Design and implementation of an open-hardware, open-software Uninterruptible Power Supply unit.

Six provides simple utilities for wrapping over differences between Python 2 and Python 3. It is intended to support codebases that work on both Python 2 and 3 without modification. six consists of only one Python file, so it is painless to copy into a project.

Six can be downloaded on PyPi. Its bug tracker and code hosting is on GitHub.

The name, “six”, comes from the fact that 2*3 equals 6. Why not addition? Multiplication is more powerful, and, anyway, “five” has already been snatched away by the (admittedly now moribund) Zope Five project.

A cross-platform C library to retrieve CPU features (such as available instructions) at runtime

Poolmon is a director mailserver pool monitoring script for Dovecot, meant to
roughly duplicate the functionality of node health monitors on dedicated load-
balancers like LVS or F5 BigIP LTM. This script can be safely run on more than
one director host simultaneously, although differences in node reachability may
result in mailserver vhost count flapping.

Consult the help text for more details on functionality.

It’s been 3 months since I first wrote about our efforts to scale Git to extremely large projects and teams with an effort we called “Git Virtual File System”. As a reminder, GVFS, together with a set of enhancements to Git, enables Git to scale to VERY large repos by virtualizing both the .git folder and the working directory. Rather than download the entire repo and checkout all the files, it dynamically downloads only the portions you need based on what you use.

Python is the main scripting language used at Google. This style guide is a list of dos and don'ts for Python programs.

To help you format code correctly, we've created a settings file for Vim[1]. For Emacs, the default settings should be fine.

[1] https://google.github.io/styleguide/google_python_style.vim

The linux-based open-source mobile operating system Android is not only the most popular mobile operating system in the world, it’s also on the way to becoming a proprietary operating system. How is that?

While the core operating system is still released as part of the Android Open Source Project, the majority of core apps are not. It gets worse: More and more libraries and APIs are only available on phones that run various Google apps pre-installed, effectively locking third-party apps to the Google ecosystem. For these reasons Android is described as being a “look but don’t touch” kind of open.

At this point, several popular open-source applications like the secure messenger Signal already require some of Google’s proprietary libraries to be installed. Increasing demand in the free software community in addition to severe problems in Google’s proprietary software discovered by the Android modding community, have led to the development of a free software clone of Google’s proprietary core libraries and applications - the microG Project was born.

Although most microG components are far from complete, users are amazed by the results. Free software users got extended application support, privacy-caring users can reduce or monitor data that is sent to Google and especially older phones can expect some battery life improvements. microG is not only used on real devices, but also replaces Google tools in test emulators and is even used in virtual mobile infrastructure.

There is now a complete Open Source tool chain for some FPGAs from Lattice Semiconductor. For a convincing video that these devices and the Open Source development tools are useful, see:

Introduction to the Open Source FPGA toolchain short or long@32c3 by Clifford Wolf

Forth on icestick by James Bowman

Source Code Pro is a set of OpenType fonts that have been designed to work well in user interface (UI) environments. In addition to a functional OpenType font, this open source project provides all of the source files that were used to build this OpenType font by using the AFDKO makeotf tool.

Fossil is a simple, high-reliability, distributed software configuration management system with these advanced features:

• Integrated Bug Tracking, Wiki, and Technotes - In addition to doing distributed version control like Git and Mercurial, Fossil also supports bug tracking, wiki, and technotes.

• Built-in Web Interface - Fossil has a built-in and intuitive web interface with a rich assortment of information pages (examples) designed to promote situational awareness.

• This entire website¹ is just a running instance of Fossil. The pages you see here are all wiki or embedded documentation. When you clone Fossil from one of its self-hosting repositories, you get more than just source code - you get this entire website. (¹except the download page)

• Self-Contained - Fossil is a single self-contained stand-alone executable. To install, simply download a precompiled binary for Linux, Mac, OpenBSD, or Windows and put it on your $PATH. Easy-to-compile source code is also available.

• Simple Networking - No custom protocols or TCP ports. Fossil uses ordinary HTTP (or HTTPS or SSH) for network communications, so it works fine from behind restrictive firewalls, including proxies. The protocol is bandwidth efficient to the point that Fossil can be used comfortably over dial-up.

• CGI/SCGI Enabled - No server is required, but if you want to set one up, Fossil supports four easy server configurations.

• Autosync - Fossil supports "autosync" mode which helps to keep projects moving forward by reducing the amount of needless forking and merging often associated with distributed projects.

• Robust & Reliable - Fossil stores content using an enduring file format in an SQLite database so that transactions are atomic even if interrupted by a power loss or system crash. Automatic self-checks verify that all aspects of the repository are consistent prior to each commit.

• Free and Open-Source - Uses the 2-clause BSD license.

isoterik extracts a "purified" .iso (UDF) image of a video DVD, devoid of region code. (And CSS encryption.)

When this image is burned to a writable medium, the resulting disc can be played in any DVD player, regardless of region setting -- so you no longer need an extra DVD player just to play imported discs...

privacyIDEA is an open solution for strong two-factor authentication like OTP tokens, SMS, Smartphones or SSH keys. Using privacyIDEA you can enhance your existing applications like local login (PAM, Windows Credential Provider), VPN, remote access, SSH connections, access to web sites or web portals with a second factor during authentication. Thus boosting the security of your existing applications.

A minimalist, opensource online pastebin where the server has zero knowledge of pasted data. Data is encrypted/decrypted in the browser using 256 bits AES.
http://sebsauvage.net/wiki/doku.php?id=php:zerobin

r2 is a rewrite from scratch of radare in order to provide a set of libraries and tools to work with binary files.

Radare project started as a forensics tool, an scriptable commandline hexadecimal editor able to open disk files, but later support for analyzing binaries, disassembling code, debugging programs, attaching to remote gdb servers, ..

github source

Gerrit is a web based code review system, facilitating online code reviews for projects using the Git version control system.

Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer.

Rocket is a new container runtime, designed for composability, security, and speed.