/blockchain-in-js)
@ -80,7 +84,9 @@
* [**Python**: _A Practical Introduction to Blockchain with Python_](http://adilmoujahid.com/posts/2018/03/intro-blockchain-bitcoin-python/)
* [**Python**: _Let’s Build the Tiniest Blockchain_](https://medium.com/crypto-currently/lets-build-the-tiniest-blockchain-e70965a248b)
* [**Ruby**: _Programming Blockchains Step-by-Step (Manuscripts Book Edition)_](https://github.com/yukimotopress/programming-blockchains-step-by-step)
* [**Scala**: _How to build a simple actor-based blockchain_](https://medium.freecodecamp.org/how-to-build-a-simple-actor-based-blockchain-aac1e996c177)
* [**TypeScript**: _Naivecoin: a tutorial for building a cryptocurrency_](https://lhartikk.github.io/)
* [**TypeScript**: _NaivecoinStake: a tutorial for building a cryptocurrency with the Proof of Stake consensus_](https://naivecoinstake.learn.uno/)
#### Build your own `Bot`
@ -90,14 +96,17 @@
* [**Node.js**: _How to make a responsive telegram bot_](https://www.sohamkamani.com/blog/2016/09/21/making-a-telegram-bot/)
* [**Node.js**: _Create a Discord bot_](https://discordjs.guide/)
* [**Node.js**: _gifbot - Building a GitHub App_](https://blog.scottlogic.com/2017/05/22/gifbot-github-integration.html)
* [**Node.js**: _Building A Simple AI Chatbot With Web Speech API And Node.js_](https://www.smashingmagazine.com/2017/08/ai-chatbot-web-speech-api-node-js/)
* [**Python**: _Chatbot Fundamentals: An interactive guide to writing bots in Python_](https://apps.worldwritable.com/tutorials/chatbot/)
* [**Python**: _How to Build Your First Slack Bot with Python_](https://www.fullstackpython.com/blog/build-first-slack-bot-python.html)
* [**Python**: _How to build a Slack Bot with Python using Slack Events API & Django under 20 minute_](https://medium.com/freehunch/how-to-build-a-slack-bot-with-python-using-slack-events-api-django-under-20-minute-code-included-269c3a9bf64e)
* [**Python**: _Build a Reddit Bot_](http://pythonforengineers.com/build-a-reddit-bot-part-1/)
* [**Python**: _How To Make A Reddit Bot_](https://www.youtube.com/watch?v=krTUf7BpTc0) [video]
* [**Python**: _How To Create a Telegram Bot Using Python_](https://khashtamov.com/en/how-to-create-a-telegram-bot-using-python/)
* [**Python**: _Create a Twitter Bot in Python Using Tweepy_](https://medium.freecodecamp.org/creating-a-twitter-bot-in-python-with-tweepy-ac524157a607)
* [**Python**: _Creating Reddit Bot with Python & PRAW_](https://www.youtube.com/playlist?list=PLIFBTFgFpoJ9vmYYlfxRFV6U_XhG-4fpP) [video]
* [**R**: _Build A Cryptocurrency Trading Bot with R_](https://towardsdatascience.com/build-a-cryptocurrency-trading-bot-with-r-1445c429e1b1)
* [**Rust**: _A bot for Starcraft in Rust, C or any other language_](https://habr.com/en/post/436254/)
#### Build your own `Command-Line Tool`
@ -106,7 +115,7 @@
* [**Go**: _Build a command line app with Go: lolcat_](https://flaviocopes.com/go-tutorial-lolcat/)
* [**Go**: _Building a cli command with Go: cowsay_](https://flaviocopes.com/go-tutorial-cowsay/)
* [**Go**: _Go CLI tutorial: fortune clone_](https://flaviocopes.com/go-tutorial-fortune/)
* [**Nim**: _Writing a stow alternative to manage dotfiles_](https://xmonader.github.io/nimdays/day6_nistow.html#cid16)
* [**Nim**: _Writing a stow alternative to manage dotfiles_](https://xmonader.github.io/nimdays/day06_nistow.html)
#### Build your own `Database`
@ -122,17 +131,23 @@
#### Build your own `Docker`
* [**C**: _Linux containers in 500 lines of code_](https://blog.lizzie.io/linux-containers-in-500-loc.html)
* [**C++**: _Creating your own containers_](http://cesarvr.github.io/post/2018-05-22-create-containers/)
