diff --git a/Cargo.toml b/Cargo.toml
index 5c4ea3819..42cd00dea 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -86,6 +86,7 @@ suspicious = { level = "deny", priority = -1 }
 uninlined_format_args = "allow"
 unused_self = "deny"
 unwrap_used = "deny"
+unimplemented = "deny"
 
 [workspace.dependencies]
 lemmy_api = { version = "=0.19.5", path = "./crates/api" }
diff --git a/crates/apub/src/activities/block/mod.rs b/crates/apub/src/activities/block/mod.rs
index ced50e2de..d42b62369 100644
--- a/crates/apub/src/activities/block/mod.rs
+++ b/crates/apub/src/activities/block/mod.rs
@@ -38,7 +38,6 @@ pub enum SiteOrCommunity {
   Site(ApubSite),
   Community(ApubCommunity),
 }
-
 #[derive(Deserialize)]
 #[serde(untagged)]
 pub enum InstanceOrGroup {
@@ -74,12 +73,18 @@ impl Object for SiteOrCommunity {
     })
   }
 
-  async fn delete(self, _data: &Data<Self::DataType>) -> LemmyResult<()> {
-    unimplemented!()
+  async fn delete(self, data: &Data<Self::DataType>) -> LemmyResult<()> {
+    match self {
+      SiteOrCommunity::Site(i) => i.delete(data).await,
+      SiteOrCommunity::Community(c) => c.delete(data).await,
+    }
   }
 
-  async fn into_json(self, _data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
-    unimplemented!()
+  async fn into_json(self, data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
+    Ok(match self {
+      SiteOrCommunity::Site(i) => InstanceOrGroup::Instance(i.into_json(data).await?),
+      SiteOrCommunity::Community(c) => InstanceOrGroup::Group(c.into_json(data).await?),
+    })
   }
 
   #[tracing::instrument(skip_all)]
diff --git a/crates/apub/src/activities/deletion/delete.rs b/crates/apub/src/activities/deletion/delete.rs
index cecc051b4..d203aacf2 100644
--- a/crates/apub/src/activities/deletion/delete.rs
+++ b/crates/apub/src/activities/deletion/delete.rs
@@ -175,8 +175,9 @@ pub(in crate::activities) async fn receive_remove_action(
       )
       .await?;
     }
-    DeletableObjects::PrivateMessage(_) => unimplemented!(),
-    DeletableObjects::Person { .. } => unimplemented!(),
+    // TODO these need to be implemented yet, for now, return errors
+    DeletableObjects::PrivateMessage(_) => Err(LemmyErrorType::CouldntFindPrivateMessage)?,
+    DeletableObjects::Person(_) => Err(LemmyErrorType::CouldntFindPerson)?,
   }
   Ok(())
 }
diff --git a/crates/apub/src/activities/deletion/undo_delete.rs b/crates/apub/src/activities/deletion/undo_delete.rs
index 4f0fad670..b50580852 100644
--- a/crates/apub/src/activities/deletion/undo_delete.rs
+++ b/crates/apub/src/activities/deletion/undo_delete.rs
@@ -155,8 +155,9 @@ impl UndoDelete {
         )
         .await?;
       }
-      DeletableObjects::PrivateMessage(_) => unimplemented!(),
-      DeletableObjects::Person { .. } => unimplemented!(),
+      // TODO these need to be implemented yet, for now, return errors
+      DeletableObjects::PrivateMessage(_) => Err(LemmyErrorType::CouldntFindPrivateMessage)?,
+      DeletableObjects::Person(_) => Err(LemmyErrorType::CouldntFindPerson)?,
     }
     Ok(())
   }
diff --git a/crates/apub/src/activity_lists.rs b/crates/apub/src/activity_lists.rs
index 3aeb7e45e..2d1fac449 100644
--- a/crates/apub/src/activity_lists.rs
+++ b/crates/apub/src/activity_lists.rs
@@ -26,7 +26,7 @@ use crate::{
 };
 use activitypub_federation::{config::Data, traits::ActivityHandler};
 use lemmy_api_common::context::LemmyContext;
-use lemmy_utils::error::LemmyResult;
+use lemmy_utils::{error::LemmyResult, LemmyErrorType};
 use serde::{Deserialize, Serialize};
 use url::Url;
 
