Sure, but how does it fill that gap?

Like, say I'm in a startup working on a novel microcontroller, or a novel ASIC, or a chip for a space rocket. Right now I'm prototyping on an FPGA, but performance / power / weight isn't good enough. Where does your product come in?

Like, if I'm not getting enough performance-per-power from an FPGA, how am I going to get enough from your eFabric chiplets? The underlying computation still happens on FPGAs and RISC-Vs, right?

Or is that you can embed your own custom circuits between pre-made chiplets? In that case, how do you save on capital costs (eg making the mask)? Through a fab shuttle?