$ wget http://minimals.contextgarden.net/setup/first-setup.sh
--2016-12-14 15:45:23--  http://minimals.contextgarden.net/setup/first-setup.sh
Resolving minimals.contextgarden.net (minimals.contextgarden.net)... 193.2.4.200, 2001:1470:ff80:88::80:c
Connecting to minimals.contextgarden.net (minimals.contextgarden.net)|193.2.4.200|:80... failed: Connection refused.

I took that from the instructions page at http://wiki.contextgarden.net/ConTeXt_Standalone#Single_user_installation — perhaps a different URL is the correct one?

Thanks for your help!

David