Since commit 183d05a0 in 2012, this is the default. fixes #18000
183d05a0
find pkgs -name "*.nix" -exec sed -r \ "s|https?://downloads.sourceforge.net/|mirror://sourceforge/|g" -i {} \;
note that odalaunch is not included in this package, users are expected to use doomseeker. If you would like an option for odalaunch, please bother me(MP2E)