I have been really tempted to sit down and write a ot version of edotor.net so more than one person could edit a graph at the same time in a meeting/ discussion

I have been really tempted to sit down and write a ot version of edotor.net so more than one person could edit a graph at the same time in a meeting/ discussion. We have been trialing using it to draw graphviz graphs for discussion and it has been working very well both as an in meeting tool and as a reference later on. Would be interested to go the Wacom route but my my handwriting is very bad and only getting worse