@@ -117,7 +117,7 @@ impl InCommunity for AnnouncableActivities {
       CollectionRemove(a) => a.community(context).await,
       LockPost(a) => a.community(context).await,
       UndoLockPost(a) => a.community(context).await,
-      Page(_) => unimplemented!(),
+      Page(_) => Err(LemmyErrorType::CouldntFindPost.into()),
     }
   }
 }
diff --git a/crates/apub/src/fetcher/post_or_comment.rs b/crates/apub/src/fetcher/post_or_comment.rs
index 083369b9d..e352e1257 100644
--- a/crates/apub/src/fetcher/post_or_comment.rs
+++ b/crates/apub/src/fetcher/post_or_comment.rs
@@ -61,8 +61,11 @@ impl Object for PostOrComment {
     }
   }
 
-  async fn into_json(self, _data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
-    unimplemented!()
+  async fn into_json(self, data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
+    Ok(match self {
+      PostOrComment::Post(p) => PageOrNote::Page(Box::new(p.into_json(data).await?)),
+      PostOrComment::Comment(c) => PageOrNote::Note(c.into_json(data).await?),
+    })
   }
 
   #[tracing::instrument(skip_all)]
diff --git a/crates/apub/src/fetcher/search.rs b/crates/apub/src/fetcher/search.rs
index 8c533ba88..76c284820 100644
--- a/crates/apub/src/fetcher/search.rs
+++ b/crates/apub/src/fetcher/search.rs
@@ -118,8 +118,17 @@ impl Object for SearchableObjects {
     }
   }
 
-  async fn into_json(self, _data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
-    unimplemented!()
+  async fn into_json(self, data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
+    Ok(match self {
+      SearchableObjects::Post(p) => SearchableKinds::Page(Box::new(p.into_json(data).await?)),
+      SearchableObjects::Comment(c) => SearchableKinds::Note(c.into_json(data).await?),
+      SearchableObjects::PersonOrCommunity(pc) => {
+        SearchableKinds::PersonOrGroup(Box::new(match *pc {
+          UserOrCommunity::User(p) => PersonOrGroup::Person(p.into_json(data).await?),
+          UserOrCommunity::Community(c) => PersonOrGroup::Group(c.into_json(data).await?),
+        }))
+      }
+    })
   }
 
   #[tracing::instrument(skip_all)]
diff --git a/crates/apub/src/fetcher/site_or_community_or_user.rs b/crates/apub/src/fetcher/site_or_community_or_user.rs
index 30b5fd568..c6a1bb17e 100644
--- a/crates/apub/src/fetcher/site_or_community_or_user.rs
+++ b/crates/apub/src/fetcher/site_or_community_or_user.rs
@@ -1,6 +1,6 @@
 use crate::{
   fetcher::user_or_community::{PersonOrGroup, UserOrCommunity},
-  objects::instance::ApubSite,
+  objects::{community::ApubCommunity, instance::ApubSite, person::ApubPerson},
   protocol::objects::instance::Instance,
 };
 use activitypub_federation::{
@@ -41,11 +41,14 @@ impl Object for SiteOrCommunityOrUser {
   }
 
   #[tracing::instrument(skip_all)]
-  async fn read_from_id(
-    _object_id: Url,
-    _data: &Data<Self::DataType>,
-  ) -> LemmyResult<Option<Self>> {
-    unimplemented!();
+  async fn read_from_id(object_id: Url, data: &Data<Self::DataType>) -> LemmyResult<Option<Self>> {
+    let site = ApubSite::read_from_id(object_id.clone(), data).await?;
+    Ok(match site {
+      Some(o) => Some(SiteOrCommunityOrUser::Site(o)),
+      None => UserOrCommunity::read_from_id(object_id, data)
+        .await?
+        .map(SiteOrCommunityOrUser::UserOrCommunity),
+    })
   }
 
   #[tracing::instrument(skip_all)]
@@ -56,8 +59,13 @@ impl Object for SiteOrCommunityOrUser {
     }
   }
 
