diff --git a/flake.nix b/flake.nix
index a1d3fc5..34de55b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -181,6 +181,7 @@
     };
 
   # {{{ Caching and whatnot
+  # TODO: persist trusted substituters file
   nixConfig = {
     extra-substituters = [
       "https://nix-community.cachix.org" # I think I need this for neovim-nightly?