diff --git a/bin/null b/bin/null
new file mode 100755
index 0000000..83bb898
--- /dev/null
+++ b/bin/null
@@ -0,0 +1,3 @@
+#! /usr/bin/env bash
+
+# We don't do anything
diff --git a/bin/wf b/bin/wf
new file mode 100755
index 0000000..44a4bcc
--- /dev/null
+++ b/bin/wf
@@ -0,0 +1,4 @@
+#! /usr/bin/env bash
+
+sudo tee "$1" | null
+
diff --git a/fish/config.fish b/fish/config.fish
index 67cd56b..596022f 100644
--- a/fish/config.fish
+++ b/fish/config.fish
@@ -19,6 +19,9 @@ set PATH $PATH /opt/homebrew-cask/Caskroom/atom/latest/Atom.app/Contents/Resourc
 # DYLD_LIBRARY_PATH (Rust asked for this)
 set DYLD_LIBRARY_PATH "/usr/local/lib" "$DYLD_LIBRARY_PATH"
 
+# Mono asked for this:
+source dnvm.sh
+
 # For GitHub integration.
 # See github.com/github/hub
 alias git hub