diff --git a/crates/account_manager/src/actions.rs b/crates/account_manager/src/actions.rs
index 3872584..65a74fb 100644
--- a/crates/account_manager/src/actions.rs
+++ b/crates/account_manager/src/actions.rs
@@ -13,11 +13,7 @@ pub async fn me(account_id: model::AccountId, db: Database) -> me::Output {
         Ok(t) => t,
         Err(e) => {
             tracing::error!("{}", e);
-            return me::Output {
-                account: None,
-                addresses: None,
-                error: Some(Error::Account),
-            };
+            return Err(Error::Account);
         }
     };
 
@@ -28,10 +24,7 @@ pub async fn me(account_id: model::AccountId, db: Database) -> me::Output {
             tracing::error!("{}", e);
             t.rollback().await.ok();
 
-            return me::Output {
-                error: Some(Error::Account),
-                ..Default::default()
-            };
+            return Err(Error::Account);
         }
     };
     let res = AccountAddresses { account_id }.run(&mut t).await;
@@ -41,19 +34,12 @@ pub async fn me(account_id: model::AccountId, db: Database) -> me::Output {
             tracing::error!("{}", e);
             t.rollback().await.ok();
 
-            return me::Output {
-                error: Some(Error::Addresses),
-                ..Default::default()
-            };
+            return Err(Error::Addresses);
         }
     };
     t.commit().await.ok();
 
-    me::Output {
-        account: Some(account),
-        addresses: Some(addresses),
-        ..Default::default()
-    }
+    Ok(me::Details { account, addresses })
 }
 
 pub async fn create_account(
diff --git a/crates/account_manager/src/rpc.rs b/crates/account_manager/src/rpc.rs
index 5d0e355..ed72def 100644
--- a/crates/account_manager/src/rpc.rs
+++ b/crates/account_manager/src/rpc.rs
@@ -49,15 +49,9 @@ impl Accounts for AccountsServer {
         match res {
             Ok(account) => {
                 self.mqtt_client.emit_account_created(&account).await;
-                register::Output {
-                    account: Some(account),
-                    error: None,
-                }
+                Ok(register::Details { account })
             }
-            Err(_e) => register::Output {
-                account: None,
-                error: Some(Error::Account),
-            },
+            Err(_e) => Err(Error::Account),
         }
     }
 }
diff --git a/crates/api/src/main.rs b/crates/api/src/main.rs
index 2f255cd..68823bb 100644
--- a/crates/api/src/main.rs
+++ b/crates/api/src/main.rs
@@ -161,6 +161,7 @@ async fn create_account(opts: CreateAccountOpts) -> Result<()> {
             },
         )
         .await
+        .unwrap()
         .unwrap();
     Ok(())
 }
@@ -214,7 +215,7 @@ async fn reindex(opts: ReIndexOpts) -> Result<()> {
     tracing::info!("{:?}", products);
 
     for product in products {
-        if let Ok(res) = search
+        if let Ok(Err(e)) = search
             .create_index(
                 tarpc::context::current(),
                 channels::search::create_index::Input::new(
@@ -232,10 +233,8 @@ async fn reindex(opts: ReIndexOpts) -> Result<()> {
             )
             .await
         {
-            if let Some(error) = res.error {
-                tracing::error!("{}", error);
-                return Ok(());
-            }
+            tracing::error!("{}", e);
+            return Ok(());
         }
     }
     tracing::info!("Success!");
diff --git a/crates/api/src/routes/public/api_v1/restricted.rs b/crates/api/src/routes/public/api_v1/restricted.rs
index 5b0603c..dfe9c58 100644
--- a/crates/api/src/routes/public/api_v1/restricted.rs
+++ b/crates/api/src/routes/public/api_v1/restricted.rs
@@ -115,19 +115,20 @@ async fn update_cart_item(
         )
         .await
     {
-        Ok(res) => res.item,
+        Ok(Ok(res)) => res.item,
+        Ok(Err(e)) => {
+            tracing::error!("{}", e);
+            return Err(routes::Error::CriticalFailure);
+        }
         Err(e) => {
             tracing::error!("{}", e);
             return Err(routes::Error::CriticalFailure);
         }
     };
 
-    match item {
-        Some(item) => Ok(Json(api::UpdateItemOutput {
-            shopping_cart_item: item.into(),
-        })),
-        None => Err(routes::Error::Public(super::Error::ModifyItem.into())),
-    }
+    Ok(Json(api::UpdateItemOutput {
+        shopping_cart_item: item.into(),
+    }))
 }
 
 #[put("/shopping-cart")]
@@ -158,7 +159,7 @@ async fn update_cart(
             .collect()
     };
 
