diff --git a/extensions/pagetop-bootsier/src/lib.rs b/extensions/pagetop-bootsier/src/lib.rs
index 23e07722..5fabdacc 100644
--- a/extensions/pagetop-bootsier/src/lib.rs
+++ b/extensions/pagetop-bootsier/src/lib.rs
@@ -35,6 +35,7 @@ use pagetop::prelude::*;
 
 struct MyApp;
 
+#[async_trait]
 impl Extension for MyApp {
     fn dependencies(&self) -> Vec<ExtensionRef> {
         vec![
@@ -69,13 +70,13 @@ async fn homepage(request: HttpRequest) -> Result<Markup, ErrorPage> {
                     p { (L10n::l("sample_content").using(cx)) }
                 })),
         )
-        .render()
+        .render().await
 }
 ```
 */
 
 #![doc(
-    html_favicon_url = "https://git.cillero.es/manuelcillero/pagetop/raw/branch/main/static/favicon.ico"
+    html_favicon_url = "https://git.cillero.es/manuelcillero/pagetop/raw/branch/main/assets/favicon.ico"
 )]
 
 use pagetop::prelude::*;
@@ -99,6 +100,7 @@ mod handlers {
 /// Implementa el tema.
 pub struct Bootsier;
 
+#[async_trait]
 impl Extension for Bootsier {
     fn name(&self) -> L10n {
         L10n::t("extension_name", &LOCALES_BOOTSIER)
@@ -128,13 +130,14 @@ impl Extension for Bootsier {
     }
 }
 
+#[async_trait]
 impl Theme for Bootsier {
     #[inline]
     fn default_template(&self) -> TemplateRef {
         &BootsierTemplate::Standard
     }
 
-    fn handle_component(
+    async fn handle_component(
         &self,
         component: &mut dyn Component,
         cx: &mut Context,
diff --git a/extensions/pagetop-bootsier/src/theme/bs/container/component.rs b/extensions/pagetop-bootsier/src/theme/bs/container/component.rs
index a398a05b..b0fba98e 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/container/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/container/component.rs
@@ -31,6 +31,7 @@ pub struct Container {
     children: Children,
 }
 
+#[async_trait]
 impl Component for Container {
     fn new() -> Self {
         Self::default()
@@ -44,8 +45,8 @@ impl Component for Container {
         self.alter_prop(PropsOp::prepend_classes(self.container_width().to_class()));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
-        let output = self.children().render(cx);
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+        let output = self.children().render(cx).await;
         if output.is_empty() {
             return Ok(html! {});
         }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/dropdown/component.rs b/extensions/pagetop-bootsier/src/theme/bs/dropdown/component.rs
index 0ae36f51..942f425c 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/dropdown/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/dropdown/component.rs
@@ -63,6 +63,7 @@ pub struct Dropdown {
     items: Children,
 }
 
+#[async_trait]
 impl Component for Dropdown {
     fn new() -> Self {
         Self::default()
@@ -78,9 +79,9 @@ impl Component for Dropdown {
         ));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         // Si no hay elementos en el menú, no se prepara.
-        let items = self.items().render(cx);
+        let items = self.items().render(cx).await;
         if items.is_empty() {
             return Ok(html! {});
         }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/dropdown/item.rs b/extensions/pagetop-bootsier/src/theme/bs/dropdown/item.rs
index 75d5dd8b..df3947b7 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/dropdown/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/dropdown/item.rs
@@ -51,6 +51,7 @@ pub struct Item {
     item_kind: ItemKind,
 }
 
+#[async_trait]
 impl Component for Item {
     fn new() -> Self {
         Self::default()
@@ -60,7 +61,7 @@ impl Component for Item {
         self.props.get_id()
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         Ok(match self.item_kind() {
             ItemKind::Void => html! {},
 
diff --git a/extensions/pagetop-bootsier/src/theme/bs/dropdown/props.rs b/extensions/pagetop-bootsier/src/theme/bs/dropdown/props.rs
index ef1a0de0..a607fc80 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/dropdown/props.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/dropdown/props.rs
@@ -112,7 +112,7 @@ impl Direction {
 /// Alineación horizontal del menú desplegable [`Dropdown`](crate::theme::bs::Dropdown).
 ///
 /// Permite alinear el menú al inicio o al final del botón (respetando LTR/RTL) y añadirle una
-/// alineación diferente a partir de un punto de ruptura ([`BreakPoint`]).
+/// alineación diferente a partir de un punto de ruptura ([`BreakPoint`](token::BreakPoint)).
