Bonum Certa Men Certa

Why free software shouldn't depend on Mono or C# -- by Richard M. Stallman

Debian's decision to include Mono in the default installation, for the sake of Tomboy which is an application written in C#, leads the community in a risky direction. It is dangerous to depend on C#, so we need to discourage its use.



“We should systematically arrange to depend on the free C# implementations as little as possible.”The problem is not unique to Mono; any free implementation of C# would raise the same issue. The danger is that Microsoft is probably planning to force all free C# implementations underground some day using software patents. (See http://swpat.org and http://progfree.org.) This is a serious danger, and only fools would ignore it until the day it actually happens. We need to take precautions now to protect ourselves from this future danger.

This is not to say that implementing C# is a bad thing. Free C# implementations permit users to run their C# programs on free platforms, which is good. (The GNU Project has an implementation of C# also, called Portable.NET.) Ideally we want to provide free implementations for all languages that programmers have used.

The problem is not in the C# implementations, but rather in Tomboy and other applications written in C#. If we lose the use of C#, we will lose them too. That doesn't make them unethical, but it means that writing them and using them is taking a gratuitous risk.

We should systematically arrange to depend on the free C# implementations as little as possible. In other words, we should discourage people from writing programs in C#. Therefore, we should not include C# implementations in the default installation of GNU/Linux distributions, and we should distribute and recommend non-C# applications rather than comparable C# applications whenever possible.

Comments

Recent Techrights' Posts

Writing and Coding Isn't Always Enough
Last year we had to assume a role we didn't have before: litigants
Autumn Has Come
Autumn should be exciting in all sorts of ways; it'll also mark our anniversary
 
Gemini Links 01/09/2025: News Corp. WSJ and A Month With NixOS
Links for the day
Slopfarms Already Peaked, They Will Die When Slop Companies Run Out of Money to Borrow
slopfarms will lack an actual "engine"
“Sideloading” Never Killed Anybody
There are many online discussions this week about the misnomer "sideloading"
Slopwatch: Google News as FUD Vector Against Linux and Plagiarism Enhancer, Serial Slopper (SS) Uses LLMs to Googlebomb "Linux"
Slop destroys the Web not just by screwing with search engines and helping plagiarists. It's also responsible for de facto DDoS attacks...
Links 01/09/2025: "Attacks on Science" and China's "Soft Power" Grows
Links for the day
Links 01/09/2025: Fresh Backlash Against Slop and "Norway’s Electricity Crisis is About to Hit Britain"
Links for the day
Links 01/09/2025: Catching Up (Mostly via Deutsche Welle), "Windows TCO" Effect in UK
Links for the day
Gemini Links 01/09/2025: Linguistic Barriers and "Web 1.0 Hosting"
Links for the day
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Sunday, August 31, 2025
IRC logs for Sunday, August 31, 2025
The UEFI 9/11 - Part IV - External Interference
They all seem to be playing a role in crushing Software Freedom and self-determination for users
Links 31/08/2025: Baggage Claim Scams, an Insurrectionist’s War on Culture, and a Sudden Robotics Hype
Links for the day
Gemini Links 31/08/2025: Reviewing Netsurf and Slightly Less Historic Ada Design
Links for the day
IBM Has Taken Control of GNOME
Don't expect a successor to be found any time soon
Links 31/08/2025: Google Gmail Data Breach and LF Puff Pieces for Pay
Links for the day
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Saturday, August 30, 2025
IRC logs for Saturday, August 30, 2025
This is What Google News Has Become
Moments ago
The Slopfarm WebProNews Has Turned Google News Into a Laughing Stock Full of Plagiarism by Slop
If Google News dies of neglect, that's one thing. It's starting to seem like active neglect by Google is a form of participation.
Do What is Moral, as What's Legal Isn't Always Moral
Do what's objectively moral, no matter the costs and the risks
Slopwatch: Google News Assisting Plagiarism and Anti-Linux FUD, Serial Slopper Rips Off Linux-Centric Journalists
This makes the Web a much worse place and lessens the incentive to do journalism
Links 30/08/2025: NVIDIA Fakes Results to Hide a Bubble Already in Implosion Phase, Data Breaches Galore, Important Win for Workers' Union in Canada
Links for the day
Representing and Speaking for Animals
If I ever choose to take this matter to tribunal with animals-centric NGOs on my side, it'll get some press coverage for sure
The UEFI 9/11 - Part II - Campaign of Censorship and Defamation Against Critics
In dictatorships, humour serves an important role. It's tragic.
In Kazakhstan, Yandex Estimated to be 20 Times Bigger Than Microsoft
Bing is measured as down this month
Shutterstock Not Enough? The Register MS Uses Slop Images in Articles (Seemingly More and More Over Time)
Cost-saving trajectory amid office shutdown?
Gemini Links 30/08/2025: Games, PostmarketOS, and Slop
Links for the day
Links 30/08/2025: Imgur Uproar and Many Ukraine Updates (Mediazona Reports Over 200,000 Russians Died for Putin)
Links for the day
How Not to Build Software
code forges that need a Web browser perhaps fill some 'niche' demand
GAFAM and "MATA"
The use of dark humour there hopefully helps illuminate what a lot of "modern" technology became like and how it interacts with human civilisation (to what ends and whose gain)
Birds Are Not "Pests and Vermin", Privacy is Not a Crime, and GNU/Linux is Not 'Hacking Platform'
I could not help but think of Free software analogies
The Sites Should Be Very Fast Again
That issue is now resolved
Flying in 2025
worse than ever before
Activists, Including Technical Activists, Need Not Pursue Affirmation
Techrights doesn't play or participate in a "popularity contest"
The UEFI 9/11 - Part III - Chaos is Scheduled to Happen Second Thursday of September (No Matter What the Microsofters Tell You)
The clock is ticking
Downplaying the Impact of "UEFI 9/11" is a Losing Strategy
we won't publish much whilst on holiday
Government Sites Should Run Free Software
Not proprietary bloatware with buzzwords
LLM Slopfarms Take No Breaks
When people run sites by bots they don't need to worry about "breaks"
GNOME Having a Meltdown Again
Thanks and farewell to Steven Deobald
Gemini Links 30/08/2025: Low Tech and Hunchbin 1.0.6
Links for the day
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Friday, August 29, 2025
IRC logs for Friday, August 29, 2025