Without the BIOS, a Dreamcast game cannot boot — even on real hardware. In emulation, the BIOS must be (legally, you cannot distribute it).
The "good story" today isn't just about software; it’s about bridging the gap between old and new. Physical VMUs on PC : New community projects like DreamPicoPort Dreamcast Bios Flycast
in Flycast provide the best performance for modern mobile devices or PCs? Without the BIOS, a Dreamcast game cannot boot
Here’s a complete guide to understanding, obtaining, and using the with the Flycast emulator (standalone or via RetroArch). Without the BIOS
Check out these video guides for a visual walkthrough of the Flycast installation and BIOS setup process: