Remove foehammer backups abstraction, since it was possibly leaky.

machines/lebesgue/config/state.nix

@@ -2,15 +2,14 @@
   sops.age.sshKeyPaths = ["/persist/etc/ssh/ssh_host_ed25519_key"];
 
   environment.persistence."/persist" = {
-    directories =
+    directories = [
-      [
+      "/var/lib/tailscale"
-        "/var/lib/tailscale"
+      "/var/log"
-        "/var/log"
+      "/var/lib/nixos"
-        "/var/lib/nixos"
+      "/var/lib/docker"
-        "/var/lib/docker"
+      "/var/lib/caddy/.local/share/caddy"
-        "/var/lib/caddy/.local/share/caddy"
+      "/var/lib/vaultwarden"
-      ]
+    ];
-      ++ config.foehammer.backups.paths;
 
     files = [
       "/etc/machine-id"

nixos/common/backups.nix

@@ -1,11 +0,0 @@
-{lib, ...}: let
-  inherit (lib) mkOption types;
-in {
-  # Generic Backups.
-  options.foehammer.backups = {
-    paths = mkOption {
-      type = types.nullOr (types.listOf types.str);
-      default = [];
-    };
-  };
-}

nixos/common/services/vaultwarden.nix

@@ -47,9 +47,5 @@ in {
 
       environmentFile = cfg.envPath;
     };
-
-    foehammer.backups.paths = [
-      "/var/lib/vaultwarden"
-    ];
   };
 }