nix-index/nix-locate: re-enable

hosts/common/programs/assorted.nix

@@ -128,6 +128,7 @@ let
       neovim  # needed as a user package, for swap persistence
       # nettools
       # networkmanager
+      nix-index
       nixpkgs-review
       # nixos-generators
       nmon

hosts/common/programs/default.nix

@@ -19,6 +19,7 @@
     ./mpv.nix
     ./neovim.nix
     ./newsflash.nix
+    ./nix-index.nix
     ./offlineimap.nix
     ./ripgrep.nix
     ./sfeed.nix

hosts/common/programs/nix-index.nix

@@ -0,0 +1,7 @@
+{ config, lib, ... }:
+{
+  # provides `nix-locate`, backed by the manually run `nix-index`
+  sane.programs.nix-index = {
+    persist.plaintext = [ ".cache/nix-index" ];
+  };
+}

hosts/common/users/colin.nix

@@ -73,7 +73,6 @@
       "Videos"
 
       ".cache/nix"
-      ".cache/nix-index"
 
       # ".cargo"
       # ".rustup"