-    use channels::carts::modify_cart::{Input, Output};
+    use channels::carts::modify_cart::{Details, Input};
     let res = {
         match cart
             .modify_cart(
@@ -172,17 +173,11 @@ async fn update_cart(
             )
             .await
         {
-            Ok(Output {
-                cart: Some(cart), ..
-            }) => cart,
-            Ok(Output { error: Some(e), .. }) => {
+            Ok(Ok(Details { cart })) => cart,
+            Ok(Err(e)) => {
                 tracing::error!("{}", e);
                 return Err(routes::Error::Public(super::Error::ModifyItem.into()));
             }
-            Ok(out) => {
-                tracing::error!("invalid output {:?}", out);
-                return Err(routes::Error::Public(super::Error::ModifyItem.into()));
-            }
             Err(e) => {
                 tracing::error!("{}", e);
                 return Err(routes::Error::Public(super::Error::ModifyItem.into()));
@@ -208,7 +203,7 @@ async fn delete_cart_item(
     let token = credentials.require_user(tm.into_inner()).await?;
 
     let sc = {
-        use channels::carts::active_shopping_cart::{Input, Output};
+        use channels::carts::active_shopping_cart::{Details, Input};
         match cart
             .active_shopping_cart(
                 tarpc::context::current(),
@@ -218,17 +213,11 @@ async fn delete_cart_item(
             )
             .await
         {
-            Ok(Output {
-                cart: Some(cart), ..
-            }) => cart,
-            Ok(Output { error: Some(e), .. }) => {
+            Ok(Ok(Details { cart })) => cart,
+            Ok(Err(e)) => {
                 tracing::error!("{}", e);
                 return Err(routes::Error::Public(super::Error::ModifyItem.into()));
             }
-            Ok(out) => {
-                tracing::error!("invalid output {:?}", out);
-                return Err(routes::Error::Public(super::Error::ModifyItem.into()));
-            }
             Err(e) => {
                 tracing::error!("{e}");
                 return Ok(
@@ -250,7 +239,11 @@ async fn delete_cart_item(
             )
             .await
         {
-            Ok(_) => Ok(HttpResponse::Ok().json(api::DeleteItemOutput { success: true })),
+            Ok(Ok(_)) => Ok(HttpResponse::Ok().json(api::DeleteItemOutput { success: true })),
+            Ok(Err(e)) => {
+                tracing::error!("{e:?}");
+                Err(routes::Error::Public(PublicError::DatabaseConnection))
+            }
             Err(e) => {
                 tracing::error!("{e:?}");
                 Err(routes::Error::Public(PublicError::DatabaseConnection))
@@ -277,7 +270,11 @@ pub(crate) async fn me(
         )
         .await
     {
-        Ok(me) => Ok(Json((me.account.unwrap(), me.addresses.unwrap()).into())),
+        Ok(Ok(me)) => Ok(Json((me.account, me.addresses).into())),
+        Ok(Err(e)) => {
+            tracing::error!("{}", e);
+            Err(routes::Error::CriticalFailure)
+        }
         Err(e) => {
             tracing::error!("{}", e);
             Err(routes::Error::CriticalFailure)
diff --git a/crates/api/src/routes/public/api_v1/unrestricted.rs b/crates/api/src/routes/public/api_v1/unrestricted.rs
index a1c3a82..350d8c2 100644
--- a/crates/api/src/routes/public/api_v1/unrestricted.rs
+++ b/crates/api/src/routes/public/api_v1/unrestricted.rs
@@ -33,9 +33,7 @@ async fn search(
         )
         .await
     {
-        Ok(channels::search::search::Output {
-            found: Some(res), ..
-        }) => res
+        Ok(Ok(channels::search::search::Details { found })) => found
             .into_iter()
             .filter_map(|s| {
                 s.parse::<model::RecordId>()
diff --git a/crates/cart_manager/src/actions.rs b/crates/cart_manager/src/actions.rs
index 9acfb33..5fd9fea 100644
--- a/crates/cart_manager/src/actions.rs
+++ b/crates/cart_manager/src/actions.rs
@@ -1,7 +1,7 @@
 use std::collections::HashSet;
 
-use channels::carts::modify_cart::CartDetails;
-use channels::carts::{self, Error};
+use channels::carts::{self, active_shopping_cart, modify_item, Error};
+use model::ShoppingCartItem;
 
 use crate::db::*;
 
@@ -11,7 +11,7 @@ macro_rules! begin_t {
             Ok(t) => t,
             Err(e) => {
                 tracing::error!("{}", e);
-                return Output::error(Error::InternalServerError);
+                return Err(Error::InternalServerError);
             }
         }
     };
@@ -21,7 +21,7 @@ macro_rules! end_t {
     ($t: ident, $res: expr) => {
         if let Err(e) = $t.commit().await {
             tracing::error!("{}", e);
-            Output::error(Error::InternalServerError)
+            Err(Error::InternalServerError)
         } else {
             $res
         }
@@ -42,7 +42,7 @@ pub async fn modify_item(
     if let Err(e) = dbm.run(&mut t).await {
         tracing::error!("{}", e);
         t.rollback().await.ok();
-        return Output::error(Error::InternalServerError);
+        return Err(Error::InternalServerError);
     }
 
