The PROS team has access to the VEX V5 SDK under NDA, we do not make the runtime library or documentation publicly available. So, although source for PROS is available, you cannot build the PROS library yourself.
The PROS team has access to the VEX V5 SDK under NDA, we do not make the runtime library or documentation publicly available. So, although source for PROS is available, you cannot build the PROS library yourself.