The path to the source code was: http://tikiwiki.cvs.sourceforge.net/tikiwiki/tiki/
The path to the source code was https://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki/ (now inactive)
The Tiki Remote Instance Manager (TRIM) project was started, and it offered a tool to convert a CVS instance to SVN.
The Allura project was here: https://sourceforge.net/projects/allura/
And later became Apache Allura(from previous "Alexandria" platform). Ref.: Update from SVN pre 2013
The path to the source code became: https://sourceforge.net/p/tikiwiki/code/HEAD/tree/
In May 2018, during the Tiki19 development cycle, a Git and SVN combined workflow using (SubGit) was implemented. The canonical source code is still SVN on SourceForge, but contributors progressively start collaborating via Git, on GitLab
The path to the source code became: https://gitlab.com/tikiwiki/tiki
After a while (not sure when), it was agreed no one should commit on SVN anymore, because 2-way sync would sometimes break.
Git becomes the default in Tiki Manager: https://gitlab.com/tikiwiki/tiki-manager/-/merge_requests/91