Comply with a commercial operator or use free software. Make sure to buy hardware which supports such from the get-go, especially make sure the hardware can not be disabled or crippled by the manufacturer for violating some nonsensical licence. In plain English this now means "don't buy Apple hardware" as this platform is hostile to free software (e.g. T2 chip which shuts down the machine when 'unlicensed' software (read 'Linux') is used, etc).