# Awesome Awesomeness A curated list of amazingly awesome awesomeness. - Programming Languages Package Manager - [Package-Manager](https://github.com/damon-kwok/awesome-package-manager) - Programming Languages - [Ada(Spark)](https://github.com/ohenley/awesome-ada) - [Ansible](https://github.com/jdauphant/awesome-ansible) - [AutoHotkey](https://github.com/ahkscript/awesome-AutoHotkey) - [AutoIt](https://github.com/J2TeaM/awesome-AutoIt) - [C](https://notabug.org/koz.ross/awesome-c) - [C/C++](https://github.com/fffaraz/awesome-cpp) - [CMake](https://github.com/onqtam/awesome-cmake) - Clojure - [by @mbuczko](https://github.com/mbuczko/awesome-clojure) - [by @razum2um](https://github.com/razum2um/awesome-clojure) - [ColdFusion](https://github.com/seancoyne/awesome-coldfusion) - Common Lisp - [Common Lisp Libraries](https://github.com/CodyReichert/awesome-cl) - [Learning Common Lisp](https://github.com/GustavBertram/awesome-common-lisp-learning-list) - [Coronavirus](https://github.com/soroushchehresa/awesome-coronavirus) - [Crystal](https://github.com/veelenga/awesome-crystal) - [D](https://github.com/zhaopuming/awesome-d) - [Delphi](https://github.com/Fr0sT-Brutal/awesome-delphi) - [Elixir](https://github.com/h4cc/awesome-elixir) - [Elm](https://github.com/isRuslan/awesome-elm) - Erlang - [by @0xAX](https://github.com/0xAX/erlang-bookmarks) - [by @drobakowski](https://github.com/drobakowski/awesome-erlang) - [by @unbalancedparentheses](https://github.com/unbalancedparentheses/spawnedshelter) - [F#](https://github.com/fsprojects/awesome-fsharp) - [Fortran](https://github.com/rabbiabram/awesome-fortran) - [Go](https://github.com/avelino/awesome-go) - [Go Patterns](https://github.com/tmrts/go-patterns) - [Groovy](https://github.com/kdabir/awesome-groovy) - [Haskell](https://github.com/krispo/awesome-haskell) - [Idris](https://github.com/joaomilho/awesome-idris) - [Java](https://github.com/akullpp/awesome-java) - [JavaScript](https://github.com/sorrycc/awesome-javascript) - [Angular 2](https://github.com/AngularClass/awesome-angular) - [Ember.js](https://github.com/nmec/awesome-ember) - [JavaScript Learning Resources](https://github.com/micromata/awesome-javascript-learning) - [Koa](https://github.com/ellerbrock/awesome-koa) - [Node.js](https://github.com/sindresorhus/awesome-nodejs) - [Cross-platform Node.js](https://github.com/bcoe/awesome-cross-platform-nodejs) - [Node ESM](https://github.com/talentlessguy/awesome-node-esm) - [React](https://github.com/enaqx/awesome-react) - [Svelte](https://github.com/flagello/awesome-sveltejs) - [VueJS](https://github.com/vuejs/awesome-vue) - [Julia](https://github.com/svaksha/Julia.jl) - [Kotlin](https://github.com/KotlinBy/awesome-kotlin) - [Kotlin/Native](https://github.com/bipinvaylu/awesome-kotlin-native) - Lua - [by @forhappy](https://github.com/forhappy/awesome-lua) - [by @lewisjellis](https://github.com/LewisJEllis/awesome-lua) - [MongoDB](https://github.com/ramnes/awesome-mongodb) - [MySQL](https://github.com/shlomi-noach/awesome-mysql) - .NET - [by @mehdihadeli](https://github.com/mehdihadeli/awesome-dotnet-core-education) - [by @quozd](https://github.com/quozd/awesome-dotnet) - [by @tallesl](https://github.com/tallesl/net-libraries-that-make-your-life-easier) - [by @thangchung](https://github.com/thangchung/awesome-dotnet-core) - [Nim](https://github.com/VPashkov/awesome-nim) - [OCaml](https://github.com/ocaml-community/awesome-ocaml) - [Perl](https://github.com/hachiojipm/awesome-perl) - [PHP](https://github.com/ziadoz/awesome-php) - [CakePHP](https://github.com/FriendsOfCake/awesome-cakephp) - [Postgres](https://github.com/dhamaniasad/awesome-postgres) - Python - [by @kirang89](https://github.com/kirang89/pycrumbs) - [by @svaksha](https://github.com/svaksha/pythonidae) - [by @trekhleb](https://github.com/trekhleb/learn-python) - [by @vinta](https://github.com/vinta/awesome-python) - [awesome-python-in-education](https://github.com/quobit/awesome-python-in-education) - [R](https://github.com/qinwf/awesome-R) - Ruby - [by @dreikanter](https://github.com/dreikanter/ruby-bookmarks) - [by @markets](https://github.com/markets/awesome-ruby) - [by @Sdogruyol](https://github.com/Sdogruyol/awesome-ruby) - [by @asyraffff](https://github.com/asyraffff/Open-Source-Ruby-and-Rails-Apps) - [Rust](https://github.com/rust-unofficial/awesome-rust) - [SAS](https://github.com/huyingjie/awesome-SAS) - [Scala](https://github.com/lauris/awesome-scala) - [Shell](https://github.com/alebcay/awesome-shell) - Swift - [by @matteocrippa](https://github.com/matteocrippa/awesome-swift) - [by @MaxChen](https://github.com/MaxChen/awesome-swift-and-tutorial-resources) - [by @Wolg](https://github.com/Wolg/awesome-swift) - [from ZEEF by @Edubits](https://swift.zeef.com/robin.eggenkamp) - TypeScript - [by @brookshi](https://github.com/brookshi/awesome-typescript-projects) - [by @dzharii](https://github.com/dzharii/awesome-typescript) - [by @ellerbrock](https://github.com/ellerbrock/awesome-typescript) - [V](https://github.com/vlang/awesome-v) - General - [.htaccess](https://github.com/phanan/htaccess) - Accessibility - [by @a11yproject](https://github.com/a11yproject/a11yproject.com) - [by @brunopulis](https://github.com/brunopulis/awesome-a11y) - [Agile](https://github.com/lorabv/awesome-agile) - [Algolia](https://github.com/algolia/awesome-algolia) - [Algorithms](https://github.com/tayllan/awesome-algorithms) - [Algorithms Visualisation](https://github.com/enjalot/algovis) - [Big O Notation](https://github.com/okulbilisim/awesome-big-o) - [Amazon Web Services](https://github.com/donnemartin/awesome-aws) - [Analytics](https://github.com/onurakpolat/awesome-analytics) - [Android](https://github.com/JStumpp/awesome-android) - [Android Apps](https://github.com/LinuxCafeFederation/awesome-android) - [Android Release Notes](https://github.com/pedronveloso/awesome-android-release-notes) - [Android Security](https://github.com/ashishb/android-security-awesome) - [Android UI](https://github.com/wasabeef/awesome-android-ui) - [ARM Exploitation](https://github.com/HenryHoggard/awesome-arm-exploitation) - [Software Architecture](https://github.com/simskij/awesome-software-architecture) - [Arduino](https://github.com/Lembed/Awesome-arduino) - [Artificial intelligence](https://github.com/owainlewis/awesome-artificial-intelligence) - API - [by @Kikobeats](https://github.com/Kikobeats/awesome-api) - [by @toddmotto](https://github.com/toddmotto/public-apis) - [Apple](https://github.com/joeljfischer/awesome-apple) - [OS X](https://github.com/iCHAIT/awesome-macOS) - [OS X and iOS Security](https://github.com/ashishb/osx-and-ios-security-awesome) - [Beacons](https://github.com/beaconinside/awesome-beacon) - Big data - [by @onurakpolat](https://github.com/onurakpolat/awesome-bigdata) - [by @zenkay](https://github.com/zenkay/bigdata-ecosystem) - [Hadoop](https://github.com/youngwookim/awesome-hadoop) - [Blazor](https://github.com/AdrienTorris/awesome-blazor) - Blockchain - [by @0xtokens](https://github.com/0xtokens/awesome-blockchain) - [by @imbaniac](https://github.com/imbaniac/awesome-blockchain) - [by @coderplex](https://github.com/coderplex/awesome-blockchain) - [by @hitripod](https://github.com/hitripod/awesome-blockchain) - [by @iNiKe](https://github.com/iNiKe/awesome-blockchain) - [by @igorbarinov](https://github.com/igorbarinov/awesome-blockchain) - [by @istinspring](https://github.com/istinspring/awesome-blockchain) - [by @openblockchains](https://github.com/openblockchains/awesome-blockchains) - [by @kennethreitz](https://github.com/kennethreitz/awesome-coins) - [awesome-token-sale](https://github.com/holographicio/awesome-token-sale) - Bitcoin - [by @btcbrdev](https://github.com/btcbrdev/awesome-btcdev) - [by @igorbarinov](https://github.com/igorbarinov/awesome-bitcoin) - [Bitcoin Payment Processors](https://github.com/alexk111/awesome-bitcoin-payment-processors) - Ethereum - [by @vinsgo](https://github.com/vinsgo/awesome-ethereum) - [awesome-ethereum-virtual-machine](https://github.com/pirapira/awesome-ethereum-virtual-machine) - [by @Tom2718](https://github.com/Tom2718/Awesome-Ethereum) - [Ripple](https://github.com/vhpoet/awesome-ripple) - [Boilerplates](https://github.com/melvin0008/awesome-projects-boilerplates) - Books - [Free Programming Books](https://github.com/EbookFoundation/free-programming-books) - [Free Software Testing Books](https://github.com/ligurio/free-software-testing-books) - [Mind Expanding Books](https://github.com/hackerkid/Mind-Expanding-Books) - [Bootstrap](https://github.com/therebelrobot/awesome-bootstrap) - [BSD Software](https://github.com/SaintFenix/Awesome-BSD-Ports-Programs-And-Projects) - [Building Blocks for Web Apps](https://github.com/componently-com/awesome-building-blocks-for-web-apps) - [Web Effect](https://github.com/lindelof/awesome-web-effect) - [Landing Page](https://github.com/nordicgiant2/awesome-landing-page) - [Capacitor](https://github.com/riderx/awesome-capacitor) - [Captcha](https://github.com/ZYSzys/awesome-captcha) - [Challenges](https://github.com/mauriciovieira/awesome-challenges) - [Code Formatters](https://github.com/rishirdua/awesome-code-formatters) - [Community Detection](https://github.com/benedekrozemberczki/awesome-community-detection) - [Competitive Programming](https://github.com/lnishan/awesome-competitive-programming) - [Computer Vision](https://github.com/jbhuang0604/awesome-computer-vision) - [Conferences](https://github.com/RichardLitt/awesome-conferences) - [Continuous Delivery](https://github.com/ciandcd/awesome-ciandcd) - [Conversational UI](https://github.com/mortenjust/awesome-conversational/) - [Cordova](https://github.com/busterc/awesome-cordova) - [Courses](https://github.com/prakhar1989/awesome-courses) - [Creative Commons Media](https://github.com/shime/creative-commons-media) - Cryptography - [by @MaciejCzyzewski](https://github.com/MaciejCzyzewski/retter) - [by @sobolevn](https://github.com/sobolevn/awesome-cryptography) - [by @coinpride](https://github.com/coinpride/CryptoList) - [Crypto Papers](https://github.com/pFarb/awesome-crypto-papers) - [CSS](https://github.com/sotayamashita/awesome-css) - [CSS Frameworks](https://github.com/troxler/awesome-css-frameworks) - [Data Science](https://github.com/bulutyazilim/awesome-datascience) - [Notebooks](https://github.com/jupyter-naas/awesome-notebooks) - Data Science with Python - [by @r0f1](https://github.com/r0f1/datascience) - [by @krzjoa](https://github.com/krzjoa/awesome-python-data-science) - [Data Visualization](https://github.com/fasouto/awesome-dataviz) - [Database](https://github.com/numetriclabz/awesome-db) - [SQLAlchemy](https://github.com/dahlia/awesome-sqlalchemy) - Datasets - [by @caesar0301](https://github.com/caesar0301/awesome-public-datasets) - [by @leomaurodesenv](https://github.com/leomaurodesenv/game-datasets) - Deep Learning - [by @ChristosChristofidis](https://github.com/ChristosChristofidis/awesome-deep-learning) - [by @guillaume-chevalier](https://github.com/guillaume-chevalier/awesome-deep-learning-resources) - [by @tigerneil](https://github.com/tigerneil/awesome-deep-rl) - [by @nerox8664](https://github.com/nerox8664/awesome-computer-vision-models) - [Decision Tree