The libarchive project develops a portable, efficient C library that can read and write streaming archives in a variety of formats. It also includes implementations of the common tar, cpio, and zcat command-line tools that use the libarchive library.
<ul>
<li>libarchive: a library for reading and writing streaming archives</li>
<li>tar: the 'bsdtar' program is a full-featured 'tar' implementation built on libarchive</li>
<li>cpio: the 'bsdcpio' program is a different interface to essentially the same functionality</li>
<li>cat: the 'bsdcat' program is a simple replacement tool for zcat, bzcat, xzcat, and such</li>
<li>examples: Some small example programs that you may find useful.</li>
<li>examples/minitar: a compact sample demonstrating use of libarchive.</li>
<li>contrib: Various items sent to me by third parties; please contact the authors with any questions.</li>
</ul>

The libarchive project develops a portable, efficient C library that can read and write streaming archives in a variety of formats. It also includes implementations of the common tar, cpio, and zcat command-line tools that use the libarchive library.

Libarchive - C library and command-line tools for reading and writing tar, cpio, zip, ISO, and other

NAXSI means Nginx Anti XSS & SQL Injection. NAXSI is an open-source, high performance, low rules maintenance WAF for NGINX. Technically, it is a third party nginx module, available as a package for many UNIX-like platforms. This module, by default, reads a small subset of simple (and readable) rules containing 99% of known patterns involved in website vulnerabilities. For example, <, | or drop are not supposed to be part of a URI.
 
Contrary to most Web Application Firewalls, Naxsi doesn't rely on a signature base like an antivirus, and thus cannot be circumvented by an "unknown" attack pattern.

NAXSI means Nginx Anti XSS & SQL Injection. NAXSI is an open-source, high performance, low rules maintenance WAF for NGINX. Technically, it is a third party nginx module, available as a package for many UNIX-like platforms. This module, by default, reads a small subset of simple (and readable) rules containing 99% of known patterns involved in website vulnerabilities. For example, <, | or drop are not supposed to be part of a URI.

NAXSI - High performance, low rules maintenance WAF for NGINX

Themis is open-source high-level cryptographic services library for mobile and server platforms, providing secure messaging and secure data storage. Themis provides three important cryptographic services Secure messaging, Secure session and Secure storage. 
 
<ul>
<li>
Secure Message: a simple encrypted messaging solution for the widest scope of applications. Exchange the keys between the parties and you're good to go. Two pairs of the underlying crytosystems: ECC + ECDSA / RSA + PSS + PKCS#7. </li>
<li>
Secure Session: session-oriented, forward secrecy datagram exchange solution with better security guarantees, but more demanding infrastructure. Secure Session can perfectly function as socket encryption, session security, or (with some additional infrastructure) as a high-level messaging primitive. ECDH key agreement, ECC & AES encryption.</li>
<li>
Secure Cell: a multi-mode cryptographic container suitable for storing anything from encrypted files to database records and format-preserved strings. Secure Cell is built around AES in GCM (Token and Seal modes) and CTR (Context imprint mode).</li>
<li>
Secure Comparator: a Zero-Knowledge based cryptographic protocol for authentication and comparing secrets.</li>
</ul>

Themis is open-source high-level cryptographic services library for mobile and server platforms, providing secure messaging and secure data storage. Themis provides three important cryptographic services Secure messaging, Secure session and Secure storage. 

Themis - Crypto library for storage and messaging for ObjC, Android, C++, JS, Python, Ruby and PHP

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license.
Enjoy the freedom of using your software wherever you want, the way you want it, in a world where
interoperability can finally liberate your computing experience.

FreeRDP - A Remote Desktop Protocol Implementation

LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program. 

LibVNC - Easily implement VNC server or client functionality in your program

MuPDF is a lightweight PDF, XPS, and E-book viewer. It renders text with metrics and spacing accurate to within fractions of a pixel for the highest fidelity in reproducing the look of a printed page on screen. It supports PDF 1.7 with transparency, encryption, hyperlinks, annotations, searching and more. The viewer is small, fast, yet complete. It supports many document formats, such as PDF, XPS, OpenXPS, CBZ, EPUB, and FictionBook 2. You can annotate PDF documents and fill out forms with the mobile viewers (this feature is coming soon to the desktop viewer as well).

MuPDF - A Lightweight PDF, XPS and E-book viewer

Sophia is RAM-Disk hybrid storage. It is designed to provide best possible on-disk performance without degradation in time. It has guaranteed O(1) worst case complexity for read, write and range scan operations. It provides Full ACID compliancy, MVCC engine, Optimistic, non-blocking concurrency with N-writers and M-readers, Prefix search, Automatic key-expire, Implemented as small C-written library with zero dependencies and lot more.