-  async fn into_json(self, _data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
-    unimplemented!()
+  async fn into_json(self, data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
+    Ok(match self {
+      SiteOrCommunityOrUser::Site(p) => SiteOrPersonOrGroup::Instance(p.into_json(data).await?),
+      SiteOrCommunityOrUser::UserOrCommunity(p) => {
+        SiteOrPersonOrGroup::PersonOrGroup(p.into_json(data).await?)
+      }
+    })
   }
 
   #[tracing::instrument(skip_all)]
@@ -75,8 +83,18 @@ impl Object for SiteOrCommunityOrUser {
   }
 
   #[tracing::instrument(skip_all)]
-  async fn from_json(_apub: Self::Kind, _data: &Data<Self::DataType>) -> LemmyResult<Self> {
-    unimplemented!();
+  async fn from_json(apub: Self::Kind, data: &Data<Self::DataType>) -> LemmyResult<Self> {
+    Ok(match apub {
+      SiteOrPersonOrGroup::Instance(a) => {
+        SiteOrCommunityOrUser::Site(ApubSite::from_json(a, data).await?)
+      }
+      SiteOrPersonOrGroup::PersonOrGroup(a) => SiteOrCommunityOrUser::UserOrCommunity(match a {
+        PersonOrGroup::Person(p) => UserOrCommunity::User(ApubPerson::from_json(p, data).await?),
+        PersonOrGroup::Group(g) => {
+          UserOrCommunity::Community(ApubCommunity::from_json(g, data).await?)
+        }
+      }),
+    })
   }
 }
 
@@ -103,6 +121,9 @@ impl Actor for SiteOrCommunityOrUser {
   }
 
   fn inbox(&self) -> Url {
-    unimplemented!()
+    match self {
+      SiteOrCommunityOrUser::Site(u) => u.inbox(),
+      SiteOrCommunityOrUser::UserOrCommunity(c) => c.inbox(),
+    }
   }
 }
diff --git a/crates/apub/src/fetcher/user_or_community.rs b/crates/apub/src/fetcher/user_or_community.rs
index d29cbb6b0..129af8803 100644
--- a/crates/apub/src/fetcher/user_or_community.rs
+++ b/crates/apub/src/fetcher/user_or_community.rs
@@ -65,8 +65,11 @@ impl Object for UserOrCommunity {
     }
   }
 
-  async fn into_json(self, _data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
-    unimplemented!()
+  async fn into_json(self, data: &Data<Self::DataType>) -> LemmyResult<Self::Kind> {
+    Ok(match self {
+      UserOrCommunity::User(p) => PersonOrGroup::Person(p.into_json(data).await?),
+      UserOrCommunity::Community(p) => PersonOrGroup::Group(p.into_json(data).await?),
+    })
   }
 
   #[tracing::instrument(skip_all)]
@@ -115,7 +118,10 @@ impl Actor for UserOrCommunity {
   }
 
   fn inbox(&self) -> Url {
-    unimplemented!()
+    match self {
+      UserOrCommunity::User(p) => p.inbox(),
+      UserOrCommunity::Community(p) => p.inbox(),
+    }
   }
 }
 
diff --git a/crates/apub/src/objects/instance.rs b/crates/apub/src/objects/instance.rs
index 6f0a7328d..c67a223e0 100644
--- a/crates/apub/src/objects/instance.rs
+++ b/crates/apub/src/objects/instance.rs
@@ -88,7 +88,7 @@ impl Object for ApubSite {
   }
 
   async fn delete(self, _data: &Data<Self::DataType>) -> LemmyResult<()> {
-    unimplemented!()
+    Err(LemmyErrorType::CantDeleteSite.into())
   }
 
   #[tracing::instrument(skip_all)]
diff --git a/crates/apub/src/objects/private_message.rs b/crates/apub/src/objects/private_message.rs
index 35f2fe418..fc9697391 100644
--- a/crates/apub/src/objects/private_message.rs
+++ b/crates/apub/src/objects/private_message.rs
@@ -73,7 +73,7 @@ impl Object for ApubPrivateMessage {
 
   async fn delete(self, _context: &Data<Self::DataType>) -> LemmyResult<()> {
     // do nothing, because pm can't be fetched over http
-    unimplemented!()
+    Err(LemmyErrorType::CouldntFindPrivateMessage.into())
   }
 
