Open Source Software for Linux
Ricochet
Ricochet is a communications application that uses the Tor network to reach your contacts without relying on messaging servers. It creates a hidden service, which is used to rendezvous with your contacts without revealing your location or IP address. Instead of a username, you get a unique address that looks like ricochet:rs7ce36jsj24ogfw.
AppCenter
AppCenter is the software store that comes bundled with every release of elementary OS. The store allows users of elementary OS to download curated software specifically built for the operating system. The AppCenter operates under a Pay-What-You-Want pricing model which allow developers to earn money from their open-source creations. Anyone is free to create apps for elementary OS as long as they follow the design guide lines provided by the elementary project.
Docker
Docker is an open-source platform that automates deployment and development life cycles with OS-level virtualization. These virtualization are called containers and contain application specific operating system, software and configurations that are built on deployment. Containers are encapsulated and work across systems, be it in local development or on production servers, they run anywhere. Docker provides a Community Edition (CE) and an Enterprise Edition (EE) and can be used for personal and enterprise level projects alike.
Android
Android is a free and open source mobile operating system built on-top of the Linux kernel. The OS is used by over 150 million people world-wide, which makes it the most popular mobile operating system on earth. Android is optimized for how you use your phone, helping you manage conversations, organize your day, and connect with the people that matters most to you.
neo4j
Neo4j is a commercially provided graph database management system developed by Neo4j, Inc. The graph database is fundamentally different to the relational model found in relational database management systems (RDBMS). With Neo4j, each data record, or node, stores direct pointers to all the nodes it's connected to. The database is also designed to perform complex queries with complex connections orders of magnitude faster. Neo4j is ACID-compliant and suited for projects that requires complicated relationship structures.
Bluefish Editor
The Bluefish Editor is a free and powerful editor that is used by programmers and web developers. Bluefish supports a handfull of programming and markup languages including HTML, XHTML, CSS, XML, PHP, C, C++, JavaScript, Java, Go, Vala, Ada, D, SQL, Perl, ColdFusion, JSP, Python and Ruby. The software is developed openly and is released for free under the GNU GPL license.
OpenBazaar
OpenBazaar is a peer to peer marketplace that allow you to do online commerce without middle men. The decentralized application connects you with people directly over a peer to peer network. Allowing you to easily setup a store front and start accepting cryptocurrency for your goods and services. There are no fees involved in transactions with OpenBazaar and the platform support Bitcoin, Bitcoin Cash, Litecoin, and Zcash.
GNU Emacs
GNU Emacs is an extensible and customizable, free and open source text editor. It was created by GNU Project founder Richard Stallman and has been dubbed "the most powerful text editor available today". At the core of GNU Emacs is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Which allows users to extend and customize GNU Emacs to their heart's content.
RetroArch
With RetroArch you can run emulators, game engines, video games, media players and other applications. RetroArch is a free and open-source frontend developed specifically for emulation. RetroArch allows you to play classic games on a wide range of computers and consoles through its slick graphical interface. The project is community developed and the software is released under the GNU General Public License v3.
Keybase
With Keybase you can communicate with friends and co-worker and store your group’s photos, videos, and documents with end-to-end encryption. Keybase is a free and open-source security app for mobile phones and computers.