     let dbm = AccountShoppingCarts {
@@ -53,11 +53,11 @@ pub async fn modify_item(
         Ok(carts) => carts,
         Err(e) => {
             tracing::error!("{}", e);
-            return Output::error(Error::NoCarts);
+            return Err(Error::NoCarts);
         }
     };
     let cart = if carts.is_empty() {
-        return Output::error(Error::NoCarts);
+        return Err(Error::NoCarts);
     } else {
         carts.remove(0)
     };
@@ -69,7 +69,7 @@ pub async fn modify_item(
         Ok(res) => res,
         Err(e) => {
             tracing::error!("{}", e);
-            return Output::error(Error::NoActiveCart);
+            return Err(Error::NoActiveCart);
         }
     };
 
@@ -77,12 +77,12 @@ pub async fn modify_item(
         Some(item) if **item.quantity == 0 => {
             let dbm = DeleteShoppingCartItem { id: item.id };
             match dbm.run(&mut t).await {
-                Ok(Some(res)) => Output::item(res),
-                Ok(None) => Output::default(),
+                Ok(Some(res)) => modify_item::Details { item: res },
+                Ok(None) => return Err(Error::DeleteItem(item.id)),
                 Err(e) => {
                     tracing::error!("{}", e);
                     t.rollback().await.ok();
-                    return Output::error(Error::DeleteItem(item.id));
+                    return Err(Error::DeleteItem(item.id));
                 }
             }
         }
@@ -95,11 +95,11 @@ pub async fn modify_item(
                 quantity_unit: msg.quantity_unit,
             };
             match dbm.run(&mut t).await {
-                Ok(res) => Output::item(res),
+                Ok(res) => modify_item::Details { item: res },
                 Err(e) => {
                     tracing::error!("{}", e);
                     t.rollback().await.ok();
-                    return Output::error(Error::ModifyItem(item.id));
+                    return Err(Error::ModifyItem(item.id));
                 }
             }
         }
@@ -111,24 +111,25 @@ pub async fn modify_item(
                 quantity_unit: msg.quantity_unit,
             };
             match dbm.run(&mut t).await {
-                Ok(res) => Output::item(res),
+                Ok(res) => modify_item::Details { item: res },
                 Err(e) => {
                     tracing::error!("{}", e);
                     t.rollback().await.ok();
-                    return Output::error(Error::CreateItem);
+                    return Err(Error::CreateItem);
                 }
             }
         }
     };
 
-    end_t!(t, res)
+    end_t!(t, Ok(res))
 }
 
 pub async fn remove_product(
     msg: carts::remove_product::Input,
     db: Database,
 ) -> carts::remove_product::Output {
-    use carts::remove_product::Output;
+    use carts::remove_product::Details;
+
     let dbm = RemoveCartItem {
         shopping_cart_id: msg.shopping_cart_id,
         shopping_cart_item_id: Some(msg.shopping_cart_item_id),
@@ -137,21 +138,21 @@ pub async fn remove_product(
     let mut t = begin_t!(db);
 
     let res = match dbm.run(&mut t).await {
-        Ok(Some(res)) => Output::item(res),
-        Ok(None) => Output::default(),
+        Ok(Some(res)) => Details { item: res },
+        Ok(None) => return Err(Error::DeleteItem(msg.shopping_cart_item_id)),
         Err(e) => {
             tracing::error!("{}", e);
-            Output::error(Error::DeleteItem(msg.shopping_cart_item_id))
+            return Err(Error::DeleteItem(msg.shopping_cart_item_id));
         }
     };
-    end_t!(t, res)
+    end_t!(t, Ok(res))
 }
 
 pub async fn modify_cart(
     msg: carts::modify_cart::Input,
     db: Database,
 ) -> carts::modify_cart::Output {
-    use carts::modify_cart::Output;
+    use carts::modify_cart::{CartDetails, Details};
 
     tracing::debug!("{:?}", msg);
 
@@ -164,7 +165,7 @@ pub async fn modify_cart(
         Ok(res) => res,
         Err(e) => {
             tracing::error!("{}", e);
-            return Output::error(Error::InternalServerError);
+            return Err(Error::InternalServerError);
         }
     };
     let dbm = UpdateShoppingCart {
@@ -182,7 +183,7 @@ pub async fn modify_cart(
         Ok(res) => res,
         Err(e) => {
             tracing::error!("{}", e);
-            return Output::error(Error::ModifyCart(cart.id));
+            return Err(Error::ModifyCart(cart.id));
         }
     };
 
@@ -201,7 +202,7 @@ pub async fn modify_cart(
         Ok(v) => v,
         Err(e) => {
             tracing::error!("{}", e);
-            return Output::error(Error::LoadItems(cart.id));
+            return Err(Error::LoadItems(cart.id));
         }
     };
 
