oh-some name conflicts

Curated list of projects that have (or even had) a naming conflict with some other project. Is this awesome?

Contents

Fest
https://github.com/alexruiz/fest-assert-2.x assertion framework	https://github.com/mailru/fest javascript templates по руский
conscript
https://github.com/foundweekends/conscript scala launcher	https://github.com/google/conscrypt Java Security Provider
atom
https://tools.ietf.org/html/rfc5023 RSS successor	https://atom.io/ text editor
phoenix
https://phoenix.apache.org database with HBase and SQL	https://github.com/phoenixframework/phoenix elixir web framework
luna
http://www.luna-lang.org programming language	https://github.com/tj/luna another programming language
cats
https://github.com/typelevel/cats functional programming for scala	https://github.com/funcool/cats functional programming for clojure
pony
https://github.com/ponylang/ponyc programming language with actors	https://github.com/ponyorm/pony ORM in python
reactor
https://github.com/reactor Reactive Streams based projects for backpressure-ready asynchronous message passing	http://maven.apache.org/plugins/maven-reactor-plugin multi-module plugin for maven (retired)
gosu
https://github.com/gosu-lang/gosu-lang Programming language on JVM	https://github.com/gosu/gosu 2D game development library
jade
http://jade.tilab.com multiagent system	https://www.npmjs.com/package/jade template language * renamed recently to Pug
go
http://www.go.cd continous delivery server	https://golang.org language from google
rhino
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Rhino JVM based JavaScript dialect	http://www.rhino3d.com 3D modelling lib
crate
https://github.com/ibdknox/crate templating engine in clojure script	https://github.com/copiousfreetime/crate standalone app builder for ruby
crate io
https://github.com/rust-lang/crates.io registry for rust packages	https://github.com/crate/crate elasticsearch based sql-like data storage
blueprint
https://github.com/joshuaclayton/blueprint-css css grid framework	https://github.com/palantir/blueprint react based UI-toolkit
squirrel
http://squirrel-sql.sourceforge.net sql client	https://github.com/hekailiang/squirrel state machine
https://github.com/Squirrel/Squirrel.Windows app installer for Windows	https://github.com/Masterminds/squirrel SQL generator in GO
composure
https://github.com/weavejester/compojure clojure web routing framework	https://github.com/erichs/composure shell scrip crafting framework
jq
https://github.com/stedolan/jq command line JSON processor	https://github.com/Teradata/jaqy SQL client, surprisingly installs itself as jq
https://jquery.com/ jQuery also does fall into this category	https://github.com/timestored/jq JVM implementation of q language
jest
https://github.com/facebook/jest javascript testing framework	https://github.com/searchbox-io/Jest Java ElasticSearch REST client
sputnik
https://github.com/TouK/sputnik static code review tool	https://github.com/szwacz/sputnik desktop RSS reader
poi
https://github.com/apache/poi lib for MS Office manipulation	https://github.com/egoist/poi js framework
machete
https://github.com/cloudfoundry/machete CF buildpack test framework	https://github.com/phatboyg/Machete parsing, querying and processing sophisticated text
https://github.com/PawelLipski/git-machete helper for git rebase
yarn
https://github.com/apache/hadoop/tree/trunk/hadoop-yarn-project hadoop cluster resource management	https://github.com/yarnpkg/yarn dependency manager in javascript ecosystem
spark
https://github.com/apache/spark big data processsing engine	https://github.com/perwendel/spark tiny web framework
https://github.com/holman/spark sparklines for your shell
camel
https://github.com/apache/camel enterprise integration framework	https://github.com/decorators-squad/camel yaml for java
james
https://github.com/apache/james-project mail server	https://github.com/james-proxy/james debugging web proxy
seed
https://github.com/David-OConnor/seed A Rust framework for creating web apps	https://github.com/tindzk/seed build tool for scala projects
arrow
https://github.com/arrow-kt/arrow functional extensions for Kotlin	https://github.com/android10/arrow lightweight toolbox for Java/Android
https://github.com/apache/arrow cross-language development platform for in-memory data	https://github.com/crsmithdev/arrow better dates & times for Python
grin
https://github.com/rkern/grin my favourite ack replacement	https://github.com/mimblewimble/grin blockchain implementation
https://github.com/grin-compiler/grin compiler for functional languages
grub
https://github.com/prezi/grub template engine for new projects	https://www.gnu.org/software/grub/ linux loader
gum
https://github.com/kordamp/gm Gradle/Maven/Bach/JBang/Ant wrapper written in Go	https://github.com/charmbracelet/gum tool for glamorous shell scripts
just
https://github.com/just-js/just small v8 javascript runtime	https://github.com/casey/just command runner
gatling
https://github.com/hashrocket/gatling deploy a bunch of Phoenix(Elixir) apps	https://github.com/gatling/gatling load test tool