Comment by funimpoded

That’s… the game console market. Even the NES in the ‘80s tried to lock out unauthorized (by Nintendo) software. When the screen flashes over and over on boot, that’s the lockout chip not seeing what it expects (due to a poor connection, usually, if it’s a cartridge that should work). Though I hear the latest Xbox is notably more open than the norm, and of course a living-room PC from Valve would buck that trend entirely.