 #[derive(AutoDefault, Clone, Copy, Debug, PartialEq)]
 pub enum MenuAlign {
     /// Alineación al inicio (comportamiento por defecto).
diff --git a/extensions/pagetop-bootsier/src/theme/bs/icon.rs b/extensions/pagetop-bootsier/src/theme/bs/icon.rs
index 970a6cd4..1b519eaf 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/icon.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/icon.rs
@@ -21,6 +21,7 @@ pub struct Icon {
     aria_label: AttrL10n,
 }
 
+#[async_trait]
 impl Component for Icon {
     fn new() -> Self {
         Self::default()
@@ -39,7 +40,7 @@ impl Component for Icon {
         }
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         Ok(match self.icon_kind() {
             IconKind::None => html! {},
             IconKind::Font(_) => {
diff --git a/extensions/pagetop-bootsier/src/theme/bs/image/component.rs b/extensions/pagetop-bootsier/src/theme/bs/image/component.rs
index 2fe128b6..fb740ab1 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/image/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/image/component.rs
@@ -24,6 +24,7 @@ pub struct Image {
     alternative: Attr<L10n>,
 }
 
+#[async_trait]
 impl Component for Image {
     fn new() -> Self {
         Self::default()
@@ -38,7 +39,7 @@ impl Component for Image {
         self.alter_prop(PropsOp::prepend_classes(self.source().to_class()));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         let dimensions = self.size().to_style();
         let alt_text = self.alternative().lookup(cx).unwrap_or_default();
         let is_decorative = alt_text.is_empty();
@@ -52,7 +53,7 @@ impl Component for Image {
                         aria-label=[(!is_decorative).then_some(alt_text)]
                         aria-hidden=[is_decorative.then_some("true")]
                     {
-                        (logo.render(cx))
+                        (logo.markup(cx))
                     }
                 });
             }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/nav/component.rs b/extensions/pagetop-bootsier/src/theme/bs/nav/component.rs
index 70ed1861..c7f3df0f 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/nav/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/nav/component.rs
@@ -44,6 +44,7 @@ pub struct Nav {
     items: Children,
 }
 
+#[async_trait]
 impl Component for Nav {
     fn new() -> Self {
         Self::default()
@@ -63,8 +64,8 @@ impl Component for Nav {
         }));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
-        let items = self.items().render(cx);
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+        let items = self.items().render(cx).await;
         if items.is_empty() {
             return Ok(html! {});
         }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/nav/item.rs b/extensions/pagetop-bootsier/src/theme/bs/nav/item.rs
index 81a00d36..80078594 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/nav/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/nav/item.rs
@@ -65,6 +65,7 @@ pub struct Item {
     item_kind: ItemKind,
 }
 
+#[async_trait]
 impl Component for Item {
     fn new() -> Self {
         Self::default()
@@ -78,7 +79,7 @@ impl Component for Item {
         self.alter_prop(PropsOp::prepend_classes(self.item_kind().as_str()));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         Ok(match self.item_kind() {
             ItemKind::Void => html! {},
 
@@ -133,13 +134,13 @@ impl Component for Item {
 
             ItemKind::Html(html) => html! {
                 li (self.props()) {
-                    (html.render(cx))
+                    (html.render(cx).await)
                 }
             },
 
             ItemKind::Dropdown(menu) => {
                 if let Some(dd) = menu.get() {
-                    let items = dd.items().render(cx);
+                    let items = dd.items().render(cx).await;
                     if items.is_empty() {
                         return Ok(html! {});
                     }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/navbar/brand.rs b/extensions/pagetop-bootsier/src/theme/bs/navbar/brand.rs
index 96e34934..8b2b434c 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/navbar/brand.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/navbar/brand.rs
@@ -25,13 +25,14 @@ pub struct Brand {
     route: Option<FnPathByContext>,
 }
 
+#[async_trait]
 impl Component for Brand {
     fn new() -> Self {
         Self::default()
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
-        let image = self.image().render(cx);
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+        let image = self.image().render(cx).await;
         let title = self.title().using(cx);
         if title.is_empty() && image.is_empty() {
             return Ok(html! {});
diff --git a/extensions/pagetop-bootsier/src/theme/bs/navbar/component.rs b/extensions/pagetop-bootsier/src/theme/bs/navbar/component.rs
index 25f9ee60..d6de4de1 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/navbar/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/navbar/component.rs
@@ -149,6 +149,7 @@ pub struct Navbar {
     items: Children,
 }
 
+#[async_trait]
 impl Component for Navbar {
     fn new() -> Self {
         Self::default()
@@ -171,7 +172,7 @@ impl Component for Navbar {
         }));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         // Botón de despliegue (colapso u offcanvas) para la barra.
         fn button(cx: &mut Context, data_bs_toggle: &str, id_content: &str) -> Markup {
             let id_content_target = util::join!("#", id_content);
@@ -196,7 +197,7 @@ impl Component for Navbar {
         }
 
         // Si no hay contenidos, no tiene sentido mostrar una barra vacía.
