nix-bitcoin/docs/hardware.md

Hardware requirements

• Disk space: 500 GB (400GB for Bitcoin blockchain + some room)
  • Bitcoin Core pruning is not supported at the moment because it's not supported by c-lightning. It's possible to use pruning but you need to know what you're doing.
• RAM: 2GB of memory. ECC memory is better. Additionally, it's recommended to use DDR4 memory with targeted row refresh (TRR) enabled (https://rambleed.com/).

Tested hardware includes pcengine's apu2c4, GB-BACE-3150, GB-BACE-3160. Some hardware (including Intel NUCs) may not be compatible with the hardened kernel turned on by default (see https://github.com/fort-nix/nix-bitcoin/issues/39#issuecomment-517366093 for a workaround).