@@ -218,7 +219,7 @@ pub async fn modify_cart(
             Ok(_) => {}
             Err(e) => {
                 tracing::error!("{}", e);
-                return Output::error(Error::DeleteItem(item.id));
+                return Err(Error::DeleteItem(item.id));
             }
         };
     }
@@ -226,25 +227,19 @@ pub async fn modify_cart(
     let mut out = Vec::with_capacity(msg.items.len());
 
     for item in msg.items {
-        let res = modify_item(item, db.clone()).await;
-        if let carts::modify_item::Output {
-            error: Some(error), ..
-        } = &res
-        {
-            return Output::error(error.clone());
-        }
-        if let Some(item) = res.item {
-            out.push(item);
-        }
+        let res = modify_item(item, db.clone()).await?;
+        out.push(res.item);
     }
 
     end_t!(
         t,
-        Output::cart(CartDetails {
-            cart_id: cart.id,
-            items: out,
-            checkout_notes: cart.checkout_notes.unwrap_or_default(),
-            payment_method: cart.payment_method,
+        Ok(Details {
+            cart: CartDetails {
+                cart_id: cart.id,
+                items: out,
+                checkout_notes: cart.checkout_notes.unwrap_or_default(),
+                payment_method: cart.payment_method,
+            }
         })
     )
 }
@@ -259,7 +254,7 @@ pub async fn active_shopping_cart(
 
     let mut t = begin_t!(db);
 
-    let dbm = crate::db::EnsureActiveShoppingCart {
+    let dbm = EnsureActiveShoppingCart {
         buyer_id: input.buyer_id,
     };
     let cart = match dbm.run(&mut t).await {
@@ -267,9 +262,9 @@ pub async fn active_shopping_cart(
         Err(e) => {
             tracing::error!("{}", e);
             t.rollback().await.ok();
-            return Output::error(Error::NoActiveCart);
+            return Err(Error::NoActiveCart);
         }
     };
 
-    end_t!(t, Output::cart(cart))
+    end_t!(t, Ok(active_shopping_cart::Details { cart }))
 }
diff --git a/crates/channels/src/accounts.rs b/crates/channels/src/accounts.rs
index 5ef43d4..043186c 100644
--- a/crates/channels/src/accounts.rs
+++ b/crates/channels/src/accounts.rs
@@ -81,25 +81,29 @@ pub mod register {
         }
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub account: Option<model::FullAccount>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub account: model::FullAccount,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod me {
+    use crate::accounts::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub account_id: model::AccountId,
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub account: Option<model::FullAccount>,
-        pub addresses: Option<Vec<model::AccountAddress>>,
-        pub error: Option<super::Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub account: model::FullAccount,
+        pub addresses: Vec<model::AccountAddress>,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 impl AsyncClient {
diff --git a/crates/channels/src/carts.rs b/crates/channels/src/carts.rs
index 114c6df..f0f15bb 100644
--- a/crates/channels/src/carts.rs
+++ b/crates/channels/src/carts.rs
@@ -31,27 +31,12 @@ pub mod remove_product {
         pub shopping_cart_item_id: model::ShoppingCartItemId,
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub item: Option<model::ShoppingCartItem>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub item: model::ShoppingCartItem,
     }
 
-    impl Output {
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-
-        pub fn item(item: model::ShoppingCartItem) -> Self {
-            Self {
-                item: Some(item),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod modify_item {
@@ -65,27 +50,12 @@ pub mod modify_item {
         pub quantity_unit: model::QuantityUnit,
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub item: Option<model::ShoppingCartItem>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub item: model::ShoppingCartItem,
     }
 
-    impl Output {
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-
-        pub fn item(item: model::ShoppingCartItem) -> Self {
-            Self {
-                item: Some(item),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod modify_cart {
@@ -107,27 +77,12 @@ pub mod modify_cart {
         pub payment_method: model::PaymentMethod,
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub cart: Option<CartDetails>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub cart: CartDetails,
     }
 
-    impl Output {
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-
-        pub fn cart(cart: CartDetails) -> Self {
-            Self {
-                cart: Some(cart),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod active_shopping_cart {
@@ -138,27 +93,12 @@ pub mod active_shopping_cart {
         pub buyer_id: model::AccountId,
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub error: Option<Error>,
-        pub cart: Option<model::ShoppingCart>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub cart: model::ShoppingCart,
     }
 
-    impl Output {
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-
-        pub fn cart(cart: model::ShoppingCart) -> Self {
-            Self {
-                cart: Some(cart),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod rpc {
diff --git a/crates/channels/src/search.rs b/crates/channels/src/search.rs
index bc53971..a310283 100644
--- a/crates/channels/src/search.rs
+++ b/crates/channels/src/search.rs
@@ -37,27 +37,12 @@ pub mod search {
         }
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub found: Option<Vec<String>>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub found: Vec<String>,
     }
 
-    impl Output {
-        pub fn found(found: Vec<String>) -> Self {
-            Self {
-                found: Some(found),
-                ..Default::default()
-            }
-        }
-
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod suggest {
@@ -84,27 +69,12 @@ pub mod suggest {
         }
     }
 
