diff --git a/update-manually-installed-software.sh b/update-manually-installed-software.sh
new file mode 100755
index 0000000..4cb7626
--- /dev/null
+++ b/update-manually-installed-software.sh
@@ -0,0 +1,40 @@
+#!/bin/zsh -e
+# Short Zsh script to compare some of my manually installed software against
+# what is apparently available on Github, PyPI or whatever remote hell.
+# Requires curl.
+
+GH="https://github.com"
+GH_TAIL="releases/latest"
+
+get_latest_tag() {
+    redirect="$(curl "$1" -v 2>&1 | grep "^< location:")"
+    echo "${redirect##*/}"
+}
+
+check_neovim() {
+    echo "# Neovim"
+    echo "Installed: $(nvim -v | head -n 1)"
+    echo "Available: $(get_latest_tag "$GH/neovim/neovim/$GH_TAIL")"
+}
+
+check_alacritty() {
+    echo "# Alacritty"
+    echo "Installed: $(alacritty -V)"
+    echo "Available: $(get_latest_tag "$GH/alacritty/alacritty/$GH_TAIL")"
+}
+
+check_cheat() {
+    echo "# Cheat"
+    echo "Installed: $(cheat -v)"
+    echo "Available: $(get_latest_tag "$GH/cheat/cheat/$GH_TAIL")"
+}
+
+check_python_packages() {
+    echo "# Python user packages"
+    pip3 list -o --user
+}
+
+(( $+commands[nvim] )) && check_neovim
+(( $+commands[alacritty] )) && check_alacritty
+(( $+commands[cheat] )) && check_cheat
+check_python_packages