Free alternative energy sources software for linux

Alternatives system is an implementation of a Debian alternatives system; a system that allows several programs with the same or similar functions to be installed on a single system at the same time.
This implementation solves some problems and limitations of original implementation.
Alternatives architecture
General engine:
- alternatives-auto - turn into auto mode some alternatives item
- alternatives-manual - turn into manual mode some alternatives item
- alternatives-update - update current state of alternatives symlinks
Special scripts for the packages:
- alternatives-install - register new alternatives config, for use in %post package script
- alternatives-uninstall - unregister some alternatives config, for use in %preun package script
ALT Linux specific:
- alternatives-helper - helper script to use in package scripts
- alternatives-upgrade - tool to upgrade from old config format (XML based) to new.
Directories:
- /usr/bin - all scripts live here
- /etc/alternatives/packages.d - all package configs
- /etc/alternatives/auto - symlinks to registered configs
- /etc/alternatives/manual - list of alternatives in manual mode
- /etc/alternatives/links - for internal use only, alternatives symlinks lives here
- /usr/share/alternatives - directory with some helper functions and scripts
Original Debian alternatives implementation has some limitations and problems, so we (ALT Linux Team) rewrite this subsystem. What changes we have made?
- You dont need to give special generic name for altenatives file. This name is autogenerated now.
- This version is written in shell, awk and sed , so we reduce a number of dependencies, therefore, number of the packages in basesystem.
- We use different update model. Original alternatives system maintains its own database, by creating/removing files in system. In our alternatives (rpm) packages contains its configs and places them into generic directory during package installation. After package removal its config is automatically removed. It works like Debian menu subsystem, and its more stable.
- Now we have not any limitations for master-slave hieracly depth.
- New alternatives system works with no groups, but with each item. You can turn into manual mode any available item. There are only one difference between master and slave: weight calculation algorithm. Slave alternative have same weight as a master alternative.
- alternatives-update script corrects invalid manual alternatives, by switching them into auto mode. In original alternatives was situations with broken symlinks. Also new system doesnt create symlinks if target file does not exist. As a result, we also reduce number of broken symlinks.

Black Orion Network is an update and system management platform for among others Black Orions redhat-compatible Enterprise Linux Distributions. Black Orion Enterprise Linux software distributions are offered to you by the open source community as free software.

A program is free software if users are free to redistribute copies, either with or without modifications, either gratis or charging a fee for distribution, to anyone anywhere. Being free to do these things means (among other things) that you do not have to ask or pay for permission. Please feel free to make and redistribute as many copies of Black Orion Enterprise Linux as you like.

How It Works:

1. Obtain Black Orion Enterprise Linux

Obtain one of Black Orions redhat-compatible Enterprise Linux Distributions from the downloads section.

2. Burn cd images

Burn the downloaded iso images on to a cd.

3. Register yourself as a Black Orion Network Member

Register yourself as a member in the Black Orion Network section.

4. Install Black Orion on a computer

Read the manuals for the various installation options. The system can also be installed as a rhel4 virtual machine.

5. Connect your system to the Black Orion Network

Connect your system to the Black Orion Network with the up2date client installed on your system. You can find up2date by right-clicking the Black Orion Network Alert Icon on your desktop. Connect your system with your member name and password (see 3).

MCastDiscovery is a Java library used to advertise and discover services on a network.

Its an alternative to ZeroConf/Rendezvous/Bonjour/mDNS/DNS-SD, and it does not require a running daemon.

MCastDiscovery makes it easy to discover services in a light-weight no-install application, such as one running in Java WebStart. It is not compatible with software like ZeroConf.

HeavenOS is an original, alternative 32-bit operating system for Intel 80386 compatible processors.

It is made with NASM (The Netwide Assembler), and is not intended to compare to modern operating systems, but to try to get the best features and discover better ways to do things.

HeavenOS project is intended to be a simple and pratical platform for development, running with a small amount of code.

Techisa Desktop Environment is a lightweight alternative desktop environment developed using Qt.
The projects goal is to provide users with a comfortable environment using as few resources as possible. Only a Brazillian Portuguese translation is currently available.
Enhancements:
- Better support for KDE desktop files.
- Improved recognition of KDM/GDM sessions.
- New icon search paths.
- Enhancements to the TDE menu.
- Better handling of links and properties.
- TDESU shows correct error codes.
- Thumbnails.
- A tree view in the file browser. tdeopen accepts new parameters: [file name] directly executes a file or associated application, and -f [source] [destination] shows a popup allowing user to copy, move, or link.

Arrowmatcher application is a simple tool for crossbow archers. This ballistic software can calculate the speed, kinetic energy and the trajectory of an arrow (or bullet), and then use these values to calibrate the lead points of a crossbows telescopic sight.
Main features:
- Calculate the velocity and the kinetic energy of the arrow
- Output of the trajectory as a table.
- Output of the devitation of the arrow at a given range.
- Output of the flighttime at a given range.
- Output of the kinetic energy at a given range.
- Support for telescopic sights with more than one crosshair.
- Support for a Rear Sight and a Front Sight.

Lightscribe System Software and SDK provides libraries and a software development kit for Lightscribe Direct Disc Labeling of special writable DVD media.
Keep burning beautiful LightScribe discs by regularly updating your LightScribe System Software.
The LightScribe System Software is required for proper operation of your LightScribe system. Updates are released regularly to support new hardware or recently introduced LightScribe CDs and DVDs, and will ensure optimal and reliable operation of your LightScribe Labeling system.
Your LightScribe product manufacturer may have the best knowledge of your specific configuration and needs, and they are recommended as your first source of updates whenever possible.
This limited support universal version of the LightScribe System Software offered here has not been specifically tested by your hardware provider, and is provided as an alternative should you have problems with obtaining an update.
Enhancements:
- New drive and media support was added.
- Minor fixes were made.

OpenScientist is an integration of open source products working together to do scientific visualization and data analysis, in particular for high energy physics (HEP).
The project is definitely NOT one million lines of intricated and unnecessary complicated home made code reinventing everything.
Motivations
Experiments in high energy and nuclear physics need to be at the edge of computing technologies but at the same time have to face a very long life time (LHC experiments are going to be a matter of decades). This involves that the software must be organized in a way that permits to include or discard some technologies in an easy way without having to recode everything at each change of a piece.
For data analysis, the HEP community had used the CERN/PAW tool for years. Whilst this program had been used and is probably still used by hundred of physicists in the world, it is not any more maintained by the lab that created and promoted it : CERN. This lab had not been able to establish long term collaborative software engineering plans in order to have a technical follow up of this program and analysis tools in general. (What is astounding, is that the same people that were behind CERN/PAW come now with another tool (ROOT) which has exactly the same engineering defects).
OpenScientist is first of all an architecture trying to handle the problem differently to avoid upseting huge software phase transitions in the future. The key points of the system are the modularity and the openness. See the Languages, Coarse graining architecture, and The file formats intrinsic pain section for more about the technical choices and design.
Enhancements:
- An HDF5 driver was introduced in BatchLab.
- The build system was replaced with obuild.
- Support for CoinPython was added.
- Initial support was added for both Qt4 and SDL.
- Examples were added.
- Assorted code cleanups and speedups were done.