-    #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
-        pub found: Option<Vec<String>>,
-        pub error: Option<Error>,
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub found: Vec<String>,
     }
 
-    impl Output {
-        pub fn found(found: Vec<String>) -> Self {
-            Self {
-                found: Some(found),
-                ..Default::default()
-            }
-        }
-
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod create_index {
@@ -184,26 +154,11 @@ pub mod create_index {
     }
 
     #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub found: Option<()>,
-        pub error: Option<Error>,
     }
 
-    impl Output {
-        pub fn ok() -> Self {
-            Self {
-                found: Some(()),
-                ..Default::default()
-            }
-        }
-
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
-    }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod delete_index {
@@ -234,26 +189,10 @@ pub mod delete_index {
     }
 
     #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub found: Option<()>,
-        pub error: Option<Error>,
-    }
-
-    impl Output {
-        pub fn ok() -> Self {
-            Self {
-                found: Some(()),
-                ..Default::default()
-            }
-        }
-
-        pub fn error(error: Error) -> Self {
-            Self {
-                error: Some(error),
-                ..Default::default()
-            }
-        }
     }
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod rpc {
diff --git a/crates/channels/src/stocks/load.rs b/crates/channels/src/stocks/load.rs
index a2ecddd..f163f13 100644
--- a/crates/channels/src/stocks/load.rs
+++ b/crates/channels/src/stocks/load.rs
@@ -1,27 +1,35 @@
 pub mod detailed_product {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub product_id: ProductId,
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Output2 {
         pub product: model::Product,
         pub stocks: Vec<Stock>,
         pub photos: Vec<Photo>,
     }
+
+    pub type Output = Result<Output2, Error>;
 }
 
 pub mod detailed_products {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {}
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub products: Vec<DetailedProduct>,
     }
+
+    pub type Output = Result<Details, Error>;
 }
diff --git a/crates/channels/src/stocks/mod.rs b/crates/channels/src/stocks/mod.rs
index 94bfbeb..7210c60 100644
--- a/crates/channels/src/stocks/mod.rs
+++ b/crates/channels/src/stocks/mod.rs
@@ -12,6 +12,9 @@ pub use product_variant::*;
 
 pub static CLIENT_NAME: &str = "stocks";
 
+#[derive(Debug, thiserror::Error, serde::Serialize, serde::Deserialize)]
+pub enum Error {}
+
 pub mod rpc {
     use config::SharedAppConfig;
 
diff --git a/crates/channels/src/stocks/product.rs b/crates/channels/src/stocks/product.rs
index 80fab29..c26d3c3 100644
--- a/crates/channels/src/stocks/product.rs
+++ b/crates/channels/src/stocks/product.rs
@@ -1,6 +1,8 @@
 pub mod create_product {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct ProductInput {
         pub name: ProductName,
@@ -25,11 +27,13 @@ pub mod create_product {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product: model::Product,
         pub stocks: Vec<Stock>,
         pub photos: Vec<Photo>,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod update_product {
@@ -51,13 +55,17 @@ pub mod update_product {
 pub mod delete_product {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub product_id: ProductId,
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_id: ProductId,
     }
+
+    pub type Output = Result<Details, Error>;
 }
diff --git a/crates/channels/src/stocks/product_photo.rs b/crates/channels/src/stocks/product_photo.rs
index 24e4871..1313783 100644
--- a/crates/channels/src/stocks/product_photo.rs
+++ b/crates/channels/src/stocks/product_photo.rs
@@ -1,6 +1,8 @@
 pub mod add_product_photo {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub local_path: LocalPath,
@@ -9,18 +11,22 @@ pub mod add_product_photo {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub photo_id: ProductPhotoId,
         pub product_variant_id: ProductVariantId,
         pub local_path: LocalPath,
         pub file_name: FileName,
         pub unique_name: UniqueName,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod delete_product_photo {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub photo_id: ProductPhotoId,
@@ -28,8 +34,10 @@ pub mod delete_product_photo {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub photo_id: ProductPhotoId,
         pub product_variant_id: ProductVariantId,
     }
+
+    pub type Output = Result<Details, Error>;
 }
diff --git a/crates/channels/src/stocks/product_stock.rs b/crates/channels/src/stocks/product_stock.rs
index 7cfcb3d..b3fcb8f 100644
--- a/crates/channels/src/stocks/product_stock.rs
+++ b/crates/channels/src/stocks/product_stock.rs
@@ -1,6 +1,8 @@
 pub mod create_product_stock {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub product_variant_id: ProductVariantId,
@@ -9,14 +11,18 @@ pub mod create_product_stock {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_stock: Stock,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod update_product_stock {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub id: StockId,
@@ -26,7 +32,9 @@ pub mod update_product_stock {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_stock: Stock,
     }
+
+    pub type Output = Result<Details, Error>;
 }
diff --git a/crates/channels/src/stocks/product_variant.rs b/crates/channels/src/stocks/product_variant.rs
index c1abf67..e9a0ff3 100644
--- a/crates/channels/src/stocks/product_variant.rs
+++ b/crates/channels/src/stocks/product_variant.rs
@@ -1,6 +1,8 @@
 pub mod create_product_variant {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub product_id: ProductId,
@@ -11,14 +13,18 @@ pub mod create_product_variant {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_variant: ProductVariant,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod update_product_variant {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub id: ProductVariantId,
@@ -30,14 +36,18 @@ pub mod update_product_variant {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_variant: ProductVariant,
     }
+
+    pub type Output = Result<Details, Error>;
 }
 
