Sure, you don't have the option of not using open source software for some of the cisco and arista switches and routers on nexthops over the internet, but you c

Sure, you don't have the option of not using open source software for some of the cisco and arista switches and routers on nexthops over the internet, but you certainly CAN use paid-for closed-source software (from operating system up to webserver) on a server that you set up, in a colo that you pay for, to run your blog.