* [**Go**: _Build Your Own Container Using Less than 100 Lines of Go_](https://www.infoq.com/articles/build-a-container-golang)
* [**Go**: _Building a container from scratch in Go_](https://www.youtube.com/watch?v=Utf-A4rODH8) [video]
* [**Python**: _A workshop on Linux containers: Rebuild Docker from Scratch_](https://github.com/Fewbytes/rubber-docker)
* [**Python**: _A proof-of-concept imitation of Docker, written in 100% Python_](https://github.com/tonybaloney/mocker)
* [**Shell**: _Docker implemented in around 100 lines of bash_](https://github.com/p8952/bocker)
#### Build your own `Emulator`
#### Build your own `Emulator / Virtual Machine`
* [**C**: _Virtual machine in C_](https://blog.felixangell.com/virtual-machine-in-c/)
* [**C**: _Write your Own Virtual Machine_](https://justinmeiners.github.io/lc3-vm/)
* [**C**: _Writing a Game Boy emulator, Cinoop_](https://cturt.github.io/cinoop.html)
* [**C++**: _How to write an emulator (CHIP-8 interpreter)_](http://www.multigesture.net/articles/how-to-write-an-emulator-chip-8-interpreter/)
* [**C++**: _Emulation tutorial (CHIP-8 interpreter)_](http://www.codeslinger.co.uk/pages/projects/chip8.html)
* [**C++**: _Emulation tutorial (GameBoy emulator)_](http://www.codeslinger.co.uk/pages/projects/gameboy.html)
* [**C++**: _Emulation tutorial (Master System emulator)_](http://www.codeslinger.co.uk/pages/projects/mastersystem/memory.html)
* [**Common Lisp**: _CHIP-8 in Common Lisp_](http://stevelosh.com/blog/2016/12/chip8-cpu/)
* [**JavaScript**: _GameBoy Emulation in JavaScript_](http://imrannazar.com/GameBoy-Emulation-in-JavaScript)
* [**Python**: _Emulation Basics: Write your own Chip 8 Emulator/Interpreter_](http://omokute.blogspot.com.br/2012/06/emulation-basics-write-your-own-chip-8.html)
@ -140,19 +155,19 @@
* [**JavaScript**: _WTF is JSX (Let's Build a JSX Renderer)_](https://jasonformat.com/wtf-is-jsx/)
* [**JavaScript**: _A DIY guide to build your own React_](https://github.com/hexacta/didact)
* [**JavaScript**: _Reverse Engineering React_](https://vimeo.com/album/3930691)
* [**JavaScript**: _Reverse Engineering React_](https://vimeo.com/album/3930691) [video]
* [**JavaScript**: _Building React From Scratch_](https://www.youtube.com/watch?v=_MAD4Oly9yg) [video]
* [**JavaScript**: _Building Your Own React Clone in Five Easy Steps_](https://blog.javascripting.com/2016/10/05/building-your-own-react-clone-in-five-easy-steps/)
* [**JavaScript**: _Gooact: React in 160 lines of JavaScript_](https://medium.com/@sweetpalma/gooact-react-in-160-lines-of-javascript-44e0742ad60f)
* [**JavaScript**: _React Internals_](http://www.mattgreer.org/articles/react-internals-part-one-basic-rendering/)
* [**JavaScript**: _Build your own Vuejs_](https://github.com/jsrebuild/build-your-own-vuejs)
* [**JavaScript**: _Learn how React Reconciler package works by building your own lightweight React DOM_](https://hackernoon.com/learn-you-some-custom-react-renderers-aed7164a4199)
* [**JavaScript**: _Build Yourself a Redux_](https://zapier.com/engineering/how-to-build-redux/)
* [**JavaScript**: _Let’s Write Redux!_](https://www.jamasoftware.com/blog/lets-write-redux/)
* [**JavaScript**: _Redux: Implementing Store from Scratch_](https://egghead.io/lessons/react-redux-implementing-store-from-scratch)
* [**JavaScript**: _Redux: Implementing Store from Scratch_](https://egghead.io/lessons/react-redux-implementing-store-from-scratch) [video]
* [**JavaScript**: _Build Your own Simplified AngularJS in 200 Lines of JavaScript_](https://blog.mgechev.com/2015/03/09/build-learn-your-own-light-lightweight-angularjs/)