 pub mod delete_product_variant {
     use model::v2::*;
 
+    use crate::stocks::Error;
+
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Input {
         pub product_id: ProductId,
@@ -45,8 +55,10 @@ pub mod delete_product_variant {
     }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Output {
+    pub struct Details {
         pub product_id: ProductId,
         pub product_variant_id: ProductVariantId,
     }
+
+    pub type Output = Result<Details, Error>;
 }
diff --git a/crates/model/src/lib.rs b/crates/model/src/lib.rs
index 99e5d30..d6b09d9 100644
--- a/crates/model/src/lib.rs
+++ b/crates/model/src/lib.rs
@@ -900,6 +900,8 @@ impl ProductCategory {
 
 pub mod v2 {
     use derive_more::{Deref, Display, From};
+    #[cfg(feature = "dummy")]
+    use fake::Fake;
     use serde::{Deserialize, Serialize};
 
     pub use crate::{
diff --git a/crates/search_manager/src/actions.rs b/crates/search_manager/src/actions.rs
index 149116c..4c6df4c 100644
--- a/crates/search_manager/src/actions.rs
+++ b/crates/search_manager/src/actions.rs
@@ -14,14 +14,14 @@ pub async fn search(msg: search::Input, ctx: Context, _config: SharedAppConfig)
         } = msg;
         let query = QueryRequest::new(Dest::col_buc(collection, bucket), query).lang(lang.0);
         match l.query(query) {
-            Ok(res) => search::Output::found(res),
+            Ok(res) => Ok(search::Details { found: res }),
             Err(e) => {
                 tracing::error!("{e:?}");
-                search::Output::error(Error::QueryFailed)
+                Err(Error::QueryFailed)
             }
         }
     } else {
-        search::Output::found(vec![])
+        Ok(search::Details { found: vec![] })
     }
 }
 
@@ -38,14 +38,14 @@ pub async fn suggest(
         } = msg;
         let query = SuggestRequest::new(Dest::col_buc(collection, bucket), query).limit(10);
         match l.suggest(query) {
-            Ok(res) => suggest::Output::found(res),
+            Ok(res) => Ok(suggest::Details { found: res }),
             Err(e) => {
                 tracing::error!("{e:?}");
-                suggest::Output::error(Error::QueryFailed)
+                Err(Error::QueryFailed)
             }
         }
     } else {
-        suggest::Output::found(vec![])
+        Ok(suggest::Details { found: vec![] })
     }
 }
 
@@ -62,14 +62,14 @@ pub async fn create_index(
             )
             .lang(msg.lang.0),
         ) {
-            Ok(_) => create_index::Output::ok(),
+            Ok(_) => Ok(create_index::Details { found: Some(()) }),
             Err(e) => {
                 tracing::error!("push {e:?}");
-                create_index::Output::error(Error::CantCreate)
+                Err(Error::CantCreate)
             }
         }
     } else {
-        create_index::Output::ok()
+        Ok(create_index::Details { found: None })
     }
 }
 
@@ -83,14 +83,14 @@ pub async fn delete_index(
             ObjDest::new(Dest::col_buc(msg.collection, msg.bucket), &msg.key),
             &msg.value,
         )) {
-            Ok(_) => delete_index::Output::ok(),
+            Ok(_) => Ok(delete_index::Details { found: Some(()) }),
             Err(e) => {
                 tracing::error!("pop {e:?}");
-                delete_index::Output::error(Error::CantCreate)
+                Err(Error::CantCreate)
             }
         }
     } else {
-        delete_index::Output::ok()
+        Ok(delete_index::Details { found: None })
     }
 }
 
