diff --git a/core/src/requests/tabs.rs b/core/src/requests/tabs.rs
index a7a91cc..7bdd5ff 100644
--- a/core/src/requests/tabs.rs
+++ b/core/src/requests/tabs.rs
@@ -109,7 +109,8 @@ pub mod delete {
         pub item: entity::Id,
     }
 
-    pub type Ok = True;
+    #[data(copy)]
+    pub struct Ok(pub True);
 
     #[data(error)]
     pub enum Err {
diff --git a/core/src/requests/uploads.rs b/core/src/requests/uploads.rs
index fe482e3..cd5ebb2 100644
--- a/core/src/requests/uploads.rs
+++ b/core/src/requests/uploads.rs
@@ -86,7 +86,8 @@ pub mod abort {
         pub upload: file::Id,
     }
 
-    pub type Ok = True;
+    #[data(copy)]
+    pub struct Ok(pub True);
 
     #[data(error)]
     pub enum Err {
diff --git a/core/src/types/entity.rs b/core/src/types/entity.rs
index a1531d9..2dfecce 100644
--- a/core/src/types/entity.rs
+++ b/core/src/types/entity.rs
@@ -520,6 +520,7 @@ impl IsEntityId for Id {
 
 impl Id {
     pub const TIMESTAMP_OFFSET: u64 = 1735678800000;
+    pub const MIN: Self = Self::from_parts(0, 0, Metadata::new(Kind::MIN, 0));
 }
 
 impl fmt::Debug for Id {