Use $REPOS variable consistently in scripts

lib/shared/modules/tmux.nix

@@ -97,8 +97,8 @@ in
       bind-key -T copy-mode-vi 'C-\' select-pane -l
 
       bind-key -r F new-window t
-      bind-key -r D run-shell "t ~/Code/dotfiles.nix"
-      bind-key -r N run-shell "t ~/Code/opdavies.nvim"
+      bind-key -r D run-shell "t $REPOS/dotfiles.nix"
+      bind-key -r N run-shell "t $REPOS/opdavies.nvim"
       bind-key -r W run-shell "t ~/Documents/wiki"
 
       set -g @resurrect-strategy-nvim 'session'

lib/shared/modules/zsh/aliases.nix

@@ -10,5 +10,5 @@
   secrets = ''doppler --project "$(whoami)" run'';
   tag = "tag-release";
   wt = "git worktree";
-  vss = "LC_ALL=C sort --unique ~/Code/opdavies.nvim/spell/en.utf-8.add --output ~/Code/personal/opdavies.nvim/spell/en.utf-8.add";
+  vss = "LC_ALL=C sort --unique $REPOS/opdavies.nvim/spell/en.utf-8.add --output $REPOS/opdavies.nvim/spell/en.utf-8.add";
 }

lib/shared/scripts/t.nix

@@ -49,7 +49,7 @@
       else
         # Get the session name from fuzzy-finding list of directories and generating a
         # tmux-safe version.
-        items=$(find ~/Code ~/Documents /tmp \
+        items=$(find "$REPOS" ~/Documents /tmp \
           -maxdepth 1 -mindepth 1 -type d \
           ! -name "_archive" \
           ! -name "*-old" \