The Ultimate Guide to Open Source Software

For the fifth year in a row, Datamation is closing out the year with a big, big list of all the software we've featured on our monthly open source software guides. This year's list is the longest ever with 1,180 projects in 143 different categories from Accessibility to Wine and Beer.

We refreshed the list with all the new applications we've highlighted this year, and we dropped those that hadn't been updated in a while. Please note that the list is organized by category and alphabetically within each category — the numbers don't indicate rank or quality.

We hope you enjoy this year's end-of-the-year guide, and as always, if you know of other open source projects that you think we should feature next year, let us know in the Comments section below.

Accessibility

Launched earlier this year, this site aims to provide information on making other websites accessible to people with a variety of impairments, particularly those who are blind. You can read the content at the link above; if you'd like to contribute, visit the project's GitHub page. Operating System: OS Independent

Accounting

This Web-based application tracks quotes, work orders, invoices, contacts, customers and vendors, as well as offering double-entry accounting capabilities. It also integrates with Google Calendar and other apps. Operating System: OS Independent

FrontAccounting includes both accounting and basic ERP planning that are suitable for small businesses. It supports multiple languages and currencies, as well as multiple businesses. Operating System: OS Independent

This flexible accounting package tracks your small business finances with double-entry accounting, and it can also track your personal finances, including your investment accounts. It also now comes with an Android app. Operating System: Windows, Linux, OS X, Android

Downloaded more than 57,000 times, this small business accounting package also incorporates some basic ERP and CRM functionality. Several third-party vendors offer commercial support and consulting. Operating System: Windows, Linux, OS X

This accounting solution offers invoices, customizable reports, stock control, point-of-sale capabilities and much more. Because it's developed by a team in the Netherlands, much of the documentation and support is in Dutch, but English is also available. Operating System: Windows, Linux

Another accounting package built for SMBs, TurboCASH features stock control, general ledger, accounts receivable and payable, reporting and analysis capabilities. The site offers a great deal of guidance for those new to accounting, including a book available for purchase. Operating System: Windows

Short for "Xiwa Is Web Accounting," this mature, Linux-only accounting program has been around since 1999. Key features include multi-user support, multi-company support, payroll, stock/investment tracking, reporting and more. Operating System: Linux

App Collection

This project combines many of the most popular open source apps for Windows into one package. It includes LibreOffice, Firefox, Celestia, The Gimp, Inkscape, Dia, and many other very good open source progams. Operating System: Windows

Anti-Spam

The self-proclaimed "absolute best SPAM fighting weapon that the world has ever known," ASSP sits on your SMTP servers to stop spam and scan for viruses. Features include browser-based setup, support for most SMTP servers, automatic whitelists, early sender verification, Bayesian filters, and more. Operating System: OS Independent

Downloaded more than 1.3 million times by users in 225 countries, MailScanner is a free e-mail security package for mail servers. It incorporates SpamAssassin, ClamAV and a number of other tools to block spam and mailware. Operating System: OS Independent

"The powerful #1 open-source spam filter," SpamAssassin uses header and text analysis, Bayesian filtering, DNS blocklists, collaborative filtering databases and other techniques to block spam. The project is managed by the Apache Foundation, and it's been incorporated into a number of other open source and commercial products. Operating System: primarily Linux and OS X, although Windows versions are available

As you might guess from the name, this project offers a group of Bayesian filters for blocking spam. The site includes versions for Outlook, Outlook Express, Windows Live Mail, IncrediMail, Thunderbird, Gmail, Yahoo Mail and others. Operating System: OS Independent

Anti-Spyware

Nixory removes and block malicious tracking cookies, aka spyware, from your system. It supports Mozilla Firefox, Internet Explorer and Google Chrome, and it won't slow your system while you surf. Operating System: OS Independent.

