diff --git a/packages/backend/native-utils/Cargo.toml b/packages/backend/native-utils/Cargo.toml
index 6f3c0e23f8..3c70a0209b 100644
--- a/packages/backend/native-utils/Cargo.toml
+++ b/packages/backend/native-utils/Cargo.toml
@@ -4,15 +4,40 @@ name = "native-utils"
 version = "0.0.0"
 
 [workspace]
-members = ["crates/*"]
+members = ["migration/Cargo.toml"]
+
+[features]
+default = ["napi"]
+noarray = []
+napi = ["dep:napi", "dep:napi-derive"]
 
 [lib]
-crate-type = ["cdylib"]
+crate-type = ["cdylib", "lib"]
 
 [dependencies]
+async-trait = "0.1.68"
+cfg-if = "1.0.0"
+chrono = "0.4.24"
+cuid2 = "0.1.0"
+derive_more = "0.99.17"
+jsonschema = "0.17.0"
+once_cell = "1.17.1"
+parse-display = "0.8.0"
+rand = "0.8.5"
+schemars = { version = "0.8.12", features = ["chrono"] }
+sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "postgres-array", "sqlx-sqlite", "runtime-tokio-rustls"] }
+serde = { version = "1.0.163", features = ["derive"] }
+serde_json = "1.0.96"
+thiserror = "1.0.40"
+tokio = { version = "1.28.1", features = ["full"] }
+utoipa = "3.3.0"
+
 # Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
-napi = { version = "2.12.0", default-features = false, features = ["napi4"] }
-napi-derive = "2.12.0"
+napi = { version = "2.12.0", default-features = false, features = ["napi4", "tokio_rt"], optional = true }
+napi-derive = { version = "2.12.0", optional = true }
+
+[dev-dependencies]
+pretty_assertions = "1.3.0"
 
 [build-dependencies]
 napi-build = "2.0.1"
diff --git a/packages/backend/native-utils/crates/database/Cargo.toml b/packages/backend/native-utils/crates/database/Cargo.toml
deleted file mode 100644
index 440a76cf58..0000000000
--- a/packages/backend/native-utils/crates/database/Cargo.toml
+++ /dev/null
@@ -1,12 +0,0 @@
-[package]
-name = "database"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-once_cell = "1.17.1"
-sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "runtime-tokio-rustls"] }
-thiserror = "1.0.40"
-tokio = { version = "1.28.1", features = ["macros"] }
diff --git a/packages/backend/native-utils/crates/model/Cargo.toml b/packages/backend/native-utils/crates/model/Cargo.toml
deleted file mode 100644
index 4925fb702f..0000000000
--- a/packages/backend/native-utils/crates/model/Cargo.toml
+++ /dev/null
@@ -1,35 +0,0 @@
-[package]
-name = "model"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-[features]
-default = ["napi"]
-noarray = []
-napi = ["dep:napi", "dep:napi-derive"]
-
-[dependencies]
-async-trait = "0.1.68"
-cfg-if = "1.0.0"
-chrono = "0.4.24"
-database = { path = "../database" }
-derive_more = "0.99.17"
-jsonschema = "0.17.0"
-once_cell = "1.17.1"
-parse-display = "0.8.0"
-schemars = { version = "0.8.12", features = ["chrono"] }
-sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "postgres-array", "sqlx-sqlite", "runtime-tokio-rustls"] }
-serde = { version = "1.0.163", features = ["derive"] }
-serde_json = "1.0.96"
-thiserror = "1.0.40"
-tokio = { version = "1.28.1", features = ["sync"] }
-util = { path = "../util" }
-utoipa = "3.3.0"
-
-# Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
-napi = { version = "2.12.0", default-features = false, features = ["napi4"], optional = true }
-napi-derive = { version = "2.12.0", optional = true }
-
-[dev-dependencies]
-pretty_assertions = "1.3.0"
diff --git a/packages/backend/native-utils/crates/util/Cargo.toml b/packages/backend/native-utils/crates/util/Cargo.toml
deleted file mode 100644
index 6050342dd9..0000000000
--- a/packages/backend/native-utils/crates/util/Cargo.toml
+++ /dev/null
@@ -1,15 +0,0 @@
-[package]
-name = "util"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-cuid2 = "0.1.0"
-once_cell = "1.17.1"
-rand = "0.8.5"
-thiserror = "1.0.40"
-
-[dev-dependencies]
-pretty_assertions = "1.3.0"
diff --git a/packages/backend/native-utils/crates/migration/Cargo.toml b/packages/backend/native-utils/migration/Cargo.toml
similarity index 100%
rename from packages/backend/native-utils/crates/migration/Cargo.toml
rename to packages/backend/native-utils/migration/Cargo.toml
diff --git a/packages/backend/native-utils/crates/migration/README.md b/packages/backend/native-utils/migration/README.md
similarity index 100%
rename from packages/backend/native-utils/crates/migration/README.md
rename to packages/backend/native-utils/migration/README.md
diff --git a/packages/backend/native-utils/crates/migration/src/lib.rs b/packages/backend/native-utils/migration/src/lib.rs
similarity index 100%
rename from packages/backend/native-utils/crates/migration/src/lib.rs
rename to packages/backend/native-utils/migration/src/lib.rs
diff --git a/packages/backend/native-utils/crates/migration/src/m20230531_180824_drop_reversi.rs b/packages/backend/native-utils/migration/src/m20230531_180824_drop_reversi.rs
similarity index 100%
rename from packages/backend/native-utils/crates/migration/src/m20230531_180824_drop_reversi.rs
rename to packages/backend/native-utils/migration/src/m20230531_180824_drop_reversi.rs
diff --git a/packages/backend/native-utils/crates/migration/src/main.rs b/packages/backend/native-utils/migration/src/main.rs
similarity index 100%
rename from packages/backend/native-utils/crates/migration/src/main.rs
rename to packages/backend/native-utils/migration/src/main.rs
diff --git a/packages/backend/native-utils/crates/migration/src/vec_to_json.rs b/packages/backend/native-utils/migration/src/vec_to_json.rs
similarity index 100%
rename from packages/backend/native-utils/crates/migration/src/vec_to_json.rs
rename to packages/backend/native-utils/migration/src/vec_to_json.rs
diff --git a/packages/backend/native-utils/crates/database/src/error.rs b/packages/backend/native-utils/src/database/error.rs
similarity index 100%
rename from packages/backend/native-utils/crates/database/src/error.rs
rename to packages/backend/native-utils/src/database/error.rs
diff --git a/packages/backend/native-utils/crates/database/src/lib.rs b/packages/backend/native-utils/src/database/mod.rs
similarity index 87%
rename from packages/backend/native-utils/crates/database/src/lib.rs
rename to packages/backend/native-utils/src/database/mod.rs
index 0012d2292f..c3cdea7278 100644
--- a/packages/backend/native-utils/crates/database/src/lib.rs
+++ b/packages/backend/native-utils/src/database/mod.rs
@@ -1,9 +1,8 @@
 pub mod error;
 
