/usr/local/ is a place to put software that's not managed the same way. It keeps the systemwide package management from overwriting or otherwise disrupting sof

/usr/local/ is a place to put software that's not managed the same way. It keeps the systemwide package management from overwriting or otherwise disrupting software it doesn't know about. Software in /s?bin/ /usr/s?bin/ /usr/lib/ etc. is not guaranteed to work on another machine. A binary could be for a different architecture, even if it was installed by the main package manager. You can't copy /usr/bin/ binaries from an arm platform to an x86 platform, for instance. You can't copy optimized crypto software using aes-ni instructions to pre-aes-ni systems; it'll crash. You can't even reliably copy binaries from a different machine with the same cpu model, if the machines are using different package sets that will result in library incompatibilities.