Downloaded more than 1.2 million times, Trend Micro's Hijack This provides you a report of your registry and file settings so that you can more easily spot and remove spyware and malware. Note that in order to use this tool effectively, you'll need to be a fairly knowledgeable user. Operating System: Windows

Anti-Virus/Anti-Malware

This tremendously popular anti-virus engine has been incorporated into numerous security products and calls itself "the de facto standard for mail gateway scanning." The open source version runs on UNIX or Linux mail servers, but the website also offers a version called Immunetfor individual Windows PCs. Operating System: Linux

ClamTK makes ClamAV a little bit easier to use by providing a graphical interface for the anti-virus engine. Like the original ClamAV, this one runs on Linux and scans "on demand" only, not in real-time. Operating System: Linux

Based on ClamAV, ClamWin protects more than 600,000 PCs from viruses and malware. Note that unlike most commercial anti-virus packages, ClamWin does not offer an on-access real-time scanner; in order to scan incoming files, you'll need to save them and then run a scan manually before opening or running the files. Operating System: Windows

P3Scan provides anti-virus and anti-spam protection for mail services only (not Web surfing). With it you can set up a transparent proxy server. Operating System: Linux

This no-frills tool scans for rootkits and other malware on Linux system. While it does not provide live or scheduled scanning, the Web site explains how to set up your system to scan daily. Operating System: Linux, Unix

Still getting the occasional network virus even after you install anti-virus software? Viralator supplements the existing anti-virus software on your proxy server to block malware that might otherwise slip in when users access free webmail accounts. Operating System: Linux, Unix

Astronomy

If you've ever wished you were an astronaut, give Celestia a try. It allows you to see the skies as they would appear at any point in time from any point in the known universe. Operating System: Windows, Linux, OS X

Similar to Stellarium, KStars lets users view "up to 100 million stars, 13,000 deep-sky objects, all 8 planets, the sun and moon, and thousands of comets and asteroids." It also includes a number of tools helpful for amateur astronomers, such as an observation list, an FOV editor, a sky calendar, supernova alerts and a glossary of technical terms. (Note that in order to use KStars on Windows, you'll have to download KDE for Windows.) Operating System: Windows, Linux

Science teachers often need to reproduce star charts for use during class lectures, as well as for handouts and tests. This app works with LaTeX, to simplify the process of creating star charts for use in presentation slides or for printing. Operating System: Windows, Linux

StarChart describes itself simply as a program that "draws maps of things in the sky." Like PP3, it does a good job of producing high-quality star charts for study purposes. Operating System: Linux

Many planetariums use Stellarium to power their presentations, but you can also use it at home. It will show you the position of heavenly bodies as seen from any point on earth at any time. Operating System: Windows, Linux, OS X.

Audio Tools

This full-featured music player integrates with a wide variety of Web audio services. The latest release adds an updated interface, a new visualization tool, smooth fade-out when pausing music, enhanced MusicBrainz tagging and improved power management. Operating System: Windows, Linux, OS X, iOS

Aqualung's claim to fame is gapless playback, in other words, no awkward pauses between adjacent tracks. It supports most audio formats and plays CDs. Operating System: Windows, Linux, OS X

Ardour is an advanced, professional-grade digital recording, editing and mixing tool. It supports most hardware and offers features like flexible recording, unlimited multi-channel tracks, unlimited undo/redo, easy import and export, tools for creating video soundtracks and more. Operating System: Linux, OS X

This Java-based music player and manager displays complete information—including lyrics—for the song currently playing. It's a good option for users with particularly large music collections. Operating System: OS Independent

Audacious is very light on system resources, making it possible to play music and do intensive computing tasks without sacrificing performance. The interface is basic and very easy to use. Operating System: Windows, Linux

A perennial favorite among Linux users, Audacity makes it easy to record and edit multi-track audio. It's ideal for hobbyists who want an intuitive product that also includes some of the high-tech features you would find in an application designed for professionals. Operating System: Windows, Linux, OS X

This audio decoder and processor filter allows media players to play AC3 and DTS audio tracks from movies. It also allows you to mix audio tracks and adjust sound quality. Operating System: Windows