Papers](https://github.com/benedekrozemberczki/awesome-decision-tree-papers) - [Design Patterns](https://github.com/DovAmir/awesome-design-patterns) - [Design Tools](https://github.com/LisaDziuba/Awesome-Design-Tools) - [Design](https://github.com/gztchan/awesome-design) - [Dev Env](https://github.com/jondot/awesome-devenv) - [DevOps](https://github.com/joubertredrat/awesome-devops) - [DevSecOps](https://github.com/TaptuIT/awesome-devsecops) - [Django](https://github.com/wsvincent/awesome-django) - [Docker](https://github.com/veggiemonk/awesome-docker) - [Documentation](https://github.com/PharkMillups/beautiful-docs) - [Dotfiles](https://github.com/webpro/awesome-dotfiles) - [Electron](https://github.com/sindresorhus/awesome-electron) - [Emacs](https://github.com/emacs-tw/awesome-emacs) - [Embedded](https://github.com/nhivp/Awesome-Embedded) - [Ethics](https://github.com/HussainAther/awesome-ethics) - [Falsehood](https://github.com/kdeldycke/awesome-falsehood) - [FastAPI](https://github.com/mjhea0/awesome-fastapi) - [FIRST Robotics Competition](https://github.com/andrewda/awesome-frc) - [Flask](https://github.com/mjhea0/awesome-flask) - [FluidApp Resources](https://github.com/lborgav/awesome-fluidapp) - [Flutter](https://github.com/Solido/awesome-flutter) - [Fonts](https://github.com/brabadu/awesome-fonts) - [Free Open Source Software (FOSS)](https://github.com/ishanvyas22/awesome-open-source-systems) - [Fraud Detection Papers](https://github.com/benedekrozemberczki/awesome-fraud-detection-papers) - [Free Services](https://github.com/ripienaar/free-for-dev) - Frontend - [by @dypsilon](https://github.com/dypsilon/frontend-dev-bookmarks) - [by @moklick](https://github.com/moklick/frontend-stuff) - [Game Development](https://github.com/ellisonleao/magictools) - [Games](https://github.com/leereilly/games) - GIF - [by @Kikobeats](https://github.com/Kikobeats/awesome-gif) - [Gists](https://github.com/vsouza/awesome-gists) - [Git](https://github.com/dictcp/awesome-git) - [GitHub](https://github.com/Kikobeats/awesome-github) - [Browser extensions for GitHub](https://github.com/stefanbuck/awesome-browser-extensions-for-github) - [GitHub - Chinese](https://github.com/AntBranch/awesome-github) - [Gradient Boosting Papers](https://github.com/benedekrozemberczki/awesome-gradient-boosting-papers) - [Graph Classification](https://github.com/benedekrozemberczki/awesome-graph-classification) - [GraphQL](https://github.com/chentsulin/awesome-graphql) - [Growth Hacking](https://github.com/btomashvili/awesome-growth-hacking) - Guides - [by @narkoz](https://github.com/narkoz/guides) - [by @RichardLitt](https://github.com/RichardLitt/awesome-styleguides) - Hacking - [by @carpedm20](https://github.com/carpedm20/awesome-hacking) - [by @Hack-with-Github](https://github.com/Hack-with-Github/Awesome-Hacking) - [HTML5](https://github.com/diegocard/awesome-html5) - [Honeypots](https://github.com/paralax/awesome-honeypots) - [Hyper](https://github.com/bnb/awesome-hyper) - [Incident Response](https://github.com/meirwah/awesome-incident-response) - [Images](https://github.com/heyalexej/awesome-images) - [Image coloring](https://github.com/oskar-j/awesome-image-coloring) - [Internationalization](https://github.com/jpomykala/awesome-i18n) - [Internet of Things (IOT)](https://github.com/HQarroum/awesome-iot) - [iOS](https://github.com/vsouza/awesome-ios) - [Cocoa Controls](https://github.com/v-braun/awesome-cocoa) - [Open Source Apps](https://github.com/dkhamsing/open-source-ios-apps) - [UI](https://github.com/cjwirth/awesome-ios-ui) - [JSON](https://github.com/burningtree/awesome-json) - [Jupyter](https://github.com/markusschanta/awesome-jupyter) - [JVM](https://github.com/deephacks/awesome-jvm) - [Kafka](https://github.com/monksy/awesome-kafka) - [Koans](https://github.com/ahmdrefat/awesome-koans) - [Laravel](https://github.com/chiraggude/awesome-laravel) - [Leadership