-        let items = self.items().render(cx);
+        let items = self.items().render(cx).await;
         if items.is_empty() {
             return Ok(html! {});
         }
@@ -225,7 +226,7 @@ impl Component for Navbar {
 
                         // Barra con marca a la izquierda, siempre visible.
                         bs::navbar::Layout::SimpleBrandLeft(brand) => {
-                            (brand.render(cx))
+                            (brand.render(cx).await)
                             (items)
                         },
 
@@ -233,7 +234,7 @@ impl Component for Navbar {
                         bs::navbar::Layout::BrandLeft(brand) => {
                             @let id_content = util::join!(id, "-content");
 
-                            (brand.render(cx))
+                            (brand.render(cx).await)
                             (button(cx, TOGGLE_COLLAPSE, &id_content))
                             div id=(&id_content) class="collapse navbar-collapse" {
                                 (items)
@@ -245,7 +246,7 @@ impl Component for Navbar {
                             @let id_content = util::join!(id, "-content");
 
                             (button(cx, TOGGLE_COLLAPSE, &id_content))
-                            (brand.render(cx))
+                            (brand.render(cx).await)
                             div id=(&id_content) class="collapse navbar-collapse" {
                                 (items)
                             }
@@ -257,7 +258,7 @@ impl Component for Navbar {
 
                             (button(cx, TOGGLE_OFFCANVAS, &id_content))
                             @if let Some(oc) = offcanvas.get() {
-                                (oc.render_offcanvas(cx, Some(self.items())))
+                                (oc.render_offcanvas(cx, Some(self.items())).await)
                             }
                         },
 
@@ -265,10 +266,10 @@ impl Component for Navbar {
                         bs::navbar::Layout::OffcanvasBrandLeft(brand, offcanvas) => {
                             @let id_content = offcanvas.id().unwrap_or_default();
 
-                            (brand.render(cx))
+                            (brand.render(cx).await)
                             (button(cx, TOGGLE_OFFCANVAS, &id_content))
                             @if let Some(oc) = offcanvas.get() {
-                                (oc.render_offcanvas(cx, Some(self.items())))
+                                (oc.render_offcanvas(cx, Some(self.items())).await)
                             }
                         },
 
@@ -277,9 +278,9 @@ impl Component for Navbar {
                             @let id_content = offcanvas.id().unwrap_or_default();
 
                             (button(cx, TOGGLE_OFFCANVAS, &id_content))
-                            (brand.render(cx))
+                            (brand.render(cx).await)
                             @if let Some(oc) = offcanvas.get() {
-                                (oc.render_offcanvas(cx, Some(self.items())))
+                                (oc.render_offcanvas(cx, Some(self.items())).await)
                             }
                         },
                     }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/navbar/item.rs b/extensions/pagetop-bootsier/src/theme/bs/navbar/item.rs
index a4b1a2c6..27e785aa 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/navbar/item.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/navbar/item.rs
@@ -26,6 +26,7 @@ pub enum Item {
     Text(L10n),
 }
 
+#[async_trait]
 impl Component for Item {
     fn new() -> Self {
         Self::default()
@@ -42,19 +43,19 @@ impl Component for Item {
 
     fn setup(&mut self, _cx: &Context) {
         if let Self::Nav(nav) = self {
-            if let Some(mut nav) = nav.get() {
+            if let Some(nav) = nav.get_mut() {
                 nav.alter_prop(PropsOp::prepend_classes("navbar-nav"));
             }
         }
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
         Ok(match self {
             Self::Void => html! {},
-            Self::Brand(brand) => html! { (brand.render(cx)) },
+            Self::Brand(brand) => html! { (brand.render(cx).await) },
             Self::Nav(nav) => {
                 if let Some(nav) = nav.get() {
-                    let items = nav.items().render(cx);
+                    let items = nav.items().render(cx).await;
                     if items.is_empty() {
                         return Ok(html! {});