Bluemindo "aims to provide a very simple audio player." It's customizable, Web-oriented and available in multiple languages. Operating System: Linux

Downloaded more than 45 million times, CDex is a very popular tool for extracting the digital data from audio CDs and converting it to an MP3 or other compressed formats. It supports many different encoders and multiple languages. Operating System: Windows

For those who are comfortable working from the command line, CDRtools is a collection of apps for converting and recording CDs, DVDs and Blu-Ray. Under development since 1996, this is a mature tool that has been around a long time. Operating System: Linux

This utility can burn data discs, audio CDs, XCDs, (S)VCDs and video DVDs. It provides the same functionality as CDRtools, but runs on Windows. Operating System: Windows

A fork of Amarok, Clementine boasts a fast and easy-to-use interface. It plays audio CDs, locally stored music, streaming Internet radio and podcasts. Operating System: Windows, Linux, OS X, Android

Designed to be super fast, CoolPlayer is extremely light on system resources. It doesn't have all the advanced music management features in many other applications, but it does play most audio formats. Operating System: Windows

Named for a magic number used in debugging, DeaDBeeF aims to be the "ultimate music player for GNU/Linux." It also now comes in an Android version. Operating System: Linux, Unix, Android

Similar to Bluemindo, Decibel is a simple audio player without other features like content tags and CD burning. Its modular structure makes it easy to disable any unwanted features to free up resources. Operating System: Linux

EasyTAG allows users to view and edit the tag fields on MP3, MP2, MP4/AAC, FLAC, Ogg Vorbis, MusePack, Monkey's Audio, and WavPack files. It includes a tree-based browser and CDDB support for manual and automatic searches. Operating System: Windows, Linux

Its name is short for "free audio converter," and free:ac can transform CDs or digital audio files into MP3, MP4/M4A, WMA, Ogg Vorbis, FLAC, AAC, WAV and Bonk formats. It's optimized for multi-core systems, making it particularly fast, and it also runs from a thumb drive. Operating System: Windows

Java-based Frinika calls itself a "complete music workstation software containing sequencer, midi support, soft synthesizers, audio recorder, piano roll/tracker/notation editing and more." It's another good option for home users. Operating System: OS Independent

Turn your Linux/Unix system into a full-featured drum machine. The latest version includes a sample editor, time stretch and pitch functions, playlists, a director window with a visual metronome and more. Operating System: Linux

Popular with reviewers, Jajuk makes it easy to sort, search and view large audio libraries. It combines an intuitive interface with advanced features, making it suitable for both light users and power users. Operating System: OS Independent

Designed for DJs and "serious music lovers," Jukes began life as a Windows application called "Put Up Your Jukes." It's since been re-written and released for multiple platforms, but it hasn't been updated in a while. Operating System: Windows, Linux, OS X

Juice makes it easy to capture and listen to podcasts, any time, anywhere. It includes a directory of thousands of online podcasts, so it’s also easy to find the one you want. Operating System: Windows, Linux, OS X

This KDE app plays both Midi and karaoke files, making it easy for you to serenade your sweetheart. It includes a piano player interface and also accepts input from external keyboards. Operating System: Windows

Although LAME stands for "Lame Ain’t No MP3 Encoder," the first line on its Web site states, "LAME is an MPEG Audio Layer III (MP3) encoder." It was intended as an educational tool for those interested in improving the speed and quality of MP3 files. Operating System: Windows, Linux, OS X

Designed as a free alternative to FL Studio, LMMS allows users to create melodies and beats, synthesize and mix sounds, and arrange samples. It works with MIDI keyboards and comes with a lot of built-in plugins, presets and samples. Operating System: Windows, Linux

This Java-based app also supports audio files only. Use it to search, browse and play your MP3 collection from any Internet-connected device. Operating System: Windows, Linux, OS X

An older project that hasn't been updated in a while, Mixere boasts a simple, spreadsheet-style interface. It offers similar capabilities as Mixx, but it isn't quite as advanced. Operating System: Windows