* [**JavaScript**: _Make Your Own AngularJS_](http://teropa.info/blog/2013/11/03/make-your-own-angular-part-1-scopes-and-digest.html)
* [**JavaScript**: _How to write your own Virtual DOM_](https://medium.com/@deathmood/how-to-write-your-own-virtual-dom-ee74acc13060)
* [**JavaScript**: _Building a frontend framework, from scratch, with components_](https://github.com/mfrachet/create-frontend-framework)
* [**JavaScript**: _Building a frontend framework, from scratch, with components (templating, state, VDOM)_](https://mfrachet.github.io/create-frontend-framework/)
#### Build your own `Game`
@ -168,7 +183,6 @@
* [**C**: _A tutorials for a basic Invaders game made in C with GTK: and OpenGL_](https://dashgl.com/Invaders/)
* [**C**: _Astroids Tutorial written in C using GTK with OpenGL and DashGL for matrix manipulation_](https://dashgl.com/Astroids/)
* [**C**: _On Tetris and Reimplementation_](https://brennan.io/2015/06/12/tetris-reimplementation/)
* [**C++**: _How To Make Minecraft in C++/ OpenGL_](https://www.youtube.com/playlist?list=PLMZ_9w2XRxiZq1vfw1lrpCMRDufe2MKV_) [video]
* [**C++**: _Breakout_](https://learnopengl.com/In-Practice/2D-Game/Breakout)
* [**C++**: _Beginning Game Programming v2.0_](http://lazyfoo.net/tutorials/SDL/)
* [**C++**: _Tetris tutorial in C++ platform independent focused in game logic for beginners_](http://javilop.com/gamedev/tetris-tutorial-in-c-platform-independent-focused-in-game-logic-for-beginners/)
@ -177,6 +191,7 @@
* [**C++**: _Space Invaders from Scratch_](http://nicktasios.nl/posts/space-invaders-from-scratch-part-1.html)
* [**C#**: _Learn C# by Building a Simple RPG_](http://scottlilly.com/learn-c-by-building-a-simple-rpg-index/)
* [**C#**: _Creating a Roguelike Game in C#_](https://roguesharp.wordpress.com/)
* [**C#**: _Build a C#/WPF RPG_](https://scottlilly.com/build-a-cwpf-rpg/)
* [**Go**: _Games With Go_](https://gameswithgo.org/) [video]
* [**Java**: _3D Game Development with LWJGL 3_](https://lwjglgamedev.gitbooks.io/3d-game-development-with-lwjgl/content/)
* [**JavaScript**: _2D breakout game using Phaser_](https://developer.mozilla.org/en-US/docs/Games/Tutorials/2D_breakout_game_Phaser)
@ -184,11 +199,16 @@
* [**JavaScript**: _Developing Games with React, Redux, and SVG_](https://auth0.com/blog/developing-games-with-react-redux-and-svg-part-1/)
* [**JavaScript**: _Build your own 8-Ball Pool game from scratch_](https://www.youtube.com/watch?v=aXwCrtAo4Wc) [video]
* [**JavaScript**: _How to Make Your First Roguelike_](https://gamedevelopment.tutsplus.com/tutorials/how-to-make-your-first-roguelike--gamedev-13677)
* [**JavaScript**: _Think like a programmer: How to build Snake using only JavaScript, HTML & CSS_](https://medium.freecodecamp.org/think-like-a-programmer-how-to-build-snake-using-only-javascript-html-and-css-7b1479c3339e)
* [**Lua**: _BYTEPATH_](https://github.com/SSYGEN/blog/issues/30)
* [**Python**: _Developing Games With PyGame_](https://pythonprogramming.net/pygame-python-3-part-1-intro/)
* [**Python**: _Making Games with Python & Pygame_](https://inventwithpython.com/makinggames.pdf) [pdf]
* [**Python**: _The Complete Roguelike Tutorial_](https://www.youtube.com/playlist?list=PLKUel_nHsTQ1yX7tQxR_SQRdcOFyXfNAb)
* [**Python**: _The Complete Roguelike Tutorial_](https://www.youtube.com/playlist?list=PLKUel_nHsTQ1yX7tQxR_SQRdcOFyXfNAb) [video]
* [**Python**: _Roguelike Tutorial Revised_](http://rogueliketutorials.com/libtcod/1)
* [**Ruby**: _Developing Games With Ruby_](https://leanpub.com/developing-games-with-ruby/read)
* [**Ruby**: _Ruby Snake_](https://www.diatomenterprises.com/gamedev-on-ruby-why-not/)
