A method includes transmitting a first copy of a committed version of source code to a first client device and a second copy of the committed version of the source code to a second client device and receiving, from the first client device, a selection of a presentation type that specifies access privileges to changes made by a first user associated with the first client device to the first copy of the committed version. The method further includes receiving, from the first client device, first changes to a part of the source code of the first copy of the committed version and transmitting the first changes and instructions for real-time presentation of the first changes in accordance with the selected presentation type. The method further includes storing the first changes in a first record of changes that is associated with a first user of the first client device.