Open Source Software for Linux
Sozi
Sozi is a free and open source, browser-based presentation software using SVG and JavaScript to create animated presentations. Unlike in most presentation applications, a Sozi document is not organised as a slideshow, but rather as a poster where the content of your presentation can be freely laid out. Playing such a presentation consists in a series of translations, zooms and rotations that allow to focus on the elements you want to show.
ArangoDB
ArangoDB is a database system that was designed to support key/value, document, and graph data to be stored together, and queried via a unified language called AQL. The project is developed by ArangoDB GmbH, and released free and open-source under the Apache License 2.0. The universal "native multi-level" design of the database allows for a flexible approach when structuring and building an application, a feature that many have come to love.
OpenBoard
OpenBoard is an interactive whiteboard for schools and universities. With OpenBoard you can use a pen tablet, an interactive whiteboard or even a mouse to write and annotate your course. The software is also designed to be easy to use, yet powerful enough to facilitate most usecases, so that you can focus on your presentation rather than the software itself.
GNOME Disks
GNOME Disks is a free and open-source GUI for the gnome-disk-utility package. GNOME Disks can be used for partition management, monitoring, benchmarking, and software RAID.
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.
Audius Music
Audius is a music streaming and sharing platform that puts power back into the hands of content creators.
Xfce
Xfce is a free and open-source desktop environment for Unix-like platforms, such as Linux, Solaris and BSD.
Haskell
Haskell is a free and open-source purely-functional programming language. The language has been around since the 1990's and has pioneered a number of advanced programming language features such as type classes, which enable type-safe operator overloading. Haskell is an open-source project of more than twenty years of scientific research and provides built-in concurrency and parallelism, debuggers, profilers and rich libraries that can be used to build robust applications while following functional programming patterns.
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.
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.