* [**Rust**: _Adventures in Rust: A Basic 2D Game_](https://a5huynh.github.io/2018/02/02/adventures-in-rust.html)
* [**Rust**: _Roguelike Tutorial in Rust + tcod_](https://tomassedovic.github.io/roguelike-tutorial/)
#### Build your own `Git`
@ -196,6 +216,7 @@
* [**JavaScript**: _Gitlet_](http://gitlet.maryrosecook.com/docs/gitlet.html)
* [**JavaScript**: _Build GIT - Learn GIT_](https://kushagragour.in/blog/2014/01/build-git-learn-git/)
* [**Python**: _Just enough of a Git client to create a repo, commit, and push itself to GitHub_](https://benhoyt.com/writings/pygit/)
* [**Python**: _Write yourself a Git!_](https://wyag.thb.lt/)
* [**Ruby**: _Rebuilding Git in Ruby_](https://robots.thoughtbot.com/rebuilding-git-in-ruby)
#### Build your own `Network Stack`
@ -207,14 +228,15 @@
#### Build your own `Neural Network`
* [**C#**: _Neural Network OCR_](https://www.codeproject.com/Articles/11285/Neural-Network-OCR)
* [**F#**: _Building Neural Networks in F# _](https://towardsdatascience.com/building-neural-networks-in-f-part-1-a2832ae972e6)
* [**F#**: _Building Neural Networks in F#_](https://towardsdatascience.com/building-neural-networks-in-f-part-1-a2832ae972e6)
* [**Go**: _Build a multilayer perceptron with Golang_](https://made2591.github.io/posts/neuralnetwork)
* [**Go**: _How to build a simple artificial neural network with Go_](https://sausheong.github.io/posts/how-to-build-a-simple-artificial-neural-network-with-go/)
* [**Go**: _Building a Neural Net from Scratch in Go_](https://www.datadan.io/building-a-neural-net-from-scratch-in-go/)
* [**Java**: _Neural Networks: Perceptron_](https://www.youtube.com/watch?v=ntKn5TPHHAk&feature=youtu.be) [video]
* [**Go**: _Building a Neural Net from Scratch in Go_](https://datadan.io/neural-net-with-go)
* [**JavaScript / Java**: _Neural Networks - The Nature of Code_](https://www.youtube.com/playlist?list=PLRqwX-V7Uu6aCibgK1PTWWu9by6XFdCfh) [video]
* [**JavaScript**: _Neural Network implementation in JavaScript, by an example_](https://franpapers.com/en/machine-learning-ai-en/2017-neural-network-implementation-in-javascript-by-an-example/)
* [**JavaScript**: _Neural networks from scratch for JavaScript linguists (Part1 — The Perceptron)_](https://hackernoon.com/neural-networks-from-scratch-for-javascript-linguists-part1-the-perceptron-632a4d1fbad2)
* [**Python**: _A Neural Network in 11 lines of Python_](https://iamtrask.github.io/2015/07/12/basic-python-network/)
* [**Python**: _Implement a Neural Network from Scratch_](https://victorzhou.com/blog/intro-to-neural-networks/)
* [**Python**: _Optical Character Recognition (OCR)_](http://aosabook.org/en/500L/optical-character-recognition-ocr.html)
* [**Python**: _Traffic signs classification with a convolutional network_](https://navoshta.com/traffic-signs-classification/)
* [**Python**: _Generate Music using LSTM Neural Network in Keras_](https://towardsdatascience.com/how-to-generate-music-using-a-lstm-neural-network-in-keras-68786834d4c5)
@ -226,6 +248,7 @@
* [**C**: _Building a software and hardware stack for a simple computer from scratch_](https://www.youtube.com/watch?v=ZjwvMcP3Nf0&list=PLU94OURih-CiP4WxKSMt3UcwMSDM3aTtX) [video]
* [**C**: _Operating Systems: From 0 to 1_](https://tuhdo.github.io/os01/)
* [**C**: _The little book about OS development_](https://littleosbook.github.io/)
* [**C**: _Roll your own toy UNIX-clone OS_](http://jamesmolloy.co.uk/tutorial_html/)
* [**C**: _Kernel 101 – Let’s write a Kernel_](https://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel)
