diff --git a/showbits-thermal-printer/src/documents/calendar/mod.rs b/showbits-thermal-printer/src/documents/calendar/mod.rs
index 64a425b..e22477a 100644
--- a/showbits-thermal-printer/src/documents/calendar/mod.rs
+++ b/showbits-thermal-printer/src/documents/calendar/mod.rs
@@ -2,7 +2,7 @@ use axum::{Form, extract::State};
 use jiff::Zoned;
 use serde::{Deserialize, Serialize};
 
-use crate::server::Server;
+use crate::server::{Server, somehow};
 
 #[derive(Serialize)]
 struct Data {
@@ -18,7 +18,7 @@ pub struct FormData {
     pub feed: Option<bool>,
 }
 
-pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
+pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow::Result<()> {
     let date = Zoned::now().date();
 
     let data = Data {
@@ -31,5 +31,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
         .with_json("/data.json", &data)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/documents/cells/mod.rs b/showbits-thermal-printer/src/documents/cells/mod.rs
index d0e84ed..2dad986 100644
--- a/showbits-thermal-printer/src/documents/cells/mod.rs
+++ b/showbits-thermal-printer/src/documents/cells/mod.rs
@@ -146,6 +146,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow:
         .with_file("/image.png", bytes)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
-    Ok(())
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/documents/chat/mod.rs b/showbits-thermal-printer/src/documents/chat/mod.rs
index 0bed793..d48de69 100644
--- a/showbits-thermal-printer/src/documents/chat/mod.rs
+++ b/showbits-thermal-printer/src/documents/chat/mod.rs
@@ -1,7 +1,7 @@
 use axum::{Form, extract::State};
 use serde::{Deserialize, Serialize};
 
-use crate::server::Server;
+use crate::server::{Server, somehow};
 
 #[derive(Serialize)]
 struct Data {
@@ -17,7 +17,7 @@ pub struct FormData {
     pub feed: Option<bool>,
 }
 
-pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
+pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow::Result<()> {
     let data = Data {
         username: form.username,
         content: form.content,
@@ -28,5 +28,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
         .with_json("/data.json", &data)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/documents/egg/mod.rs b/showbits-thermal-printer/src/documents/egg/mod.rs
index 68f1bc7..be8c094 100644
--- a/showbits-thermal-printer/src/documents/egg/mod.rs
+++ b/showbits-thermal-printer/src/documents/egg/mod.rs
@@ -1,7 +1,7 @@
 use axum::{Form, extract::State};
 use serde::{Deserialize, Serialize};
 
-use crate::server::Server;
+use crate::server::{Server, somehow};
 
 #[derive(Serialize)]
 struct Data {
@@ -21,7 +21,7 @@ pub struct FormData {
     pub feed: Option<bool>,
 }
 
-pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
+pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow::Result<()> {
     let seed = form.seed.unwrap_or_else(rand::random);
 
     let data = Data {
@@ -54,5 +54,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
         typst.add_file(format!("/egg_bad/pattern_{i:02}.png"), *pattern);
     }
 
-    server.print_typst(typst).await;
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/documents/image/mod.rs b/showbits-thermal-printer/src/documents/image/mod.rs
index 6c4b56d..db1bc44 100644
--- a/showbits-thermal-printer/src/documents/image/mod.rs
+++ b/showbits-thermal-printer/src/documents/image/mod.rs
@@ -76,6 +76,6 @@ pub async fn post(server: State<Server>, mut multipart: Multipart) -> somehow::R
         .with_file("/image.png", bytes)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
+    server.print_typst(typst).await?;
     Ok(().into_response())
 }
diff --git a/showbits-thermal-printer/src/documents/text/mod.rs b/showbits-thermal-printer/src/documents/text/mod.rs
index c59ba79..e3b33a6 100644
--- a/showbits-thermal-printer/src/documents/text/mod.rs
+++ b/showbits-thermal-printer/src/documents/text/mod.rs
@@ -1,7 +1,7 @@
 use axum::{Form, extract::State};
 use serde::{Deserialize, Serialize};
 
-use crate::server::Server;
+use crate::server::{Server, somehow};
 
 #[derive(Serialize)]
 struct Data {
@@ -17,7 +17,7 @@ pub struct FormData {
     pub feed: Option<bool>,
 }
 
-pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
+pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow::Result<()> {
     let data = Data {
         text: form.text,
         force_wrap: form.force_wrap.unwrap_or(false),
@@ -28,5 +28,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) {
         .with_json("/data.json", &data)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/documents/tictactoe/mod.rs b/showbits-thermal-printer/src/documents/tictactoe/mod.rs
index 83db6f4..cc4e2af 100644
--- a/showbits-thermal-printer/src/documents/tictactoe/mod.rs
+++ b/showbits-thermal-printer/src/documents/tictactoe/mod.rs
@@ -22,6 +22,5 @@ pub async fn post(server: State<Server>, Form(form): Form<FormData>) -> somehow:
         .with_json("/data.json", &data)
         .with_main_file(include_str!("main.typ"));
 
-    server.print_typst(typst).await;
-    Ok(())
+    server.print_typst(typst).await
 }
diff --git a/showbits-thermal-printer/src/drawer.rs b/showbits-thermal-printer/src/drawer.rs
index 46e9c64..5d3599c 100644
--- a/showbits-thermal-printer/src/drawer.rs
+++ b/showbits-thermal-printer/src/drawer.rs
@@ -1,11 +1,11 @@
 use showbits_typst::Typst;
-use tokio::sync::mpsc;
+use tokio::sync::{mpsc, oneshot};
 
 use crate::persistent_printer::PersistentPrinter;
 
 pub enum Command {
     Backlog,
-    Typst(Typst),
+    Typst(Typst, oneshot::Sender<anyhow::Result<()>>),
 }
 
 pub struct Drawer {
@@ -30,11 +30,16 @@ impl Drawer {
             Command::Backlog => {
                 self.printer.print_backlog()?;
             }
-            Command::Typst(typst) => {
-                let image = typst.render()?;
-                self.printer.print_image(&image)?;
+            Command::Typst(typst, tx) => {
+                let _ = tx.send(self.run_cmd_typst(typst));
             }
         }
         Ok(())
     }
+
+    fn run_cmd_typst(&mut self, typst: Typst) -> anyhow::Result<()> {
+        let image = typst.render()?;
+        self.printer.print_image(&image)?;
+        Ok(())
+    }
 }
diff --git a/showbits-thermal-printer/src/server.rs b/showbits-thermal-printer/src/server.rs
index 45203f0..8eb46f7 100644
--- a/showbits-thermal-printer/src/server.rs
+++ b/showbits-thermal-printer/src/server.rs
@@ -8,7 +8,10 @@ use axum::{
     routing::{get, post},
 };
 use showbits_typst::Typst;
-use tokio::{net::TcpListener, sync::mpsc};
+use tokio::{
+    net::TcpListener,
+    sync::{mpsc, oneshot},
+};
 
 use crate::{documents, drawer::Command};
 
@@ -18,8 +21,10 @@ pub struct Server {
 }
 
 impl Server {
-    pub async fn print_typst(&self, typst: Typst) {
-        let _ = self.tx.send(Command::Typst(typst)).await;
+    pub async fn print_typst(&self, typst: Typst) -> somehow::Result<()> {
+        let (tx, rx) = oneshot::channel();
+        let _ = self.tx.send(Command::Typst(typst, tx)).await;
+        rx.await?.map_err(somehow::Error)
     }
 }