nix: Make nix the root

Which means now I'll have to think about real prefixes in commit names.

hm/inputrc

@@ -0,0 +1,26 @@
+$if mode=vi
+    # these are for vi-command mode
+    set keymap vi-command
+    "k": history-search-backward
+    "j": history-search-forward
+    "\e[A": history-search-backward
+    "\e[B": history-search-forward
+    Control-l: clear-screen
+
+    # these are for vi-insert mode
+    set keymap vi-insert
+    "jk": vi-movement-mode
+    "\e[A": history-search-backward
+    "\e[B": history-search-forward
+    Control-l: clear-screen
+
+    # Switch between thin cursor and thicc block depending on vi mode
+    $if term=linux
+        set vi-ins-mode-string \1\e[?0c\2
+        set vi-cmd-mode-string \1\e[?8c\2
+    $else
+        set vi-ins-mode-string \1\e[6 q\2
+        set vi-cmd-mode-string \1\e[2 q\2
+    $endif
+$endif
+