To clone the Wine development tree using git:

  git clone git://source.winehq.org/git/wine.git

For more information, check the GitWine page.
List all projects
Project Description Owner Last Change
appdb.git Wine application database Alexandre Julliard 4 days ago
bugzilla.git Bugzilla for the WineHQ site Alexandre Julliard 6 days ago
docs.git Wine documentation Alexandre Julliard 2 years ago
fontforge.git Official FontForge version... Alexandre Julliard 4 years ago
tools.git Tools for the WineHQ site Alexandre Julliard 13 hours ago
vkd3d.git D3D12 to Vulkan translation... Alexandre Julliard 8 days ago
website.git WineHQ web site sources Alexandre Julliard 36 hours ago
wine.git Wine development tree Alexandre Julliard 10 hours ago