+use error::Error;
 use sea_orm::{Database, DbConn};
 
-use crate::error::Error;
-
 static DB_CONN: once_cell::sync::OnceCell<DbConn> = once_cell::sync::OnceCell::new();
 
 pub async fn init_database(connection_uri: impl Into<String>) -> Result<(), Error> {
@@ -18,8 +17,7 @@ pub fn get_database() -> Result<&'static DbConn, Error> {
 
 #[cfg(test)]
 mod unit_test {
-    use super::get_database;
-    use crate::error::Error;
+    use super::{error::Error, get_database};
 
     #[test]
     fn error_uninitialized() {
diff --git a/packages/backend/native-utils/src/lib.rs b/packages/backend/native-utils/src/lib.rs
index e131901406..6a5e3f7f2c 100644
--- a/packages/backend/native-utils/src/lib.rs
+++ b/packages/backend/native-utils/src/lib.rs
@@ -1 +1,6 @@
+pub mod database;
+pub mod model;
+pub mod util;
+
+#[cfg(feature = "napi")]
 pub mod mastodon_api;
diff --git a/packages/backend/native-utils/crates/model/src/entity.rs b/packages/backend/native-utils/src/model/entity.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity.rs
rename to packages/backend/native-utils/src/model/entity.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/abuse_user_report.rs b/packages/backend/native-utils/src/model/entity/abuse_user_report.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/abuse_user_report.rs
rename to packages/backend/native-utils/src/model/entity/abuse_user_report.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/access_token.rs b/packages/backend/native-utils/src/model/entity/access_token.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/access_token.rs
rename to packages/backend/native-utils/src/model/entity/access_token.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/ad.rs b/packages/backend/native-utils/src/model/entity/ad.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/ad.rs
rename to packages/backend/native-utils/src/model/entity/ad.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/announcement.rs b/packages/backend/native-utils/src/model/entity/announcement.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/announcement.rs
rename to packages/backend/native-utils/src/model/entity/announcement.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/announcement_read.rs b/packages/backend/native-utils/src/model/entity/announcement_read.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/announcement_read.rs
rename to packages/backend/native-utils/src/model/entity/announcement_read.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/antenna.rs b/packages/backend/native-utils/src/model/entity/antenna.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/antenna.rs
rename to packages/backend/native-utils/src/model/entity/antenna.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/antenna_note.rs b/packages/backend/native-utils/src/model/entity/antenna_note.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/antenna_note.rs
rename to packages/backend/native-utils/src/model/entity/antenna_note.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/app.rs b/packages/backend/native-utils/src/model/entity/app.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/app.rs
rename to packages/backend/native-utils/src/model/entity/app.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/attestation_challenge.rs b/packages/backend/native-utils/src/model/entity/attestation_challenge.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/attestation_challenge.rs
rename to packages/backend/native-utils/src/model/entity/attestation_challenge.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/auth_session.rs b/packages/backend/native-utils/src/model/entity/auth_session.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/auth_session.rs
rename to packages/backend/native-utils/src/model/entity/auth_session.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/blocking.rs b/packages/backend/native-utils/src/model/entity/blocking.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/blocking.rs
rename to packages/backend/native-utils/src/model/entity/blocking.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/channel.rs b/packages/backend/native-utils/src/model/entity/channel.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/channel.rs
rename to packages/backend/native-utils/src/model/entity/channel.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/channel_following.rs b/packages/backend/native-utils/src/model/entity/channel_following.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/channel_following.rs
rename to packages/backend/native-utils/src/model/entity/channel_following.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/channel_note_pining.rs b/packages/backend/native-utils/src/model/entity/channel_note_pining.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/channel_note_pining.rs
rename to packages/backend/native-utils/src/model/entity/channel_note_pining.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/clip.rs b/packages/backend/native-utils/src/model/entity/clip.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/clip.rs
