3 files changed, 8 insertions, 173 deletions
diff --git a/sys/fs/btrfs.nix b/sys/btrfs/snapper.nix
index f240b0d..27d2779 100644
--- a/sys/fs/btrfs.nix
+++ b/sys/btrfs/snapper.nix
@@ -1,60 +1,17 @@
-{ lib, config, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 with lib; let
-  cfg = config.local;
+  cfg = config.local.btrfs;
 in
 {
-  options.local = with lib.types; {
-    snapperSubvols = mkOption {
-      type = attrsOf str;
+  options.local.btrfs = {
+    snapper = mkOption {
+      type = with lib.types; attrsOf str;
       default = { };
     };
-
-    fs.btrfs = mkOption {
-      default = [ ];
-
-      type = attrsOf (submodule {
-        options = {
-          device = mkOption {
-            type = str;
-          };
-
-          subvol = mkOption {
-            type = str;
-          };
-
-          ssd = mkOption {
-            type = bool;
-          };
-
-          snapper = mkOption {
-            type = nullOr str;
-            default = null;
-          };
-        };
-      });
-    };
   };
 
-  config = {
-    environment.systemPackages = optional (cfg.snapperSubvols != { }) pkgs.local.btclone;
-
-    fileSystems =
-      let
-        inherit (cfg) fs;
-        btrfs = { device, subvol, ssd, ... }: {
-          inherit device;
-          fsType = "btrfs";
-          options = [ "noatime" "compress=zstd" "subvol=${subvol}" ] ++ optional ssd "ssd";
-        };
-      in
-      mapAttrs (_: btrfs) cfg.fs.btrfs;
-
-    local.snapperSubvols =
-      let
-        snapperEntry = path: opts: { name = opts.snapper; value = path; };
-        validEntry = _: opts: opts.snapper != null;
-      in
-      mapAttrs' snapperEntry (filterAttrs validEntry cfg.fs.btrfs);
+  config = mkIf (cfg.snapper != { }) {
+    environment.systemPackages = [ pkgs.local.btclone ];
 
     services.snapper.configs =
       let
@@ -111,6 +68,6 @@ in
           EMPTY_PRE_POST_MIN_AGE = "1800";
         };
       in
-      mapAttrs snapperConfig cfg.snapperSubvols;
+      mapAttrs snapperConfig cfg.snapper;
   };
 }
diff --git a/sys/fs/default.nix b/sys/fs/default.nix
deleted file mode 100644
index 41871df..0000000
--- a/sys/fs/default.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{ lib, config, ... }:
-with lib; let
-  cfg = config.local.fs;
-in
-{
-  imports = [ ./btrfs.nix ./layout.nix ];
-
-  options.local.fs = with lib.types; {
-    impermanence = mkOption {
-      type = bool;
-      default = false;
-    };
-
-    boot.device = mkOption {
-      type = str;
-    };
-  };
-
-  config = {
-    # !!!
-    boot.tmp.useTmpfs = true;
-
-    fileSystems."/" = mkIf cfg.impermanence {
-      device = "tmpfs";
-      fsType = "tmpfs";
-      options = [ "size=1G" "mode=755" ];
-    };
-
-    fileSystems."/boot" = {
-      inherit (cfg.boot) device;
-      fsType = "vfat";
-      options = [ "noatime" "umask=027" ];
-    };
-  };
-}
diff --git a/sys/fs/layout.nix b/sys/fs/layout.nix
deleted file mode 100644
index 7e1ac2e..0000000
--- a/sys/fs/layout.nix
+++ /dev/null
@@ -1,87 +0,0 @@
-{ lib, config, ... }:
-with lib; let
-  cfg = config.local;
-in
-{
-  options.local.fs.layout = with lib.types; {
-    sysHddBtrfs = mkOption {
-      default = null;
-
-      type = nullOr (submodule {
-        options = {
-          sys = {
-            device = mkOption {
-              type = str;
-            };
-
-            ssd = mkOption {
-              type = bool;
-            };
-
-            root = mkOption {
-              type = str;
-            };
-
-            toplevel = mkOption {
-              type = str;
-            };
-          };
-
-          hdd = {
-            device = mkOption {
-              type = str;
-            };
-
-            home = mkOption {
-              type = str;
-            };
-          };
-        };
-      });
-    };
-  };
-
-  config = {
-    local.fs.btrfs =
-      let
-        sysHddBtrfs = layout: {
-          "/" = {
-            inherit (layout.sys) device ssd;
-            subvol = layout.sys.root;
-          };
-
-          "/toplevel" = {
-            inherit (layout.sys) device ssd;
-            subvol = layout.sys.toplevel;
-          };
-
-          "/hdd" = {
-            inherit (layout.hdd) device;
-            subvol = "/";
-            ssd = false;
-          };
-
-          "/home" = {
-            inherit (layout.hdd) device;
-            subvol = layout.hdd.home;
-            ssd = false;
-            snapper = "home";
-          };
-        };
-
-        inherit (cfg.fs) layout;
-
-        layoutMaps = [ sysHddBtrfs ];
-        layoutOpts = [ layout.sysHddBtrfs ];
-        valid = filter ({ snd, ... }: snd != null) (zipLists layoutMaps layoutOpts);
-      in
-      optionalAttrs (valid != [ ]) ((head valid).fst (head valid).snd);
-
-    assertions = [
-      {
-        assertion = length (filter (layout: layout != null) (attrValues cfg.fs.layout)) <= 1;
-        message = "Cannot enable more than one filesystem layout";
-      }
-    ];
-  };
-}