diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a389bad..cd56f52 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -45,6 +45,8 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
+    - name: Upgrade the outdated bash
+      run: brew install bash
     - name: Run setup approval tests
       run: test/approve_setup
 
diff --git a/setup b/setup
index 7cfafe6..9ad726c 100755
--- a/setup
+++ b/setup
@@ -1,53 +1,39 @@
 #!/usr/bin/env bash
-
-fuzzy_cd_setup() {
-  patched="no"
-
-  patch_file() {
-    file="$1"
-    if grep -q fuzzycd "$file"; then
-      echo "=== Skipping $file"
-      return
-    fi
-
-    echo "=== Amending $file"
-    printf "source /usr/local/bin/fuzzycd\n" >>"$file"
-    patched="yes"
-  }
-
-  download_script() {
-    echo "=== Saving fuzzycd to /usr/local/bin"
-
-    sudo=''
-    if [[ $EUID -ne 0 ]]; then
-      sudo='sudo'
-    fi
-
-    curl_command="curl -s https://raw.githubusercontent.com/DannyBen/fuzzycd/master/fuzzycd > /usr/local/bin/fuzzycd"
-    $sudo bash -c "$curl_command"
-    $sudo chmod 755 /usr/local/bin/fuzzycd
-  }
-
-  patch_startup_files() {
-    patched="no"
-    echo "=== Searching for startup files"
-    [[ -f "$HOME/.zshrc" ]] && patch_file "$HOME/.zshrc"
-    [[ -f "$HOME/.bashrc" ]] && patch_file "$HOME/.bashrc"
-  }
-
-  show_exit_message() {
-    if [[ $patched == "yes" ]]; then
-      echo "=== Done. You may need to source $file or restart your session"
-    else
-      echo "=== Setup is INCOMPLETE"
-      echo "    Add 'source ~/.fuzzy-cd/fuzzy-cd' to your shell's initialization script"
-      exit 1
-    fi
-  }
-
-  download_script
-  patch_startup_files
-  show_exit_message
-}
-
-fuzzy_cd_setup
+set -euo pipefail
+
+# === Setup SSI ===
+
+echo "Initializing installer..."
+tmpdir="$(mktemp -d)"
+trap 'rm -rf "$tmpdir"' EXIT
+cd "$tmpdir"
+export PATH="$tmpdir:$PATH"
+
+if command -v curl >/dev/null 2>&1; then
+  curl -fSsL https://github.com/DannyBen/ssi/releases/download/v0.1.4/ssi -o ssi
+elif command -v wget >/dev/null 2>&1; then
+  wget -nv -O ssi https://github.com/DannyBen/ssi/releases/download/v0.1.4/ssi
+else
+  echo "Error: please install wget or curl, then try again" >&2
+  exit 1
+fi
+chmod +x ssi
+
+# === Install ===
+
+ssi log info "Installing fuzzycd"
+ssi install bin https://raw.githubusercontent.com/DannyBen/fuzzycd/master/fuzzycd
+
+cat <<'EOF' | ssi install startup --shell bash --name fuzzycd.bashrc -
+if command -v fuzzycd >/dev/null 2>&1; then
+  source "$(command -v fuzzycd)"
+fi
+EOF
+
+cat <<'EOF' | ssi install startup --shell zsh --name fuzzycd.zshrc -
+if command -v fuzzycd >/dev/null 2>&1; then
+  source "$(command -v fuzzycd)"
+fi
+EOF
+
+ssi log info "fuzzycd -v : $(fuzzycd -v)"
diff --git a/test/approve_setup b/test/approve_setup
index 77e35a3..e7c3ba0 100755
--- a/test/approve_setup
+++ b/test/approve_setup
@@ -19,6 +19,7 @@ source /usr/local/bin/fuzzycd
 describe "cd is a function"
   [[ "$(type -t cd)" == "function" ]] || fail "Expected function got $(type -t cd)"
 
-describe "~/.bashrc contains the source directive"
-  grep -q fuzzycd ~/.bashrc || fail "Expected to find source directive in ~/.bashrc"
+describe "~/.bashrc.d contains the source directive file"
+  [[ -f ~/.bashrc.d/fuzzycd.bashrc ]] || fail "Expected to find source directive in ~/.bashrc"
 
+../uninstall
diff --git a/uninstall b/uninstall
new file mode 100755
index 0000000..e3cd94f
--- /dev/null
+++ b/uninstall
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# === Setup SSI ===
+
+echo "Initializing installer..."
+tmpdir="$(mktemp -d)"
+trap 'rm -rf "$tmpdir"' EXIT
+cd "$tmpdir"
+export PATH="$tmpdir:$PATH"
+
+if command -v curl >/dev/null 2>&1; then
+  curl -fSsL https://github.com/DannyBen/ssi/releases/download/v0.1.4/ssi -o ssi
+elif command -v wget >/dev/null 2>&1; then
+  wget -nv -O ssi https://github.com/DannyBen/ssi/releases/download/v0.1.4/ssi
+else
+  echo "Error: please install wget or curl, then try again" >&2
+  exit 1
+fi
+chmod +x ssi
+
+# === Uninstall ===
+
+ssi log info "Uninstalling fuzzycd"
+ssi uninstall bin fuzzycd
+ssi uninstall startup --shell bash fuzzycd.bashrc
+ssi uninstall startup --shell zsh fuzzycd.zshrc