For storage at least, you can pop your existing nvme drive into a thunderbolt enclosure and use it on a mac mini. Over TB4, it should run at the drive's full sp

For storage at least, you can pop your existing nvme drive into a thunderbolt enclosure and use it on a mac mini. Over TB4, it should run at the drive's full speed (so long as you get a decent enclosure). It won't help the RAM situation, but storage at least is upgradable like that.