DevWork application is intended to be a UI for an underlying version control system. Not any specific vcs, but instead any VCS. However the only one supported was SVN.
The user interface of DevWork resembles todo. However, the todo could handle a bigger project properly. So it was decided to switch to another version control system. At the time, I was quite confident with SVN and proposed that. The only problem was user the interface. SVN command-line tool was not acceptable. Existing UI for SVN was not "friendly" enough. So the choice was made to create a new tool with the user interface similar to todo.
Public Repository: https://svn.code.sf.net/p/devwork/code/