and Management](https://github.com/LappleApple/awesome-leading-and-managing) - [Lego](https://github.com/adius/awesome-lego) - [Linux Containers](https://github.com/Friz-zy/awesome-linux-containers) - [Linux resources](https://github.com/itech001/awesome-linux-resources) - Lists - [by @bayandin](https://github.com/bayandin/awesome-awesomeness) - [by @jnv](https://github.com/jnv/lists) - [by @sindresorhus](https://github.com/sindresorhus/awesome) - [Mac] - [by @xyNNN](https://github.com/xyNNN/awesome-mac) - [by @justin-j](https://github.com/justin-j/awesome-mac-apps) - [Machine Learning](https://github.com/josephmisiti/awesome-machine-learning) - [Malware Analysis](https://github.com/rshipp/awesome-malware-analysis) - [Material Design](https://github.com/sachin1092/awesome-material) - [Math](https://github.com/rossant/awesome-math) - [Matlab](https://github.com/mikecroucher/awesome-MATLAB) - [Mental Health](https://github.com/dreamingechoes/awesome-mental-health) - [micro:bit](https://github.com/carlosperate/awesome-microbit) - [MLOps](https://github.com/kelvins/awesome-mlops) - [Mobile marketing and development](https://github.com/alec-c4/awesome-mobile) - [Mobile Web Development](https://github.com/myshov/awesome-mobile-web-development) - [Monitoring](https://github.com/crazy-canux/awesome-monitoring) - [Prometheus](https://github.com/roaldnefs/awesome-prometheus) - [Prometheus alerting rules](https://github.com/samber/awesome-prometheus-alerts) - [Monte Carlo Tree Search Papers](https://github.com/benedekrozemberczki/awesome-monte-carlo-tree-search-papers) - [Motion Design for Web](https://github.com/lucasmaiaesilva/awesome-motion-design-web) - [Nginx](https://github.com/fcambus/nginx-resources) - Newsletters - [by @vredniy](https://github.com/vredniy/awesome-newsletters) - [by @webpro](https://github.com/webpro/awesome-newsletters) - [by @mpron](https://github.com/mpron/awesome-newsletters) - [No Login Web Apps](https://github.com/aviaryan/awesome-no-login-web-apps) - [Open Science](https://github.com/silky/awesome-open-science) - [Open Source Photography](https://github.com/ibaaj/awesome-OpenSourcePhotography) - [Papers](https://github.com/papers-we-love/papers-we-love) - [Podcasts](https://github.com/Ghosh/awesome-podcasts) - [Philosophy](https://github.com/HussainAther/awesome-philosophy) - [Pipelines](https://github.com/pditommaso/awesome-pipeline) - [Product Manager](https://github.com/hugo53/awesome-ProductManager) - Protocols - [OSC](https://github.com/amir-arad/awesome-osc) (open sound control) - [Pentest Cheat Sheets](https://github.com/coreb1t/awesome-pentest-cheat-sheets) - [Quick Look Plugins](https://github.com/sindresorhus/quick-look-plugins) - [Random-Forest](https://github.com/kjw0612/awesome-random-forest) - Raspberry Pi - [by @blackout314](https://github.com/blackout314/awesome-raspberry-pi) - [by @thibmaek](https://github.com/thibmaek/awesome-raspberry-pi) - [React Native](https://github.com/jondot/awesome-react-native) - [README](https://github.com/matiassingers/awesome-readme) - [Regex](https://github.com/aloisdg/awesome-regex) - [Remote Job](https://github.com/lukasz-madon/awesome-remote-job) - [Remote Work](https://github.com/hugo53/awesome-RemoteWork) - [REST](https://github.com/marmelab/awesome-rest) - [Robotics](https://github.com/Kiloreux/awesome-robotics) - [Robotic Tooling](https://github.com/protontypes/awesome-robotic-tooling) - [RNN](https://github.com/kjw0612/awesome-rnn) - [Scalability](https://github.com/binhnguyennus/awesome-scalability) - [Science Fiction](https://github.com/sindresorhus/awesome-scifi) - Search Engine