tmux is a "terminal multiplexer", it enables a number of terminals (or windows) to be accessed and controlled from a single terminal. tmux is intended to be a simple, modern, BSD-licensed alternative to programs such as GNU screen.

Seafile, lets you store your files and data on a central server and synchronize them with PCs and mobile devices. Seafile synchronizes your data between the Seafile server and the Seafile client applications installed on your laptops, desktops, smartphones, and tablets.

Seafile server is available for Windows and Linux operating systems and the Seafile client application is available for Windows, Mac, Linux, Android, and iOS. In addition to using Seafile clients, you can also use the web interface to access your files and data stored in Seafile server.

Seafile lets you create libraries where you can upload and organize your files. You can sync each library separately. While synchronizing your files, Seafile handles file conflicts, and transfers the data which is not already available in the server preventing unnecessary bandwidth usage. Using Seafile, you can sync your files with two or more servers and the file transfers can be resumed. Also, Seafile comes with full version control mechanism.

Tagxfs is a semantic file system. It extends the user space file system to a tag based hierarchy.
Imagine that you want to add a new folder to your existing folder structure. But semantically it belongs into more locations, e.g. you have the trailer for the movie 'Indiana Jones 4' and existing a folder structure (ref.1.1). It belongs in the folder Adventure and also in 2000s (production year 2008).

TMSU is a tool for tagging your files. It provides a simple command-line tool for applying tags and a virtual filesystem so that you can get a tag-based view of your files from within any other program.

TMSU does not alter your files in any way: they remain unchanged on disk, or on the network, wherever you put them. TMSU maintains its own database and you simply gain an additional view, which you can mount, based upon the tags you set up. The only commitment required is your time and there's absolutely no lock-in.

tagfs - Fuse tag file system. unfortunately it seems be able to tag at directory level only.

Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.

FCL stands for Fuzzy Control Language, which is a standard for Fuzzy Control Programming published by the International Electrotechnical Commission (IEC). The specifications for the FCL syntax can be found in IEC document 61131-7.

Ragel compiles executable finite state machines from regular languages. Ragel targets C, C++, Obj-C, C#, D, Java, Go and Ruby. Ragel state machines can not only recognize byte sequences as regular expression machines do, but can also execute code at arbitrary points in the recognition of a regular language. Code embedding is done using inline operators that do not disrupt the regular language syntax.

neovim is a project that seeks to aggressively refactor vim source code in order to achieve the following goals:

• Simplify maintenance to improve the speed that bug fixes and features get merged.
• Split the work between multiple developers.
• Enable the implementation of new/modern user interfaces without any modifications to the core source.
• Improve the extensibility power with a new plugin architecture based on coprocesses. Plugins will be written in any programming language without needing explicit support from the editor.

By achieving these goals, new developers will be more inclined to join the community, consequently improving the editor for all users.

Probably one of the most if not the most popular mind mapping application for Linux.

In 2008, it was nominated for Best Project category in SourceForge.net's Community Choice Awards. Free mind is written in Java making it portable across multiple platforms. As with other mind mapping software packages, it allows the user to edit a hierarchical set of ideas around a central concept.

git-annex allows managing files with git, without checking the file contents into git. While that may seem paradoxical, it is useful when dealing with files larger than git can currently easily handle, whether due to limitations in memory, time, or disk space.

git-annex is designed for git users who love the command line. For everyone else, the git-annex assistant turns git-annex into an easy to use folder synchroniser.

OpenMarkov is a software tool for probabilistic graphical models (PGMs) developed by the Research Centre for Intelligent Decision-Support Systems of the UNED in Madrid, Spain.

It has been designed for:

• editing and evaluating several types of several types of PGMs, such as Bayesian networks, influence diagrams, factored Markov models, etc.;
• learning Bayesian networks from data interactively;
• cost-effectiveness analysis.

Tails is a live operating system, that you can start on almost any computer from a DVD, USB stick, or SD card. It aims at preserving your privacy and anonymity, and helps you to:

• use the Internet anonymously and circumvent censorship;
• all connections to the Internet are forced to go through the Tor network;
• leave no trace on the computer you are using unless you ask it explicitly;
• use state-of-the-art cryptographic tools to encrypt your files, emails and instant messaging.

Using hedge fund data as an example, this article demonstrates how MATLAB® can be used to automate the process of acquiring and analyzing fraud detection data.

“MMA—Musical MIDI Accompaniment” is an accompaniment generator. It creates MIDI tracks for a soloist to perform over from a user supplied file containing chords and MMA directives.

MMA is very versatile and generates excellent tracks. It comes with an extensive user-extendable library with a variety of patterns for various popular rhythms, detailed user manuals, and several demo songs.

MMA is a command line driven program. It creates MIDI files which are then played by a sequencer or MIDI file play program.

(FuZzy Finder) is a general-purpose command-line finder with fuzzy search/filter capabilities; good integration with vim.

Powerful enough to form a complete studio, fast and light enough to run on low-end hardware like the eeePC or Raspberry Pi, and so responsive and reliable that it can be used live, the Non DAW Studio is a modular system composed of four main parts: Non Timeline, a non-destructive, non-linear audio recorder and arranger. Non Mixer, a live mixer with effects plugin hosting and advanced Ambisonics spatialization control. Non Sequencer, a live, pattern based MIDI sequencer, and finally, the Non Session Manager to tie together these applications and more into cohesive song-level units.

Open source applications make it easy to create, listen to and view digital audio and video content.