Designed for DJs performing live, Mixx boasts a powerful mixing engine that supports most popular audio file formats. Other key features include iTunes integration, BPM detection and sync, and support for more than 30 different MIDI controllers. Operating System: Windows, Linux, OS X

Simply select a directory, and the MOC (Music On Console) audio player will play all files in that directory. Supported file formats include MP3, Ogg Vorbis, FLAC, Musepack, Speex, WAVE, AIFF, and AU. Operating System: Linux/Unix, OS X

This music player caters to those who prefer to operate from the command line and does not have a GUI. It's a client-server application that plays most common audio formats. Operating System: Linux/Unix

Tired of constantly adjusting the volume when playing MP3s? MP3Gain uses statistical analysis to gauge how loud songs sound in the human ear, and then modifies the volume appropriately without degrading the quality of playback. Operating System: OS Independent

Mp3splt is an audio utility that does just one thing—it lets you cut mp3 and ogg files into smaller files and rename them. It’s especially useful if you need to split an entire album into individual tracks. Operating System: Windows, Linux, OS X

There’s no need to spend hundreds of dollars on software that creates sheet music. MuseScore makes it easy to “create, play and print beautiful sheet music,” and it’s absolutely free. Operating System: Windows, Linux, OS X

Java-based orDrumbox includes features like auto-composition, poly-rhythms, an unusual arpeggiator, automatic sounds/track matching, custom softsynths, lowfi rendering and more. There’s a “lite” online version so you can try it out before you download. Operating System: Windows, Linux, OS X

This simple, skinnable audio player supports dozens of audio formats. Its name stands for "Qt-based multimedia player." Operating System: Windows, Linux

If your favorite online radio station only offers streaming content, you can turn it into a podcast you can listen to any time with Radio Downloader. It comes with built-in support for BBC content and a helpful "favourites" tab. Operating System: Windows

Inspired by iTunes, Rhythmbox is a music management system designed for the Gnome desktop. Key features include easy search and sort, visualizations, Internet radio, CD playing and burning, playlists and more. Operating System: Linux

The "Swiss Army knife of sound processing programs," SoX can convert audio files to and from most file formats and add special effects. It’s a command line program, so you’ll need to be comfortable working without a GUI to use it. Operating System: Windows, Linux, OS X

Based on FFMpeg, MEncoder and MPlayer, TEncoder is a multi-threaded multimedia converter that supports most file formats. It can run up to eight processes simultaneously and can run two passes to improve quality on converted files. Operating System: Windows

TuxGuitar lets you create and playback tab scores. Features include multi-track display, auto-scroll, effects and import/export to popular audio file formats. Operating System: Windows, Linux, OS X

Lightweight WaveShop boasts “bit-perfect” performance, meaning that samples aren’t changed unless necessary. Noteworthy features include unlimited undo, normalizing, fading, sample rate conversion, audio generation, plug-ins and peak, RMS and spectral analysis. Operating System: Windows

This app is a vinyl emulator that allows DJs to "scratch" digital tracks as if they were on vinyl records. Supported features include needle drops, pitch changes, scratching, spinbacks and rewinds. Operating System: Linux

Zinf offers a simple audio player with powerful capabilities. It supports a wide variety of file formats, and a number of different interface themes are available. Operating System: Windows, Linux

Backup

Short for "Advanced Maryland Automatic Network Disk Archiver," AMANDA allows organizations to backup their networks to tape, disk or optical media. A company called Zmanda now sponsors the project and offers cloud-based backup based on AMANDA. Operating System: Windows, Linux, OS X

While AMANDA offers network-based backup for businesses, Areca is a good option for home users backing up a single system. Key features include encryption, compression, delta backup support, filters, as-of-date recovery, email reports and more. Operating System: Windows, Linux

This enterprise-grade network backup solution offers fast performance with minimal I/Os. It uses pooling and compression to minimize the size of backup files, and it offers advanced management features for IT administrators. Operating System: Windows, Linux

