CPU only miner.
Main support for ARMv7 (32) and  ARMv8 (aarch64)
Main link: https://github.com/glukolog/cpuminer-opt
Open source, and free.

Install & use brief: https://github.com/glukolog/cpuminer-opt/blob/master/README.md
Install howto with packets: https://github.com/JayDDee/cpuminer-opt/blob/master/INSTALL_LINUX
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Not all algorithms worked, some of them will be removed as not profitable.
No releases, please compile by you self.
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Donation for support:
will be added.. )))