There's a fair few commercial sellers for MiSTer related stuff. Yes some just build existing open hardware designs, but not everything is open hardware. E.g. t

There's a fair few commercial sellers for MiSTer related stuff. Yes some just build existing open hardware designs, but not everything is open hardware. E.g. the MiSTercade https://misteraddons.com/products/mistercade https://misteraddons.com/products/mistercade or the MiSTer mini ITX Ironclad Plus https://www.d3fmod.com/mini-itx-ironclad-plus/ https://www.d3fmod.com/mini-itx-ironclad-plus/ None of these are trying to lock people into their solutions, they're just providing other options.