🚀 go-pugleaf

Is there anyone at FSF who is interested in writing a free replacement
for Mathematica?  Wolfram has one of the most predatory policies that
I know of; for example, consider our situation:
We run Mathematica on a SGI platform.  We recently upgraded our
operating system.  Mathematica stopped working.  According to Wolfram,
our only option is to upgrade to the new version of Mathematica.  We
can upgrade to a crippled version that will allow only 2 simultaneous 
processes running on the same machine for $500.00.  Or for about 
$1500.00 we can get a fully functional upgrade.  Wolfram also offers
"site" licenses for $10,000.00. These are not licenses to copy the
software and use it on any machine on-site: they just give you a
discount for any further copies of the program that you buy for the
next three years. 

Mathematica is a pretty useful program, but Wolfram's policies seem
extreme.  I am interested in any comments on the above.

Martin