2025-04-05 13:05:59 +11:00
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{ ... }:
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let
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mkLabelMount = label: type: options: {
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device = "/dev/disk/by-label/${label}";
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fsType = type;
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2025-04-05 13:22:12 +11:00
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options = [ "defaults" ] ++ options;
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2025-04-05 13:05:59 +11:00
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};
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mkBtrfsMount = name: ext: subvol: atime: mkLabelMount name "btrfs"
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2025-04-05 13:18:05 +11:00
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([
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2025-04-05 13:05:59 +11:00
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"autodefrag"
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"compress=zstd:4"
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"compress-force=zstd:4"
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"defaults"
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"nossd"
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"space_cache=v2"
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"subvol=${subvol}"
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(if atime then "relatime" else "noatime")
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2025-04-05 13:18:05 +11:00
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] ++ ext);
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2025-04-05 13:05:59 +11:00
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2025-04-05 13:42:08 +11:00
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mkHazelMount = mkBtrfsMount "HAZEL" [];
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2025-04-05 13:05:59 +11:00
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in
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{
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boot.supportedFilesystems = [ "btrfs" ];
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fileSystems = {
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"/" = {
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device = "rootfs";
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fsType = "tmpfs";
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options = [ "defaults" "mode=755" ];
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};
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"/boot" = mkLabelMount "ROOT" "vfat" [];
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"/flower" = mkHazelMount "/current/flower" true;
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"/persist" = mkHazelMount "/current/persist" true;
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"/var" = mkHazelMount "/current/var" true;
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"/nix" = mkHazelMount "/current/nix" false;
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"/mnt" = mkHazelMount "/" true;
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};
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services.snapper.cleanupInterval = "1h";
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services.snapper.configs.flower = {
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FSTYPE = "btrfs";
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SUBVOLUME = "/mnt/current/flower";
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TIMELINE_CLEANUP = true;
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TIMELINE_CREATE = true;
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TIMELINE_MIN_AGE = "1800";
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TIMELINE_LIMIT_HOURLY = "5";
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TIMELINE_LIMIT_DAILY = "7";
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TIMELINE_LIMIT_WEEKLY = "0";
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TIMELINE_LIMIT_MONTHLY = "0";
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TIMELINE_LIMIT_YEARLY = "0";
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};
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}
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