diff --git a/bin/new-project b/bin/new-project
index 8c8f647..e755790 100755
--- a/bin/new-project
+++ b/bin/new-project
@@ -338,6 +338,42 @@ setup_documentation() {
     log_success "Created documentation with symlink"
 }
 
+update_sidebar() {
+    local name="$1"
+    local title="$2"
+    local sidebar_file="$PROJECT_DOCS_ROOT/sidebars.ts"
+
+    log_step "Updating sidebars.ts"
+
+    if [[ "$DRY_RUN" == true ]]; then
+        log_info "[DRY RUN] Would add '$title' to sidebar"
+        return 0
+    fi
+
+    # Check if already exists
+    if grep -q "projects/$name/overview" "$sidebar_file"; then
+        log_warn "Project already in sidebar"
+        return 0
+    fi
+
+    # Create the new sidebar entry
+    local sidebar_entry="    {
+      type: 'category',
+      label: '$title',
+      collapsed: true,
+      items: [
+        'projects/$name/overview',
+        'projects/$name/updating-documentation',
+      ],
+    },"
+
+    # Insert before "Goals & Roadmap" category
+    # Use perl for multi-line insertion (more reliable than sed)
+    perl -i -p0e "s|(\\s+\\{\\s+type: 'category',\\s+label: 'Goals & Roadmap',)|$sidebar_entry\n\$1|s" "$sidebar_file"
+
+    log_success "Added project to sidebar"
+}
+
 update_build_script() {
     local name="$1"
     local title="$2"
@@ -444,6 +480,7 @@ main() {
     create_local_project "$PROJECT_NAME"
     generate_project_files "$PROJECT_NAME" "$PROJECT_TITLE" "$PROJECT_TAGLINE"
     setup_documentation "$PROJECT_NAME" "$PROJECT_TITLE" "$PROJECT_TAGLINE"
+    update_sidebar "$PROJECT_NAME" "$PROJECT_TITLE"
     update_build_script "$PROJECT_NAME" "$PROJECT_TITLE" "$PROJECT_TAGLINE"
     initial_commit "$PROJECT_NAME"