                     }
diff --git a/extensions/pagetop-bootsier/src/theme/bs/offcanvas/component.rs b/extensions/pagetop-bootsier/src/theme/bs/offcanvas/component.rs
index effd3069..d1931510 100644
--- a/extensions/pagetop-bootsier/src/theme/bs/offcanvas/component.rs
+++ b/extensions/pagetop-bootsier/src/theme/bs/offcanvas/component.rs
@@ -61,6 +61,7 @@ pub struct Offcanvas {
     children: Children,
 }
 
+#[async_trait]
 impl Component for Offcanvas {
     fn new() -> Self {
         Self::default()
@@ -84,8 +85,8 @@ impl Component for Offcanvas {
         }));
     }
 
-    fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
-        Ok(self.render_offcanvas(cx, None))
+    async fn prepare(&self, cx: &mut Context) -> Result<Markup, ComponentError> {
+        Ok(self.render_offcanvas(cx, None).await)
     }
 }
 
@@ -167,9 +168,17 @@ impl Offcanvas {
 
     // **< Offcanvas HELPERS >**********************************************************************
 
-    pub(crate) fn render_offcanvas(&self, cx: &mut Context, extra: Option<&Children>) -> Markup {
-        let body = self.children().render(cx);
-        let body_extra = extra.map(|c| c.render(cx)).unwrap_or_else(|| html! {});
+    pub(crate) async fn render_offcanvas(
+        &self,
+        cx: &mut Context,
+        extra: Option<&Children>,
+    ) -> Markup {
+        let body = self.children().render(cx).await;
+        let body_extra = if let Some(c) = extra {
+            c.render(cx).await
+        } else {
+            html! {}
+        };
         if body.is_empty() && body_extra.is_empty() {
             return html! {};
         }
diff --git a/extensions/pagetop-htmx/README.md b/extensions/pagetop-htmx/README.md
index 1bf1c623..5d7cf15f 100644
--- a/extensions/pagetop-htmx/README.md
+++ b/extensions/pagetop-htmx/README.md
@@ -34,6 +34,7 @@ use pagetop::prelude::*;
 
 struct MyApp;
 
+#[async_trait]
 impl Extension for MyApp {
     fn dependencies(&self) -> Vec<ExtensionRef> {
         vec![
@@ -59,7 +60,7 @@ async fn homepage(request: HttpRequest) -> Result<Markup, ErrorPage> {
             }
             div #result {}
         }))
-        .render()
+        .render().await
 }
 ```
 
diff --git a/extensions/pagetop-htmx/src/hx.rs b/extensions/pagetop-htmx/src/hx.rs
index f1f1f666..744965e4 100644
--- a/extensions/pagetop-htmx/src/hx.rs
+++ b/extensions/pagetop-htmx/src/hx.rs
@@ -332,7 +332,7 @@ pub const DISABLE: &str = "hx-disable";
 
 /// Genera `hx-on:{event}` para escuchar eventos nativos del DOM en línea.
 ///
-/// Es la alternativa de HTMX a los manejadores `on*` de HTML (`onclick`, `onmouseenter`, ...). La
+/// Es la alternativa de HTMX a los *handlers* `on*` de HTML (`onclick`, `onmouseenter`, ...). La
 /// diferencia clave está en cómo los trata el navegador bajo una política CSP (*Content Security
 /// Policy*): los atributos `on*` son JavaScript en línea y quedan bloqueados si la CSP no incluye
 /// `'unsafe-inline'`; en cambio, `hx-on:*` es un atributo de datos que HTMX lee e interpreta desde
diff --git a/extensions/pagetop-htmx/src/lib.rs b/extensions/pagetop-htmx/src/lib.rs
index e65f310c..d3c0c782 100644
--- a/extensions/pagetop-htmx/src/lib.rs
+++ b/extensions/pagetop-htmx/src/lib.rs
@@ -35,6 +35,7 @@ use pagetop::prelude::*;
 
 struct MyApp;
 
+#[async_trait]
 impl Extension for MyApp {
     fn dependencies(&self) -> Vec<ExtensionRef> {
         vec![
@@ -60,7 +61,7 @@ async fn homepage(request: HttpRequest) -> Result<Markup, ErrorPage> {
             }
             div #result {}
         }))
-        .render()
+        .render().await
 }
 ```
 */
@@ -91,6 +92,7 @@ include_locales!(LOCALES_HTMX);
 ///
 /// struct MyApp;
 ///
+/// #[async_trait]
 /// impl Extension for MyApp {
 ///     fn dependencies(&self) -> Vec<ExtensionRef> {
 ///         vec![
@@ -103,6 +105,7 @@ include_locales!(LOCALES_HTMX);
 /// ```
 pub struct Htmx;
 
+#[async_trait]
 impl Extension for Htmx {
     fn name(&self) -> L10n {
         L10n::t("extension_name", &LOCALES_HTMX)
diff --git a/extensions/pagetop-htmx/src/request.rs b/extensions/pagetop-htmx/src/request.rs
index 32b68f86..55dee38f 100644
--- a/extensions/pagetop-htmx/src/request.rs
+++ b/extensions/pagetop-htmx/src/request.rs
@@ -29,7 +29,7 @@ use pagetop::prelude::*;
 ///             .with_child(Html::with(|_| html! {
 ///                 ul { li { "Item 1" } li { "Item 2" } }
 ///             }))
-///             .render()
+///             .render().await
 ///             .into_response()
 ///     }
 /// }