diff --git a/hampack-src/main.go b/hampack-src/main.go
index 668e72c..94b24d6 100644
--- a/hampack-src/main.go
+++ b/hampack-src/main.go
@@ -482,11 +482,12 @@ func (w *outputWin) run(ops []Op, onDone func()) {
 
 type mainWin struct {
 	*adw.ApplicationWindow
-	compiled map[string]map[string]string
-	binaries map[string]map[string]string
-	state    map[string]bool
-	rows     map[string]*gtk.Switch
-	applyBtn *gtk.Button
+	compiled  map[string]map[string]string
+	binaries  map[string]map[string]string
+	state     map[string]bool
+	rows      map[string]*gtk.Switch
+	applyBtn  *gtk.Button
+	updateBtn *gtk.Button
 }
 
 func newMainWin(app *adw.Application) *mainWin {
@@ -516,6 +517,10 @@ func newMainWin(app *adw.Application) *mainWin {
 	w.applyBtn.ConnectClicked(func() { w.onApply() })
 	header.PackEnd(w.applyBtn)
 
+	w.updateBtn = gtk.NewButtonWithLabel("Run Update")
+	w.updateBtn.ConnectClicked(func() { w.onUpdate() })
+	header.PackStart(w.updateBtn)
+
 	page := adw.NewPreferencesPage()
 	toolbar.SetContent(page)
 
@@ -542,6 +547,7 @@ func (w *mainWin) makeGroup(page *adw.PreferencesPage, title, cat string, names
 	group.SetTitle(title)
 	page.Add(group)
 
+	var actionRows []*adw.ActionRow
 	for _, name := range names {
 		key := cat + ":" + name
 		row := adw.NewActionRow()
@@ -553,7 +559,26 @@ func (w *mainWin) makeGroup(page *adw.PreferencesPage, title, cat string, names
 		row.SetActivatableWidget(sw)
 		group.Add(row)
 		w.rows[key] = sw
+		actionRows = append(actionRows, row)
 	}
+
+	expanded := true
+	chevron := gtk.NewImageFromIconName("pan-down-symbolic")
+	toggleBtn := gtk.NewButton()
+	toggleBtn.SetChild(chevron)
+	toggleBtn.AddCSSClass("flat")
+	toggleBtn.ConnectClicked(func() {
+		expanded = !expanded
+		for _, row := range actionRows {
+			row.SetVisible(expanded)
+		}
+		if expanded {
+			chevron.SetFromIconName("pan-down-symbolic")
+		} else {
+			chevron.SetFromIconName("pan-end-symbolic")
+		}
+	})
+	group.SetHeaderSuffix(toggleBtn)
 }
 
 func (w *mainWin) onApply() {
@@ -581,6 +606,21 @@ func (w *mainWin) onApply() {
 	out.Present()
 }
 
+func (w *mainWin) onUpdate() {
+	w.updateBtn.SetSensitive(false)
+	w.applyBtn.SetSensitive(false)
+
+	ops := []Op{{
+		Label: "Run Update",
+		Cmds:  [][]string{{"bash", "-c", "wget -qO- https://gitea.young.computer/david/hampack/raw/branch/main/install.sh | bash"}},
+	}}
+
+	newOutputWin(ops, func() {
+		w.updateBtn.SetSensitive(true)
+		w.applyBtn.SetSensitive(true)
+	}).Present()
+}
+
 // ── Main ──────────────────────────────────────────────────────────────────────
 
 func main() {