   #[tracing::instrument(skip_all)]
diff --git a/crates/apub/src/protocol/objects/page.rs b/crates/apub/src/protocol/objects/page.rs
index 6075b14a1..9c37c88c3 100644
--- a/crates/apub/src/protocol/objects/page.rs
+++ b/crates/apub/src/protocol/objects/page.rs
@@ -193,10 +193,12 @@ impl ActivityHandler for Page {
   type DataType = LemmyContext;
   type Error = LemmyError;
   fn id(&self) -> &Url {
-    unimplemented!()
+    self.id.inner()
   }
+
   fn actor(&self) -> &Url {
-    unimplemented!()
+    debug_assert!(false);
+    self.id.inner()
   }
   async fn verify(&self, data: &Data<Self::DataType>) -> LemmyResult<()> {
     ApubPost::verify(self, self.id.inner(), data).await
diff --git a/crates/db_schema/src/impls/comment.rs b/crates/db_schema/src/impls/comment.rs
index aa7b418fe..977bc9083 100644
--- a/crates/db_schema/src/impls/comment.rs
+++ b/crates/db_schema/src/impls/comment.rs
@@ -117,7 +117,7 @@ impl Crud for Comment {
   type UpdateForm = CommentUpdateForm;
   type IdType = CommentId;
 
-  /// This is unimplemented, use [[Comment::create]]
+  /// Use [[Comment::create]]
   async fn create(pool: &mut DbPool<'_>, comment_form: &Self::InsertForm) -> Result<Self, Error> {
     debug_assert!(false);
     Comment::create(pool, comment_form, None).await
diff --git a/crates/db_schema/src/impls/person.rs b/crates/db_schema/src/impls/person.rs
index 89c108f8c..f2909218c 100644
--- a/crates/db_schema/src/impls/person.rs
+++ b/crates/db_schema/src/impls/person.rs
@@ -191,9 +191,12 @@ impl Followable for PersonFollower {
       .get_result::<Self>(conn)
       .await
   }
+
+  /// Currently no user following
   async fn follow_accepted(_: &mut DbPool<'_>, _: CommunityId, _: PersonId) -> Result<Self, Error> {
-    unimplemented!()
+    Err(Error::NotFound)
   }
+
   async fn unfollow(pool: &mut DbPool<'_>, form: &PersonFollowerForm) -> Result<usize, Error> {
     let conn = &mut get_conn(pool).await?;
     diesel::delete(person_follower::table.find((form.follower_id, form.person_id)))
diff --git a/crates/db_schema/src/impls/private_message_report.rs b/crates/db_schema/src/impls/private_message_report.rs
index b5d8fd039..0d5876659 100644
--- a/crates/db_schema/src/impls/private_message_report.rs
+++ b/crates/db_schema/src/impls/private_message_report.rs
@@ -52,7 +52,7 @@ impl Reportable for PrivateMessageReport {
     _pm_id_: PrivateMessageId,
     _by_resolver_id: PersonId,
   ) -> Result<usize, Error> {
-    unimplemented!()
+    Err(Error::NotFound)
   }
 
   async fn unresolve(
diff --git a/crates/db_schema/src/impls/site.rs b/crates/db_schema/src/impls/site.rs
index a371f9e07..9dbd2401d 100644
--- a/crates/db_schema/src/impls/site.rs
+++ b/crates/db_schema/src/impls/site.rs
@@ -20,7 +20,7 @@ impl Crud for Site {
 
   /// Use SiteView::read_local, or Site::read_from_apub_id instead
   async fn read(_pool: &mut DbPool<'_>, _site_id: SiteId) -> Result<Option<Self>, Error> {
-    unimplemented!()
+    Err(Error::NotFound)
   }
 
   async fn create(pool: &mut DbPool<'_>, form: &Self::InsertForm) -> Result<Self, Error> {
diff --git a/crates/utils/src/error.rs b/crates/utils/src/error.rs
index 896539057..542888612 100644
--- a/crates/utils/src/error.rs
+++ b/crates/utils/src/error.rs
@@ -179,6 +179,7 @@ pub enum LemmyErrorType {
   UrlWithoutDomain,
   InboxTimeout,
   Unknown(String),
+  CantDeleteSite,
 }
 
 cfg_if! {