Designed for enterprises, this network backup solution offers highly advanced capabilities and claims to be the most popular open source backup solution available. A group called Bacula Systems offers paid support for users who want it. Operating System: Windows, Linux, OS X

Clonezilla's developers originally envisioned this app as a free replacement for Norton Ghost. It offers backup, recovery and cloning capabilities for networks or standalone systems with multicasting available in the SE edition. Operating System: Linux

At just 220KB, this backup tool for home users is exceptionally lightweight and fast. It supports multiple languages and includes an easy-to-use scheduling tool. Operating System: Windows

FOG is a networked-based cloning tool that can backup Linux and Windows systems to a Linux server. It's powerful, easy to use, and scalable with the ability to back up 2 to 20,000 systems. Operating System: Linux, Windows

Partimage can back up standalone systems, networks or disk partitions. According to the website, it's advantages include its fast performance, destination flexibility, fast and simple restores, and no recovery of deleted files. Operating System: Linux

Aimed at home users, Redo Backup and Recovery boasts very simply operation and bare-metal restores that take as little as 10 minutes. It's a very popular option that's been downloaded more than 750,000 times. Operating System: Windows, Linux

This client-server backup software promises backups that don't interfere with your current work and fast restores. It includes a Web interface to simplify the process of setting up your backup server. Operating System: Windows, Linux

Big Data Tools

Apache Avro is a data serialization system based on JSON-defined schemas. APIs are available for Java, C, C++ and C#. Operating System: OS Independent

This distributed database can run on a single system or scale to hundreds or thousands of machines. Features include dynamic sharding, high performance, high concurrency, high availability and more. Commercial support is available. Operating System: OS Independent

Built on top of HDFS and MapReduce, Chukwa collects data from large distributed systems. It also includes tools for displaying and analyzing the data it collects. Operating System: Linux, OS X

Another Apache project, Flume collects, aggregates and transfers log data from applications to HDFS. It's Java-based, robust and fault-tolerant. Operating System: Windows, Linux, OS X

Apache's Hadoop project offers distributed processing of extremely large data sets and is popular with organizations that operate cloud environments. Well-known users include Yahoo, Amazon, eBay, AOL, Facebook, Google, Hulu, Spotify and many others. Operating System: Windows, Linux, OS X.

Developed by LexisNexis Risk Solutions, HPCC is short for "high performance computing cluster." It claims to offer superior performance to Hadoop. Both free community versions and paid enterprise versions are available. Operating System: Linux.

The self-proclaimed "de facto standard for search libraries," Lucene offers very fast indexing and searching for very large datasets. In fact, it can index over 95GB/hour when using modern hardware. Operating System: OS Independent

Originally developed by Google, the MapReduce website describes itself as "a programming model and software framework for writing applications that rapidly process vast amounts of data in parallel on large clusters of compute nodes." It's used by Hadoop, as well as many other data processing applications. Operating System: OS Independent.

This Apache project is designed to coordinate the scheduling of Hadoop jobs. It can trigger jobs at a scheduled time or based on data availability. Operating System: Linux, OS X

Solr is an enterprise search platform based on the Lucene tools. It powers the search capabilities for many large sites, including Netflix, AOL, CNET and Zappos. Operating System: OS Independent

Sqoop transfers data between Hadoop and RDBMSes and data warehouses. As of March of this year, it is now a top-level Apache project. Operating System: OS Independent

Now owned by Twitter, Storm offers distributed real-time computation capabilities and is often described as the "Hadoop of realtime." It's highly scalable, robust, fault-tolerant and works with nearly all programming languages. Operating System: Linux

Terracotta's "Big Memory" technology allows enterprise applications to store and manage big data in server memory, dramatically speeding performance. The company offers both open source and commercial versions of its Terracotta platform, BigMemory, Ehcache and Quartz software. Operating System: OS Independent.

