diff --git a/config/config.toml b/config/config.toml
index 295bc8952..3f3f4c490 100644
--- a/config/config.toml
+++ b/config/config.toml
@@ -25,8 +25,8 @@ db_type = "postgres"
 db_path = "${base_dir}/mega.db"
 
 # database connection url, set to "postgres://mono:mono@mono-pg:5432/mono" if you're using docker
-db_url = "postgres://mono:mono@localhost:5432/mono"
-#db_url = "postgres://mono:mono@127.0.0.1:5432/mono"
+#db_url = "postgres://mono:mono@localhost:5432/mono"
+db_url = "postgres://mono:mono@127.0.0.1:5432/mono"
 
 # db max connection, setting it to twice the number of CPU cores would be appropriate.
 max_connection = 16
diff --git a/jupiter/callisto/src/gpg_key.rs b/jupiter/callisto/src/gpg_key.rs
index b9ee5c952..be1373802 100644
--- a/jupiter/callisto/src/gpg_key.rs
+++ b/jupiter/callisto/src/gpg_key.rs
@@ -1,3 +1,5 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 1.1.14
+
 use sea_orm::entity::prelude::*;
 use serde::{Deserialize, Serialize};
 
@@ -7,7 +9,7 @@ pub struct Model {
     #[sea_orm(primary_key)]
     pub id: i64,
     pub user_id: i64,
-    #[sea_orm(column_type = "Text", unique)]
+    #[sea_orm(column_type = "Text")]
     pub key_id: String,
     #[sea_orm(column_type = "Text")]
     pub public_key: String,
@@ -31,4 +33,10 @@ pub enum Relation {
     User,
 }
 
+impl Related<super::user::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::User.def()
+    }
+}
+
 impl ActiveModelBehavior for ActiveModel {}
diff --git a/jupiter/callisto/src/mod.rs b/jupiter/callisto/src/mod.rs
index 99afc44c1..13380b35b 100644
--- a/jupiter/callisto/src/mod.rs
+++ b/jupiter/callisto/src/mod.rs
@@ -1,6 +1,5 @@
 //! `SeaORM` Entity, @generated by sea-orm-codegen 1.1.14
 
-pub mod entity_ext;
 pub mod prelude;
 
 pub mod access_token;
@@ -44,3 +43,4 @@ pub mod sea_orm_active_enums;
 pub mod ssh_keys;
 pub mod user;
 pub mod vault;
+pub mod entity_ext;
diff --git a/jupiter/callisto/src/prelude.rs b/jupiter/callisto/src/prelude.rs
index d1b7c368a..e25d12b44 100644
--- a/jupiter/callisto/src/prelude.rs
+++ b/jupiter/callisto/src/prelude.rs
@@ -10,6 +10,7 @@ pub use super::git_pr::Entity as GitPr;
 pub use super::git_repo::Entity as GitRepo;
 pub use super::git_tag::Entity as GitTag;
 pub use super::git_tree::Entity as GitTree;
+pub use super::gpg_key::Entity as GpgKey;
 pub use super::import_refs::Entity as ImportRefs;
 pub use super::item_assignees::Entity as ItemAssignees;
 pub use super::item_labels::Entity as ItemLabels;
diff --git a/jupiter/callisto/src/user.rs b/jupiter/callisto/src/user.rs
index 2f5241f75..cf49322ce 100644
--- a/jupiter/callisto/src/user.rs
+++ b/jupiter/callisto/src/user.rs
@@ -20,6 +20,15 @@ pub struct Model {
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
-pub enum Relation {}
+pub enum Relation {
+    #[sea_orm(has_many = "super::gpg_key::Entity")]
+    GpgKey,
+}
+
+impl Related<super::gpg_key::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::GpgKey.def()
+    }
+}
 
 impl ActiveModelBehavior for ActiveModel {}
diff --git a/jupiter/src/migration/m20250820_102133_gpgkey.rs b/jupiter/src/migration/m20250820_102133_gpgkey.rs
index f864c4a3a..ea46c4988 100644
--- a/jupiter/src/migration/m20250820_102133_gpgkey.rs
+++ b/jupiter/src/migration/m20250820_102133_gpgkey.rs
@@ -1,4 +1,5 @@
 use sea_orm_migration::{prelude::*, schema::*};
+use crate::migration::pk_bigint;
 
 #[derive(DeriveMigrationName)]
 pub struct Migration;
@@ -12,7 +13,7 @@ impl MigrationTrait for Migration {
                 Table::create()
                     .table(GpgKey::Table)
                     .if_not_exists()
-                    .col(pk_auto(GpgKey::Id))
+                    .col(pk_bigint(GpgKey::Id))
                     .col(big_integer(GpgKey::UserId))
                     .col(text(GpgKey::KeyId))
                     .col(text(GpgKey::PublicKey))