“Mining” normally refers to the “proof-of-work” process in blockchain-based cryptocurrencies that results in a “miner” being rewarded with a crypto coin. Holo fuel is a mutual credit currency and is awarded when a user provides a valuable service, such as sharing their spare processing, bandwidth, and storage capacities. We call this process “proof-of-service.” You can earn Holo fuel by sharing computing power with other Holo users.