* [**C**: _Kernel 201 – Let’s write a Kernel with keyboard and screen support_](https://arjunsreedharan.org/post/99370248137/kernel-201-lets-write-a-kernel-with-keyboard)
* [**C**: _Build a minimal multi-tasking kernel for ARM from scratch_](https://github.com/jserv/mini-arm-os)
@ -233,9 +256,10 @@
* [**C**: _Malloc tutorial_](https://danluu.com/malloc-tutorial/)
* [**C**: _Hack the virtual memory_](https://blog.holbertonschool.com/hack-the-virtual-memory-c-strings-proc/)
* [**C**: _Learning operating system development using Linux kernel and Raspberry Pi_](https://github.com/s-matyukevich/raspberry-pi-os)
* [**C**: _Operating systems development for Dummies_](https://medium.com/@lduck11007/operating-systems-development-for-dummies-3d4d786e8ac)
* [**C++**: _Write your own Operating System_](https://www.youtube.com/playlist?list=PLHh55M_Kq4OApWScZyPl5HhgsTJS9MZ6M) [video]
* [**C++**: _Writing a Bootloader_](http://3zanders.co.uk/2017/10/13/writing-a-bootloader/)
* [**Rust**: _Writing an OS in Rust_](https://os.phil-opp.com/first-edition/)
* [**Rust**: _Writing an OS in Rust_](https://os.phil-opp.com/)
#### Build your own `Physics Engine`
@ -253,13 +277,17 @@
#### Build your own `Programming Language`
* [**(any)**: _mal - Make a Lisp_](https://github.com/kanaka/mal#mal---make-a-lisp)
* [**Assembly**: _Jonesforth_](https://github.com/nornagon/jonesforth/blob/master/jonesforth.S)
* [**C**: _Baby's First Garbage Collector_](http://journal.stuffwithstuff.com/2013/12/08/babys-first-garbage-collector/)
* [**C**: _Build Your Own Lisp: Learn C and build your own programming language in 1000 lines of code_](http://www.buildyourownlisp.com/)
* [**C**: _Writing a Simple Garbage Collector in C_](http://maplant.com/gc.html)
* [**C**: _C interpreter that interprets itself._](https://github.com/lotabout/write-a-C-interpreter)
* [**C**: _A C & x86 version of the "Let's Build a Compiler" by Jack Crenshaw_](https://github.com/lotabout/Let-s-build-a-compiler)
* [**C++**: _Writing Your Own Toy Compiler Using Flex_](https://gnuu.org/2009/09/18/writing-your-own-toy-compiler/)
* [**C++**: _How to Create a Compiler_](https://www.youtube.com/watch?v=eF9qWbuQLuw) [video]
* [**C++**: _Kaleidoscope: Implementing a Language with LLVM_](https://llvm.org/docs/tutorial/LangImpl01.html)
* [**F#**: _Understanding Parser Combinators_](https://fsharpforfunandprofit.com/posts/understanding-parser-combinators/)
* [**Elixir**: _Demystifying compilers by writing your own_](https://www.youtube.com/watch?v=zMJYoYwOCd4) [video]
* [**Go**: _The Super Tiny Compiler_](https://github.com/hazbo/the-super-tiny-compiler)
* [**Go**: _Lexical Scanning in Go_](https://www.youtube.com/watch?v=HxaD_trXwRE) [video]
* [**Haskell**: _Let's Build a Compiler_](http://alephnullplex.github.io/cradle/)
@ -270,7 +298,10 @@
* [**Java**: _Creating JVM Language_](http://jakubdziworski.github.io/categories.html#Enkel-ref)
* [**JavaScript**: _The Super Tiny Compiler_](https://github.com/jamiebuilds/the-super-tiny-compiler)
* [**JavaScript**: _The Super Tiny Interpreter_](https://github.com/keyanzhang/the-super-tiny-interpreter)
* [**JavaScript**: _Little Lisp interpreter_](https://maryrosecook.com/blog/post/little-lisp-interpreter)
* [**JavaScript**: _How to implement a programming language in JavaScript_](http://lisperator.net/pltut/)
* [**OCaml**: _Writing a C Compiler_](https://norasandler.com/2017/11/29/Write-a-Compiler.html)
* [**OCaml**: _Writing a Lisp, the series_](https://bernsteinbear.com/blog/lisp/)
* [**Pascal**: _Let's Build a Compiler_](https://compilers.iecc.com/crenshaw/)