diff --git a/crates/stock_manager/src/actions.rs b/crates/stock_manager/src/actions.rs
deleted file mode 100644
index e69de29..0000000
diff --git a/crates/stock_manager/src/actions/load.rs b/crates/stock_manager/src/actions/load.rs
new file mode 100644
index 0000000..a2494ad
--- /dev/null
+++ b/crates/stock_manager/src/actions/load.rs
@@ -0,0 +1,23 @@
+use channels::stocks::{detailed_product, detailed_products};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+
+pub async fn detailed_product(
+    input: detailed_product::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> detailed_product::Output {
+    todo!()
+}
+
+pub async fn detailed_products(
+    input: detailed_products::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> detailed_products::Output {
+    todo!()
+}
diff --git a/crates/stock_manager/src/actions/mod.rs b/crates/stock_manager/src/actions/mod.rs
new file mode 100644
index 0000000..9a680e1
--- /dev/null
+++ b/crates/stock_manager/src/actions/mod.rs
@@ -0,0 +1,11 @@
+pub mod load;
+pub mod product;
+pub mod product_photo;
+pub mod product_stock;
+pub mod product_variant;
+
+pub use load::*;
+pub use product::*;
+pub use product_photo::*;
+pub use product_stock::*;
+pub use product_variant::*;
diff --git a/crates/stock_manager/src/actions/product.rs b/crates/stock_manager/src/actions/product.rs
new file mode 100644
index 0000000..a250285
--- /dev/null
+++ b/crates/stock_manager/src/actions/product.rs
@@ -0,0 +1,32 @@
+use channels::stocks::{create_product, delete_product, update_product};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+
+pub async fn create_product(
+    input: create_product::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> create_product::Output {
+    todo!()
+}
+
+pub async fn update_product(
+    input: update_product::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> update_product::Output {
+    todo!()
+}
+
+pub async fn delete_product(
+    input: delete_product::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> delete_product::Output {
+    todo!()
+}
diff --git a/crates/stock_manager/src/actions/product_photo.rs b/crates/stock_manager/src/actions/product_photo.rs
new file mode 100644
index 0000000..d689070
--- /dev/null
+++ b/crates/stock_manager/src/actions/product_photo.rs
@@ -0,0 +1,23 @@
+use channels::stocks::{add_product_photo, delete_product_photo};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+
+pub async fn add_product_photo(
+    input: add_product_photo::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> add_product_photo::Output {
+    todo!()
+}
+
+pub async fn delete_product_photo(
+    input: delete_product_photo::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> delete_product_photo::Output {
+    todo!()
+}
diff --git a/crates/stock_manager/src/actions/product_stock.rs b/crates/stock_manager/src/actions/product_stock.rs
new file mode 100644
index 0000000..37cec3e
--- /dev/null
+++ b/crates/stock_manager/src/actions/product_stock.rs
@@ -0,0 +1,23 @@
+use channels::stocks::{create_product_stock, update_product_stock};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+
+pub async fn create_product_stock(
+    input: create_product_stock::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> create_product_stock::Output {
+    todo!()
+}
+
+pub async fn update_product_stock(
+    input: update_product_stock::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> update_product_stock::Output {
+    todo!()
+}
diff --git a/crates/stock_manager/src/actions/product_variant.rs b/crates/stock_manager/src/actions/product_variant.rs
new file mode 100644
index 0000000..f0e7f19
--- /dev/null
+++ b/crates/stock_manager/src/actions/product_variant.rs
@@ -0,0 +1,32 @@
+use channels::stocks::{create_product_variant, delete_product_variant, update_product_variant};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+
+pub async fn create_product_variant(
+    input: create_product_variant::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> create_product_variant::Output {
+    todo!()
+}
+
+pub async fn update_product_variant(
+    input: update_product_variant::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> update_product_variant::Output {
+    todo!()
+}
+
+pub async fn delete_product_variant(
+    input: delete_product_variant::Input,
+    db: Database,
+    mqtt: AsyncClient,
+    config: SharedAppConfig,
+) -> delete_product_variant::Output {
+    todo!()
+}
diff --git a/crates/stock_manager/src/db/mod.rs b/crates/stock_manager/src/db/mod.rs
index 344faa0..0c2983c 100644
--- a/crates/stock_manager/src/db/mod.rs
+++ b/crates/stock_manager/src/db/mod.rs
@@ -1,4 +1,6 @@
 use config::SharedAppConfig;
+use sqlx_core::pool::Pool;
+use sqlx_core::postgres::Postgres;
 
 mod photos;
 mod product_photos;
@@ -24,5 +26,7 @@ impl Database {
         }
     }
 
-    pub fn pool(&self) {}
+    pub fn pool(&self) -> Pool<Postgres> {
+        self.pool.clone()
+    }
 }
diff --git a/crates/stock_manager/src/main.rs b/crates/stock_manager/src/main.rs
index 4480adb..edc341c 100644
--- a/crates/stock_manager/src/main.rs
+++ b/crates/stock_manager/src/main.rs
@@ -1,8 +1,23 @@
+use config::UpdateConfig;
+
 mod actions;
 mod context;
 mod db;
 mod mqtt;
 mod rpc;
 