Formerly a Hadoop sub-project, Zookeeper is "a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services." APIs are available for Java and C, with Python, Perl, and REST interfaces planned. Operating System: Linux, Windows (development only), OS X (development only)

Billing

Web-based Argentum tracks clients and billable hours, as well as generating invoices for you each month. Installation assistance, commercial support and a hosted version are also available. Operating System: OS Independent

Downloaded more than 120,000 times, jBilling claims to be "world's leading open source enterprise billing solution." It's particularly good for subscription-based billing, and notable customers include Deutsche Telecom, Constant Contact and Rackspace. In addition to the free version, paid support and services are available. Operating System: OS Independent

Popular with small companies and non-profits, this browser-based invoicing system aims to be easy to use. Host it yourself for free or contact one of the third-party hosting providers listed on the site. Operating System: OS Independent

This invoicing app tries to be simple, straightforward, comfortable, useful, pretty, flexible, productivity-oriented, secure, supported and usable anywhere. Plenty of screenshots and a demo are posted on the site so that you can see how it works before you download it. Operating System: OS Independent

Blogging

This blog platform/content management system can support multiple blogs, multiple domains and multiple authors. It's extensible with skins and plug-ins, and the site offers a demo and links to sample sites. Operating System: OS Independent

With built-in multi-user authentication and multi-blog support, LifeType offers a blogging platform suitable for large enterprises. Key features include anti-spam filter, mobility support, integrated media management, easy installation and more. Operating System: OS Independent

It bills itself as a Content Management System, but in reality Nucleus is primarily a tool for setting up a blog and hosting it on your own server. Features include a built-in commenting tool, URLs optimized for readers, and multi-lingual support. Operating System: OS Independent

Used by more than 60 million bloggers, WordPress is one of the best known blogging applications available. You can download the software for free and host it on your own Web server or you can use the hosted service available through WordPress.com Operating System: OS Independent

I only sadly figured out the deal a short time ago.

I use open source because M$ is so bad and so expensive.

That being said...

Back in the ‘80s when the PC first gained wide acceptance, many entrepreneurs made small fortunes selling software. This was an essential part of good economic times of the ‘80s.

Unfortunately, new world order wants monopolies that they can control. The idea of people owning their own businesses and make a lot of money is the opposite of what new world order wants. Every person who manages to acquire a decent amount of wealth is a) able to self-determine, b) will start to understand that debt needs to be avoided in almost every case, c) starts to see that as a business owner they have a greater impact on society and can exercise this power, d) has time on their hands to think, plan, undertake new ventures, etc., etc., etc. Business owners don’t make good NWO slaves.

Consequently, NWO has laws and regulations regarding the capital markets, taxes, business, etc., to allow them to lure all wealthy individuals into the orbit of NWO.

But they would much rather have a society that simply precluded the sheeple from owning businesses. This is why the investors in American International Corporation jumped at the chance to promote world communism, and why NWO elites cooked up that idea way back in the early 1800’s to begin with. If a nation will accept it, it is the most efficient way to stomp out all business competition against NWO’s own monopolies which can then sell to and lend to whatever statist government NWO props up over the sheeple. The products the sheeple can buy and the jobs they can have are thus limited to the dictates of NWO, and the sheeple can be taxed into oblivion and kept as economic slaves. In the event there are planning difficulties, NWO has the fallback of simply culling the sheeple population via the statist government.

Bill Gates was long ago brought under new world order control when he took M$ public, and he has since resorted to using the NWO foundation tax dodge, essentially avoiding massive taxes required to bequeath his estate in exchange for putting his assets into a foundation that does the bidding of NWO. Laws and regulations are set up to “capture” the power of wealthy entrepreneurs in this way, after which they are helped in running their businesses as monopolies that both foster and profit from NWO agendas.

Since the major IT companies do not need to rely on getting paid full price for software, but are desperate to maintain a monopoly with only token competitors, the idea of open source software was cooked up.

Nowadays, millions of programmers are told that a) they should open source the products they develop and b) give the products away for free and c) make money off services related to the products.