* [**Python**: _A Python Interpreter Written in Python_](http://aosabook.org/en/500L/a-python-interpreter-written-in-python.html)
* [**Python**: _lisp.py: Make your own Lisp interpreter_](http://khamidou.com/compilers/lisp.py/)
@ -278,9 +309,12 @@
* [**Python**: _Simple Top-Down Parsing in Python_](http://effbot.org/zone/simple-top-down-parsing.htm)
* [**Python**: _How to Write a Lisp Interpreter in Python_](http://norvig.com/lispy.html)
* [**Python**: _Let’s Build A Simple Interpreter_](https://ruslanspivak.com/lsbasi-part1/)
* [**Python**: _Make Your Own Simple Interpreted Programming Language_](https://www.youtube.com/watch?v=dj9CBS3ikGA&list=PLZQftyCk7_SdoVexSmwy_tBgs7P0b97yD&index=1) [video]
* [**Racket**: _Beautiful Racket: How to make your own programming languages with Racket_](https://beautifulracket.com/)
* [**Ruby**: _A Compiler From Scratch_](https://www.destroyallsoftware.com/screencasts/catalog/a-compiler-from-scratch)
* [**Ruby**: _Markdown compiler from scratch in Ruby_](https://blog.beezwax.net/2017/07/07/writing-a-markdown-compiler/)
* [**Rust**: _So You Want to Build a Language VM_](https://blog.subnetzero.io/post/building-language-vm-part-00/)
* [**Swift**: _Building a LISP from scratch with Swift_](https://www.uraimo.com/2017/02/05/building-a-lisp-from-scratch-with-swift/)
#### Build your own `Regex Engine`
@ -306,9 +340,9 @@
* [**C**: _Let's build a shell!_](https://github.com/kamalmarhubi/shell-workshop)
* [**C**: _Writing a UNIX Shell_](https://indradhanush.github.io/blog/writing-a-unix-shell-part-1/)
* [**C**: _Build Your Own Shell_](https://github.com/tokenrove/build-your-own-shell)
* [**C**: _Writing a shell in C_](https://prakashdanish.github.io/2018/01/15/write-a-shell.html)
* [**Go**: _Writing a simple shell in Go_](https://sj14.gitlab.io/post/2018-07-01-go-unix-shell/)
* [**Ruby**: _A Unix Shell in Ruby_](https://www.jstorimer.com/blogs/workingwithcode/7766107-a-unix-shell-in-ruby)
* [**Rust**: _Build Your Own Shell using Rust_](https://www.joshmcguigan.com/blog/build-your-own-shell-rust/)
#### Build your own `Template Engine`
@ -324,10 +358,10 @@
* [**C++**: _Designing a Simple Text Editor_](http://www.fltk.org/doc-1.1/editor.html)
* [**Python**: _Python Tutorial: Make Your Own Text Editor_](https://www.youtube.com/watch?v=xqDonHEYPgA) [video]
* [**Python**: _Create a Simple Python Text Editor!_](http://www.instructables.com/id/Create-a-Simple-Python-Text-Editor/)
* [**Ruby**: _Build a Collaborative Text Editor Using Rails_](https://blog.aha.io/text-editor/)
#### Build your own `Visual Recognition System`
* [**Python**: _Driver Drowsiness detection using OpenCV and Python_](http://pythonopencv.com/driver-drowsiness-detection-using-opencv-and-python/)
* [**Python**: _Developing a License Plate Recognition System with Machine Learning in Python_](https://blog.devcenter.co/developing-a-license-plate-recognition-system-with-machine-learning-in-python-787833569ccd)
* [**Python**: _Building a Facial Recognition Pipeline with Deep Learning in Tensorflow_](https://hackernoon.com/building-a-facial-recognition-pipeline-with-deep-learning-in-tensorflow-66e7645015b8)
@ -352,8 +386,10 @@
* [**Python**: _Let’s Build A Web Server._](https://ruslanspivak.com/lsbaws-part1/)
* [**Python**: _Web application from scratch_](https://defn.io/2018/02/25/web-app-from-scratch-01/)
* [**Python**: _Building a basic HTTP Server from scratch in Python_](http://joaoventura.net/blog/2017/python-webserver/)
* [**Python**: _Implementing a RESTful Web API with Python & Flask_](http://blog.luisrei.com/articles/flaskrest.html)
