diff --git a/.chezmoiscripts/run_once_after_30_install_hunk.sh b/.chezmoiscripts/run_once_after_30_install_hunk.sh
new file mode 100644
index 0000000..77c0c09
--- /dev/null
+++ b/.chezmoiscripts/run_once_after_30_install_hunk.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+set -eufo pipefail
+
+if [ "${CHEZMOI_SKIP_HUNK_INSTALL:-0}" = "1" ]; then
+    exit 0
+fi
+
+# Volta is user-installed (see dot_zshenv); skip cleanly when absent so a
+# fresh host that hasn't bootstrapped Volta yet doesn't fail apply.
+if [ ! -x "$HOME/.volta/bin/volta" ]; then
+    echo "⏭   Skipping hunk install: Volta not found at \$HOME/.volta"
+    exit 0
+fi
+
+export VOLTA_HOME="$HOME/.volta"
+export PATH="$VOLTA_HOME/bin:$PATH"
+
+if command -v hunk &>/dev/null; then
+    exit 0
+fi
+
+echo "📦  Installing hunkdiff via Volta"
+volta install hunkdiff
diff --git a/dot_config/git/config.tmpl b/dot_config/git/config.tmpl
index efaa08b..405320c 100644
--- a/dot_config/git/config.tmpl
+++ b/dot_config/git/config.tmpl
@@ -40,6 +40,11 @@
     ds = diff --staged
     dt = difftool
     dump = cat-file -p
+
+    # hunk — terminal diff viewer (opt-in; delta remains the default pager)
+    hd = !hunk diff
+    hs = !hunk show
+    hp = !hunk pager
     pusho = !git push --set-upstream origin `git cb`
     root = rev-parse --show-toplevel
     st = status
diff --git a/dot_config/hunk/config.toml b/dot_config/hunk/config.toml
new file mode 100644
index 0000000..5820cfb
--- /dev/null
+++ b/dot_config/hunk/config.toml
@@ -0,0 +1,6 @@
+theme = "midnight"
+mode = "auto"
+line_numbers = true
+wrap_lines = false
+exclude_untracked = false
+agent_notes = true