diff --git a/.config/nvim/lua/blake/plugins.lua b/.config/nvim/lua/blake/plugins.lua
index d2b5227..c4b5008 100644
--- a/.config/nvim/lua/blake/plugins.lua
+++ b/.config/nvim/lua/blake/plugins.lua
@@ -94,9 +94,6 @@ return require('packer').startup({function()
          vim.cmd 'cab COL ColorizerToggle'
       end,
    }
-   use { -- lumen:                     make vim respect the system light/dark theme setting (linux + macos)
-      'vimpostor/vim-lumen',
-   }
    use { -- vim-illuminate:            highlight other occurrences of the word under cursor
       'RRethy/vim-illuminate',
       -- commit = '27f6ef135a88d9410a33cf92fc47f5c018df552c', -- for finding the correct color to make highlights
diff --git a/.config/shell/aliases b/.config/shell/aliases
index 1ad33c0..50f4a1e 100644
--- a/.config/shell/aliases
+++ b/.config/shell/aliases
@@ -117,6 +117,12 @@ alias                                                     \
    dc='docker-compose'                                    \
    occ='docker exec -u www-data nextcloud php occ --ansi' \
 
+# Nix
+alias                                             \
+   nx='sudo $EDITOR /etc/nixos/configuration.nix' \
+   nx-upd='sudo nix-channel --update'             \
+   nx-upg='sudo nixos-rebuild switch'             \
+
 # file copying with a progress bar
 alias cpv="rsync -ah --info=progress2"