New world order realizes (but most programmers don’t, smart as they are) that the real money is in selling products, since if I write a software program once but sell copies of the program to thousands of customers, my revenue can scale to far more than I could earn by selling my programming services 8 hours a day paid by the hour. The “services” business model limits me to getting paid one time by one client for each hour I work; I can only earn what I can do with my own two hands. Thus, I miss out on the benefits of the whole concept of my being able to sell my work product on a massive scale as a product.

The large IT companies mainly have three sorts of customers, namely, government, business and consumer, and all of them are neatly locked in to paying the large IT companies for their existing services and products. They are able to actually sponsor open source development - even paying a few of their employees to work on “open source” or “free” software full time, yet still they can earn plenty of revenue from sales of proprietary products and services.

The small software startup, on the other hand, could well benefit from the high profit margins of software product sales to finance its growth - as opposed to giving away its precious product for free then approaching businesses as sales prospects for its services. In growing a service business, one is limited to the growth of as many employees as one can profitably hire and bill out. Thus the growth is linear, i.e., directly tied to employee count and winning of individual service contract sales.

The big benefit for entrenched companies in open source / free software is that if a new software startup does manage to come up with a fantastic product and sales climb into the tens of millions per year - just for the product - then the open source boys (largely being paid by the big companies, mind you) can sit down a create an open source look alike competitor to the new product. It doesn’t have to be exactly as good, just reasonable, and it will be widely adopted since the mantra of open source has spread so far and wide. Thus the new company and its product can be cut off at the knees before they ever get near being serious competition for the big companies.

Of course, for hardware the traditional rules apply, as copies of the product have to be physically manufactured. But for small companies this is capital intensive; even with outsourcing of manufacturing, pricing is based on order size. A well-financed business has great advantages over the “garage” startup. The monopolists are not looking forward to a new “Apple” coming out of the blue and disrupting things, thus manufacturing is a rough-and-tumble game.

Open source, therefore, benefits large, entrenched companies far more than it benefits startups in terms of revenue.

Of course, the tradeoff is that in terms of expense, free software is cheap, which reduces the costs startups incur - if they have personnel who have the necessary expertise to work with unix.

The obvious ideal for the startup is to make use of open source software internally as much as possible to reduce costs (not to mention escape the inefficiencies of the “junk” of M$), but nevertheless sell products instead of services to increase margins and get that better-than-linear growth on the revenue side of the P&L.

It’s all about getting beyond being a serf.

I think this might be more advanced than me.

compile.txt says:

How to compile Pioneer

Pioneer is known to build on the following platforms and build systems:

Linux: GNU Autotools with GCC or Clang
Windows: Microsoft Visual C++ 2008, 2010 & 2012
Windows: GNU Autotools with MXE (MinGW GCC) (cross-compile on Linux)
OS X: GNU Autotools or XCode 4

The Autotools build system is usually the most up-to-date, and is what is used
to produce the Linux and Windows builds. The others typically lag behind,
depending on the motivation of those using them to keep them up too date with
source file changes.

There is an additional repository called pioneer-thirdparty that contains
various files that may assist with building. If the instructions for your
platforms indicates you may need it, then read the section below for details.

If you’re having trouble compiling, please ask in #pioneer on
irc.freenode.net.

Linux - Autotools

1. Install the following libraries (with development headers) for your system.
If your system is not Debian/Ubuntu based, they may have different names.

Debian/Ubuntu

g++
automake
pkg-config
libsigc++-dev
libsigc++-2.0-dev
libsdl2-dev
libsdl2-image-dev
libfreetype6-dev
libvorbis-dev
libpng-dev
libassimp-dev >= 3.0
mesa-common-dev

If your platform doesn’t have assimp 3.0, you’ll need to build it from
source. Its available in pioneer-thirdparty, see below.

2. Run ./bootstrap to generate your ‘configure’ file

3. Run ./configure to configure the build. If you’re using the
pioneer-thirdparty repository, pass
—with-thirdparty=/path/to/pioneer-thirdparty to configure.

4. Run make to build everything

...

then it went on to Windows...

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