diff --git a/home/config/nvim/nifoc/statuscolumn.fnl b/home/config/nvim/nifoc/statuscolumn.fnl
index ec53d69..a6e3244 100644
--- a/home/config/nvim/nifoc/statuscolumn.fnl
+++ b/home/config/nvim/nifoc/statuscolumn.fnl
@@ -59,7 +59,7 @@
             (when (= current nil)
               (tset cache :gitsigns bufnr lnum {:name details.sign_hl_group})))))))
 
-  (aucmd [:BufEnter :CursorHold :CursorHoldI :DiagnosticChanged]
+  (aucmd [:BufEnter :InsertLeave :DiagnosticChanged]
          {:callback #(update-cache-diagnostics $1.buf
                                                (vim.diagnostic.get $1.buf))
           :group augroup
diff --git a/system/hosts/Styx.nix b/system/hosts/Styx.nix
index 48c7ffa..c85bfa7 100644
--- a/system/hosts/Styx.nix
+++ b/system/hosts/Styx.nix
@@ -36,9 +36,16 @@ in
         "https://nix-community.cachix.org?priority=2"
       ];
 
+      trusted-substituters = [
+        "https://attic.hosting.nedeco.mobi/devshells"
+      ];
+
       trusted-public-keys = [
         "nifoc-systems:eDDqVP5BFR6/1KvXbF9oUL8JahDdmbrsYtxlQ57LOTU="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+
+        # trusted-substituters
+        "devshells:YXtbU0DheB229oCr2D0H0qHjj2Ed/e2VZiLSXgQ1IVA="
       ];
 
       trusted-users = [ "@admin" ];