Optimization (SEO) - [by @marcobiedermann](https://github.com/marcobiedermann/search-engine-optimization) - [by @sneg55](https://github.com/sneg55/curatedseotools) - [by @teles](https://github.com/teles/awesome-seo) - [Security](https://github.com/sbilly/awesome-security) - [Selfhosted](https://github.com/Kickball/awesome-selfhosted) - [Serverless](https://github.com/anaibol/awesome-serverless) - [Serverless Security](https://github.com/puresec/awesome-serverless-security/) - [Service Fabric](https://github.com/lawrencegripper/awesome-servicefabric) - [Services Engineering](https://github.com/mmcgrana/services-engineering) - [Sheet Music](https://github.com/adius/awesome-sheet-music) - [Slack](https://github.com/matiassingers/awesome-slack) - [Sound](https://github.com/hwclass/awesome-sound) - [Space](https://github.com/elburz/awesome-space) - [Books and manuals](https://github.com/Hunter-Github/awesome-space-books) - [Speech and Natural Language Processing](https://github.com/edobashira/speech-language-processing) - [NLP with Ruby](https://github.com/arbox/nlp-with-ruby) - [Sphinx Documentation](https://github.com/yoloseem/awesome-sphinxdoc) - [Startup](https://github.com/KrishMunot/awesome-startup) - [Static Analysis](https://github.com/mre/awesome-static-analysis/) - [Styleguides](https://github.com/RichardLitt/awesome-styleguides) - [Sublime Text](https://github.com/dreikanter/sublime-bookmarks) - [Sustainable Technology](https://github.com/protontypes/awesome-sustainable-technology) - [SVG](https://github.com/willianjusten/awesome-svg) - [Swedish](https://github.com/gurre/awesome-swedish-opensource) - [Sysadmin](https://github.com/kahun/awesome-sysadmin) - [Taglines](https://github.com/miketheman/awesome-taglines) - [Tailwind CSS](https://github.com/aniftyco/awesome-tailwindcss) - [Talks](https://github.com/JanVanRyswyck/awesome-talks) - [Gaming](https://github.com/hzoo/awesome-gametalks) - [Telegram](https://github.com/ebertti/awesome-telegram) - [Terminals Are Sexy](https://github.com/k4m4/terminals-are-sexy) - [Test Automation](https://github.com/atinfo/awesome-test-automation) - [Testing](https://github.com/TheJambo/awesome-testing) - [JMeter](https://github.com/aliesbelik/awesome-jmeter) - [Threat Intelligence](https://github.com/hslatman/awesome-threat-intelligence) - [Tools](https://github.com/cjbarber/ToolsOfTheTrade) - [Twilio](https://github.com/Twilio-org/awesome-twilio) - [Unity](https://github.com/RyanNielson/awesome-unity) - [UI Styleguide](https://github.com/kevinwuhoo/ui-styleguides) - [UI Components for Styleguide](https://github.com/anubhavsrivastava/awesome-ui-component-library) - [UNIX](https://github.com/sirredbeard/Awesome-UNIX) - [Vagrant](https://github.com/iJackUA/awesome-vagrant) - [Vehicle Security](https://github.com/jaredthecoder/awesome-vehicle-security) - Vim - [by @akrawchyk](https://github.com/akrawchyk/awesome-vim) - [by @matteocrippa](https://github.com/matteocrippa/awesome-vim) - [Vulkan](https://github.com/vinjn/awesome-vulkan) - [Web Performance Optimization](https://github.com/davidsonfellipe/awesome-wpo) - [WebComponents](https://github.com/mateusortiz/webcomponents-the-right-way) - [Wordpress](https://github.com/miziomon/awesome-wordpress) - [Workshops](https://github.com/therebelrobot/awesome-workshopper) - [Xamarin](https://github.com/benoitjadinon/awesome-xamarin) - XMPP - [Ejabberd](https://github.com/shantanu-deshmukh/awesome-ejabberd) - [Typography](https://github.com/Jolg42/awesome-typography) ## License [![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)](https://creativecommons.org/licenses/by/4.0/) This work is licensed under a [Creative Commons Attribution 4.0 International License](http://creativecommons.org/licenses/by/4.0/).