BlastFunction is a serverless platform that brings FPGA acceleration capabilities for specific functions through heterogeneous computing. It enables resource sharing across multiple users to maximize FPGA utilization and minimize costs for cloud providers. BlastFunction manages functions and machines, redistributing workloads across nodes equipped with FPGAs. Initial results show BlastFunction improved FPGA utilization and increased performance per watt for benchmark applications compared to native CPU execution. Future work includes porting BlastFunction to AWS and automating cluster management.