Sophia - Advanced transactional MVCC key-value/row storage library

Performance Co-Pilot (PCP) provides a framework and services to support system-level performance monitoring and management. It presents a unifying
abstraction for all of the performance data in a system, and many tools for interrogating, retrieving and processing that data. The distributed PCP
architecture makes it especially useful for those seeking centralized monitoring of distributed processing.

Performance Co-Pilot - System Performance and Analysis Framework.

getdns is an implementation of a modern asynchronous DNS API; the specification was originally edited by Paul Hoffman. It is intended to make all types of DNS information easily available to application developers and non-DNS experts. 

getdns - A modern asynchronous DNS API

jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. It is intended for use as the system-provided memory allocator, as in FreeBSD's libc library, as well as for linking into C/C++ applications. jemalloc provides many introspection, memory management, and tuning features beyond the standard allocator functionality. 

jemalloc - Scalable, Concurrent, Malloc Implementation

Choqok is a Free/Open Source micro-blogging client by the KDE community. It currently features Twitter, Pump.IO micro-blogging service, GNU Social websites, Friendica websites, Support for send and receive direct messages, KWallet integration.Flickr, ImageShack, Twitpic, Twitgoo, Mobypicture and Posterous photo uploading and lot more.

Choqok - Micro-blogging client by the KDE community

The virt-manager application is a desktop user interface for managing virtual machines through libvirt. It primarily targets KVM VMs, but also manages Xen and LXC (linux containers). It presents a summary view of running domains, their live performance & resource utilization statistics. Wizards enable the creation of new domains, and configuration & adjustment of a domain’s resource allocation & virtual hardware. An embedded VNC and SPICE client viewer presents a full graphical console to the guest domain.

Virt Manager - Desktop tool for managing virtual machines via libvirt

PgBouncer is  a lightweight connection pooler for PostgreSQL. It supports Session pooling, Transaction pooling, Statement pooling. It is not tied to one backend server. The destination databases can reside on different hosts. It has low memory requirements (2 kB per connection by default). This is because PgBouncer does not need to see full packets at once. 

PgBouncer - Lightweight connection pooler for PostgreSQL

FreeRTOS is an open source, real-time operating system for microcontrollers that makes small, low-power edge devices easy to program, deploy, secure, connect, and manage. This includes securely connecting your small, low-power devices to AWS cloud services like AWS IoT Core or to more powerful edge devices running AWS IoT Greengrass. FreeRTOS is built with an emphasis on reliability and ease of use.
 
A microcontroller contains a simple, resource-constrained processor that can be found in many devices, including appliances, sensors, fitness trackers, industrial automation, and automobiles. Many of these small devices can benefit from connecting to the cloud or locally to other devices, but have limited compute power and memory capacity and typically perform simple, functional tasks. Microcontrollers frequently run operating systems that may not have built-in functionality to connect to local networks or the cloud, making IoT applications a challenge. FreeRTOS helps solve this problem by providing the kernel to run low-power devices as well as software libraries that make it easy to securely connect to the cloud or other edge devices, so you can collect data from them for IoT applications and take action.

FreeRTOS is an open source, real-time operating system for microcontrollers that makes small, low-power edge devices easy to program, deploy, secure, connect, and manage. This includes securely connecting your small, low-power devices to AWS cloud services like AWS IoT Core or to more powerful edge devices running AWS IoT Greengrass. FreeRTOS is built with an emphasis on reliability and ease of use.

Amazon FreeRTOS - Cloud-native IoT operating system for microcontrollers

pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality. Data and attributes can be modified by many clients, like QGIS through JDBC, ODBC, or directly using Pl/pgSQL. The clients can either be PCs or mobile devices. Data changes can be reflected instantaneously through the routing engine. There is no need for precalculation. The “cost” parameter can be dynamically calculated through SQL and its value can come from multiple fields or tables.
 
pgRouting library contains following features:
<ul>
<li>All Pairs Shortest Path, Johnson’s Algorithm</li>
<li>All Pairs Shortest Path, Floyd-Warshall Algorithm</li>
<li>Shortest Path A*</li>
<li>Bi-directional Dijkstra Shortest Path</li>
<li>Bi-directional A* Shortest Path</li>
<li>Shortest Path Dijkstra</li>
<li>Driving Distance</li>
<li>K-Shortest Path, Multiple Alternative Paths</li>
<li>K-Dijkstra, One to Many Shortest Path</li>
<li>Traveling Sales Person</li>
<li>Turn Restriction Shortest Path (TRSP)</li>
</ul>

pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality.  Data and attributes can be modified by many clients, like QGIS through JDBC, ODBC, or directly using Pl/pgSQL. The clients can either be PCs or mobile devices. Data changes can be reflected instantaneously through the routing engine. There is no need for precalculation. The “cost” parameter can be dynamically calculated through SQL and its value can come from multiple fields or tables.

pgRouting  - Extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality

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