https://www.neowin.net/news/meta-is-reusing-old-ddr4-ram-in-...
And maybe introduce some technological improvements, too. Like portable millsites and leach pads so you don't fuck up the landscape with dead buildings and environmental waste. And maybe look into some chemical process improvements, like using DMSO instead of cyanide for leaching gold.
Oh, and look into using Z-pinching for mining so we don't need explosives, we just need capacitors and metal tubes and drills to make precision tunnels to grab ore and leave more of the land intact.