* [**Ruby**: _Building a simple websockets server from scratch in Ruby_](http://blog.honeybadger.io/building-a-simple-websockets-server-from-scratch-in-ruby/)
#### Uncategorized
* [**(any)**: _From NAND to Tetris: Building a Modern Computer From First Principles_](http://nand2tetris.org/)
@ -363,12 +399,13 @@
* [**C**: _Writing an SVG Library_](http://www.code-in-c.com/writing-svg-library-c/)
* [**C**: _The very basics of a terminal emulator_](https://www.uninformativ.de/blog/postings/2018-02-24/0/POSTING-en.html)
* [**C**: _Write a System Call_](https://brennan.io/2016/11/14/kernel-dev-ep3/)
* [**C**: _Implementing a virtual machine in C_](https://felixangell.com/blog/implementing-a-virtual-machine-in-c/)
* [**C**: _Sol - An MQTT broker from scratch_](https://codepr.github.io/posts/sol-mqtt-broker)
* [**C++**: _Build your own VR headset for $100_](https://github.com/relativty/Relativ)
* [**C++**: _How X Window Managers work and how to write one_](https://seasonofcode.com/posts/how-x-window-managers-work-and-how-to-write-one-part-i.html)
* [**C++**: _Writing a Linux Debugger_](https://blog.tartanllama.xyz/writing-a-linux-debugger-setup/)
* [**C++**: _How a 64k intro is made_](http://www.lofibucket.com/articles/64k_intro.html)
* [**C#**: _C# Networking: Create a TCP chater server, TCP games, UDP Pong and more_](https://16bpp.net/tutorials/csharp-networking)
* [**C#**: _Loading and rendering 3D skeletal animations from scratch in C# and GLSL_](https://www.seanjoflynn.com/research/skeletal-animation.html)
* [**Clojure**: _Building a spell-checker_](https://bernhardwenzel.com/articles/clojure-spellchecker/)
* [**Java**: _How to Build an Android Reddit App_](https://www.youtube.com/playlist?list=PLgCYzUzKIBE9HUJU-upNvl3TRVAo9W47y) [video]
* [**JavaScript**: _Build Your Own Module Bundler - Minipack_](https://github.com/ronami/minipack)
@ -376,14 +413,24 @@
* [**JavaScript**: _Implementing promises from scratch (TDD way)_](https://www.mauriciopoppe.com/notes/computer-science/computation/promises/)
* [**JavaScript**: _Implement your own — call(), apply() and bind() method in JavaScript_](https://blog.usejournal.com/implement-your-own-call-apply-and-bind-method-in-javascript-42cc85dba1b)
* [**JavaScript**: _JavaScript Algorithms and Data Structures_](https://github.com/trekhleb/javascript-algorithms)
* [**Kotlin**: _Build Your Own Cache_](http://kezhenxu94.me/2018/05/27/Build-Your-Own-Cache/)
* [**Nim**: _Writing a DMIDecode Parser_](https://xmonader.github.io/nimdays/day1_dmidecode.html#cid1)
* [**Nim**: _Writing a INI Parser_](https://xmonader.github.io/nimdays/day5_iniparser.html#cid13)
* [**Nim**: _Writing a Link Checker_](https://xmonader.github.io/nimdays/day4_asynclinkschecker.html#cid10)
* [**Nim**: _Writing a URL Shortening Service_](https://xmonader.github.io/nimdays/day7_shorturl.html#cid20)
* [**Node.js**: _Build a static site generator in 40 lines with Node.js_](https://medium.com/douglas-matoso-english/build-static-site-generator-nodejs-8969ebe34b22)
* [**JavaScript**: _How to Make an Evolutionary Tetris AI_](https://www.youtube.com/watch?v=xLHCMMGuN0Q) [video]
* [**JavaScript**: _Building a Simple URL Shortener With Just HTML and Javascript_](https://palash.tk/Build-URL-Shortener-With-HTML-JS)
* [**JavaScript**: _Build a ride hailing app with React Native_](https://pusher.com/tutorials/ride-hailing-react-native)
* [**Kotlin**: _Build Your Own Cache_](https://github.com/kezhenxu94/cache-lite)
* [**Nim**: _Writing a Redis Protocol Parser_](https://xmonader.github.io/nimdays/day12_resp.html)
* [**Nim**: _Writing a Build system_](https://xmonader.github.io/nimdays/day11_buildsystem.html)
