The instructions use my info, so just swap it with your login information.
Create an account on Launchpad.
If running Ubuntu/Debian:
sudo apt-get install bzr
bzr whoami "Keith Curtis <firstname.lastname@example.org>" bzr launchpad-login keithcu
With distributed version control systems, you create can create a branch for every feature, so that they can move forward at their own pace, like this:
Here is a basic workflow I used to get started
Get trunk and create work branch
bzr branch lp:openracing trunk (put the default openracing branch called trunk into a directory trunk) bzr branch trunk work (make work branch) cd work bzr push lp:~keithcu/openracing/work (This creates a remote branch on the server called work for you to work with)
Party like crazy
(bzr add will add your .hg directory if you aren't careful! bzr revert throws them away)
bzr commit -m "Party like it's 1929" bzr push lp:~keithcu/openracing/work (to push your changes to the remote server -- not strictly necessary, but it lets others pull from them, and backs your changes up in case your computer dies.)
When you are sure they are ready, apply changes to trunk.
cd ../trunk bzr merge ../work bzr commit -m "Adding stabilized feature XXX" bzr push lp:openracing
Get your work branch up to date
cd work bzr merge lp:openracing
Here are some notes but they aren't that helpful because they don't assume launchpad http://doc.bazaar-vcs.org/latest/en/mini-tutorial/index.html