+pub struct Opts {}
+
+impl UpdateConfig for Opts {}
+
 #[tokio::main]
-async fn main() {}
+async fn main() {
+    let opts = Opts {};
+
+    let config = config::default_load(&opts);
+
+    let db = db::Database::build(config.clone()).await;
+
+    let mqtt_client = mqtt::start(config.clone(), db.clone()).await;
+    rpc::start(config, db, mqtt_client).await;
+}
diff --git a/crates/stock_manager/src/mqtt.rs b/crates/stock_manager/src/mqtt.rs
index e69de29..e6cdbae 100644
--- a/crates/stock_manager/src/mqtt.rs
+++ b/crates/stock_manager/src/mqtt.rs
@@ -0,0 +1,30 @@
+use config::SharedAppConfig;
+use rumqttc::{Event, Incoming};
+
+use crate::db::Database;
+
+pub async fn start(config: SharedAppConfig, _db: Database) -> channels::AsyncClient {
+    let (client, mut event_loop) = channels::stocks::mqtt::create_client(config);
+
+    let spawn_client = client.clone();
+    tokio::spawn(async move {
+        let _client = spawn_client.clone();
+        loop {
+            let notification = event_loop.poll().await;
+
+            match notification {
+                Ok(Event::Incoming(Incoming::Publish(publish))) => match publish.topic.as_str() {
+                    _ => {}
+                },
+                Ok(Event::Incoming(_incoming)) => {}
+                Ok(Event::Outgoing(_outgoing)) => {}
+                Err(e) => {
+                    tracing::error!("{}", e);
+                }
+            }
+        }
+        // tracing::info!("Mqtt channel closed");
+    });
+
+    client
+}
diff --git a/crates/stock_manager/src/rpc.rs b/crates/stock_manager/src/rpc.rs
index e69de29..6142076 100644
--- a/crates/stock_manager/src/rpc.rs
+++ b/crates/stock_manager/src/rpc.rs
@@ -0,0 +1,135 @@
+use channels::stocks::rpc::Stocks;
+use channels::AsyncClient;
+use config::SharedAppConfig;
+
+use crate::db::Database;
+use crate::rpc::rpc::StocksServer;
+
+pub mod rpc {
+    use channels::stocks::rpc::Stocks;
+    use channels::stocks::*;
+    use config::SharedAppConfig;
+    use tarpc::context;
+
+    use crate::actions;
+
+    #[derive(Clone)]
+    pub struct StocksServer {
+        pub db: crate::db::Database,
+        pub mqtt_client: channels::AsyncClient,
+        pub config: SharedAppConfig,
+    }
+
+    #[tarpc::server]
+    impl Stocks for StocksServer {
+        async fn create_product(
+            self,
+            _: context::Context,
+            input: create_product::Input,
+        ) -> create_product::Output {
+            actions::create_product(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn update_product(
+            self,
+            _: context::Context,
+            input: update_product::Input,
+        ) -> update_product::Output {
+            actions::update_product(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn delete_product(
+            self,
+            _: context::Context,
+            input: delete_product::Input,
+        ) -> delete_product::Output {
+            actions::delete_product(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn create_product_variant(
+            self,
+            _: context::Context,
+            input: create_product_variant::Input,
+        ) -> create_product_variant::Output {
+            actions::create_product_variant(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn update_product_variant(
+            self,
+            _: context::Context,
+            input: update_product_variant::Input,
+        ) -> update_product_variant::Output {
+            actions::update_product_variant(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn delete_product_variant(
+            self,
+            _: context::Context,
+            input: delete_product_variant::Input,
+        ) -> delete_product_variant::Output {
+            actions::delete_product_variant(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn add_product_photo(
+            self,
+            _: context::Context,
+            input: add_product_photo::Input,
+        ) -> add_product_photo::Output {
+            actions::add_product_photo(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn delete_product_photo(
+            self,
+            _: context::Context,
+            input: delete_product_photo::Input,
+        ) -> delete_product_photo::Output {
+            actions::delete_product_photo(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn create_product_stock(
+            self,
+            _: context::Context,
+            input: create_product_stock::Input,
+        ) -> create_product_stock::Output {
+            actions::create_product_stock(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn update_product_stock(
+            self,
+            _: context::Context,
+            input: update_product_stock::Input,
+        ) -> update_product_stock::Output {
+            actions::update_product_stock(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn detailed_product(
+            self,
+            _: context::Context,
+            input: detailed_product::Input,
+        ) -> detailed_product::Output {
+            actions::detailed_product(input, self.db, self.mqtt_client, self.config).await
+        }
+
+        async fn detailed_products(
+            self,
+            _: context::Context,
+            input: detailed_products::Input,
+        ) -> detailed_products::Output {
+            actions::detailed_products(input, self.db, self.mqtt_client, self.config).await
+        }
+    }
+}
+
+pub async fn start(config: SharedAppConfig, db: Database, mqtt_client: AsyncClient) {
+    let port = { config.lock().stocks_manager().rpc_port };
+
+    channels::rpc::start("stocks", port, || {
+        StocksServer {
+            db: db.clone(),
+            config: config.clone(),
+            mqtt_client: mqtt_client.clone(),
+        }
+        .serve()
+    })
+    .await;
+}