* [**Nim**: _Writing a MiniTest Framework_](https://xmonader.github.io/nimdays/day08_minitest.html)
* [**Nim**: _Writing a DMIDecode Parser_](https://xmonader.github.io/nimdays/day01_dmidecode.html)
* [**Nim**: _Writing a INI Parser_](https://xmonader.github.io/nimdays/day05_iniparser.html)
* [**Nim**: _Writing a Link Checker_](https://xmonader.github.io/nimdays/day04_asynclinkschecker.html)
* [**Nim**: _Writing a URL Shortening Service_](https://xmonader.github.io/nimdays/day07_shorturl.html)
* [**Node.js**: _Build a static site generator in 40 lines with Node.js_](https://www.webdevdrops.com/build-static-site-generator-nodejs-8969ebe34b22/)
* [**Node.js**: _Building A Simple Single Sign On(SSO) Server And Solution From Scratch In Node.js._](https://codeburst.io/building-a-simple-single-sign-on-sso-server-and-solution-from-scratch-in-node-js-ea6ee5fdf340)
* [**Node.js**: _How to create a real-world Node CLI app with Node_](https://medium.freecodecamp.org/how-to-create-a-real-world-node-cli-app-with-node-391b727bbed3)
* [**PHP**: _Write your own MVC from scratch in PHP_ ](https://chaitya62.github.io/2018/04/29/Writing-your-own-MVC-from-Scratch-in-PHP.html)
* [**PHP**: _Make your own blog_](https://ilovephp.jondh.me.uk/en/tutorial/make-your-own-blog)
* [**PHP**: _Modern PHP Without a Framework_](https://kevinsmith.io/modern-php-without-a-framework)
* [**Python**: _Build a Deep Learning Library_](https://www.youtube.com/watch?v=o64FV-ez6Gw) [video]
* [**Python**: _How to Build a Kick-Ass Mobile Document Scanner in Just 5 Minutes_](https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/)
* [**Python**: _Continuous Integration System_](http://aosabook.org/en/500L/a-continuous-integration-system.html)
* [**Python**: _Recommender Systems in Python: Beginner Tutorial_](https://www.datacamp.com/community/tutorials/recommender-systems-python)
@ -391,11 +438,16 @@
* [**Python**: _A Simple Content-Based Recommendation Engine in Python_](http://blog.untrod.com/2016/06/simple-similar-products-recommendation-engine-in-python.html)
* [**Python**: _Stock Market Predictions with LSTM in Python_](https://www.datacamp.com/community/tutorials/lstm-python-stock-market)
* [**Python**: _Build your own error-correction fountain code with Luby Transform Codes_](https://franpapers.com/en/algorithmic/2018-introduction-to-fountain-codes-lt-codes-with-python/)
* [**Python**: _Building a simple Generative Adversial Network (GAN) using Tensorflow_](https://blog.paperspace.com/implementing-gans-in-tensorflow/)
* [**Python**: _Learn ML Algorithms by coding: Decision Trees_](https://lethalbrains.com/learn-ml-algorithms-by-coding-decision-trees-439ac503c9a4)
* [**Python**: _JSON Decoding Algorithm_](https://github.com/cheery/json-algorithm)
* [**Ruby**: _A Pedometer in the Real World_](http://aosabook.org/en/500L/a-pedometer-in-the-real-world.html)
* [**Ruby**: _Creating a Linux Desktop application with Ruby_](https://iridakos.com/tutorials/2018/01/25/creating-a-gtk-todo-application-with-ruby)
* [**Rust**: _Let's build a browser engine_](https://limpet.net/mbrubeck/2014/08/08/toy-layout-engine-1.html)
* [**Rust**: _Building a DNS server in Rust_](https://github.com/EmilHernvall/dnsguide/blob/master/README.md)
* [**Rust**: _Writing Scalable Chat Service from Scratch_](https://nbaksalyar.github.io/2015/07/10/writing-chat-in-rust.html)
* [**TypeScript**: _Make your own GraphQL metrics dashboard_](http://all-loops-considered.org/2018/05/09/graphql-metrics-part-1/)
* [**TypeScript**: _Tiny Package Manager: Learns how npm or Yarn works_](https://github.com/g-plane/tiny-package-manager)
## How to contribute