diff --git a/bin/install_tool b/bin/install_tool
index 6ae8312..23acc97 100755
--- a/bin/install_tool
+++ b/bin/install_tool
@@ -401,6 +401,31 @@ EOF
   blint)
     pip3 install --user blint
     ;;
+  dust)
+    if ! command -v cargo >/dev/null 2>&1 ; then
+      echo "This needs cargo (for rust)!" >/dev/stderr
+      exit 1
+    fi
+    cargo install du-dust
+    ;;
+  bottom)
+    if ! command -v cargo >/dev/null 2>&1 ; then
+      echo "This needs cargo (for rust)!" >/dev/stderr
+      exit 1
+    fi
+    cargo install bottom
+    ;;
+  delta)
+    if !check_sudo ; then
+      echo "Must be able to run as sudo."
+      exit 1
+    fi
+    dpkg_url=$(curl https://api.github.com/repos/dandavison/delta/releases/latest | \
+      jq -r '.assets[] | select(.name|test(".*_amd64.deb")) | select(.name|test(".*musl.*")|not) | .browser_download_url')
+    dpkg_name="/tmp/delta_amd64.deb"
+    download "${dpkg_url}" "${dpkg_name}"
+    sudo dpkg -i "${dpkg_name}"
+    ;;
   *)
     echo "Unknown tool: ${TOOL}" >/dev/stderr
     list_tools
diff --git a/dotfiles/zshrc.d/usage.zsh b/dotfiles/zshrc.d/usage.zsh
index d9f1513..5aa1680 100644
--- a/dotfiles/zshrc.d/usage.zsh
+++ b/dotfiles/zshrc.d/usage.zsh
@@ -1,3 +1,3 @@
-function duf {
+function duh {
      du -sk "$@" | sort -n | while read size fname; do for unit in K M G T P E Z Y; do if [ $size -lt 1024 ]; then echo -e "${size}${unit}\t${fname}"; break; fi; size=$((size/1024)); done; done
 }
diff --git a/packages.cli b/packages.cli
index ddddff8..78089aa 100644
--- a/packages.cli
+++ b/packages.cli
@@ -4,7 +4,10 @@ build-essential
 cryptsetup
 dsniff
 ecryptfs-utils
+exa
 exuberant-ctags
+fd-find
+fzf
 httpie
 iftop
 iptraf