{ disko.devices = { disk.main = { device = "/dev/sda"; type = "disk"; content = { type = "gpt"; partitions = { boot = { name = "boot"; size = "1M"; type = "EF02"; }; esp = { name = "esp"; size = "512M"; type = "EF00"; content = { type = "filesystem"; format = "vfat"; mountpoint = "/boot"; mountOptions = [ "umask=0077" ]; }; }; root = { name = "root"; size = "100%"; content = { type = "btrfs"; extraArgs = [ "-f" ]; subvolumes = let mountOptions = [ "compress=zstd:1" "noatime" "user_subvol_rm_allowed" ]; in { "@" = { mountpoint = "/"; inherit mountOptions; }; }; }; }; }; }; }; }; }