1. A method of providing configurable hardware, the method comprising: receiving a first request to generate configuration data for a field-programmable gate array (FPGA), the first request comprising a reference to a hardware design specifying application logic for implementation on the FPGA, the FPGA comprising host logic and the application logic when the FPGA is configured; generating a validated bitstream based on the application logic and the host logic, the validated bitstream specifying the configuration data for the FPGA; receiving a second request to download the validated bitstream to a host server computer of the computing environment, the host server computer comprising a particular FPGA; and transmitting the validated bitstream to the host server computer in response to the second request so that the particular FPGA is configured with the host logic and the application logic.