rename to packages/backend/native-utils/src/model/entity/clip.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/clip_note.rs b/packages/backend/native-utils/src/model/entity/clip_note.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/clip_note.rs
rename to packages/backend/native-utils/src/model/entity/clip_note.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/drive_file.rs b/packages/backend/native-utils/src/model/entity/drive_file.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/drive_file.rs
rename to packages/backend/native-utils/src/model/entity/drive_file.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/drive_folder.rs b/packages/backend/native-utils/src/model/entity/drive_folder.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/drive_folder.rs
rename to packages/backend/native-utils/src/model/entity/drive_folder.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/emoji.rs b/packages/backend/native-utils/src/model/entity/emoji.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/emoji.rs
rename to packages/backend/native-utils/src/model/entity/emoji.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/follow_request.rs b/packages/backend/native-utils/src/model/entity/follow_request.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/follow_request.rs
rename to packages/backend/native-utils/src/model/entity/follow_request.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/following.rs b/packages/backend/native-utils/src/model/entity/following.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/following.rs
rename to packages/backend/native-utils/src/model/entity/following.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/gallery_like.rs b/packages/backend/native-utils/src/model/entity/gallery_like.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/gallery_like.rs
rename to packages/backend/native-utils/src/model/entity/gallery_like.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/gallery_post.rs b/packages/backend/native-utils/src/model/entity/gallery_post.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/gallery_post.rs
rename to packages/backend/native-utils/src/model/entity/gallery_post.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/hashtag.rs b/packages/backend/native-utils/src/model/entity/hashtag.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/hashtag.rs
rename to packages/backend/native-utils/src/model/entity/hashtag.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/instance.rs b/packages/backend/native-utils/src/model/entity/instance.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/instance.rs
rename to packages/backend/native-utils/src/model/entity/instance.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/messaging_message.rs b/packages/backend/native-utils/src/model/entity/messaging_message.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/messaging_message.rs
rename to packages/backend/native-utils/src/model/entity/messaging_message.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/meta.rs b/packages/backend/native-utils/src/model/entity/meta.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/meta.rs
rename to packages/backend/native-utils/src/model/entity/meta.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/migrations.rs b/packages/backend/native-utils/src/model/entity/migrations.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/migrations.rs
rename to packages/backend/native-utils/src/model/entity/migrations.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/moderation_log.rs b/packages/backend/native-utils/src/model/entity/moderation_log.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/moderation_log.rs
rename to packages/backend/native-utils/src/model/entity/moderation_log.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/muted_note.rs b/packages/backend/native-utils/src/model/entity/muted_note.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/muted_note.rs
rename to packages/backend/native-utils/src/model/entity/muted_note.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/muting.rs b/packages/backend/native-utils/src/model/entity/muting.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/muting.rs
rename to packages/backend/native-utils/src/model/entity/muting.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/newtype/macros.rs b/packages/backend/native-utils/src/model/entity/newtype/macros.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/newtype/macros.rs
rename to packages/backend/native-utils/src/model/entity/newtype/macros.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/newtype/mod.rs b/packages/backend/native-utils/src/model/entity/newtype/mod.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/newtype/mod.rs
rename to packages/backend/native-utils/src/model/entity/newtype/mod.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note.rs b/packages/backend/native-utils/src/model/entity/note.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note.rs
rename to packages/backend/native-utils/src/model/entity/note.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_edit.rs b/packages/backend/native-utils/src/model/entity/note_edit.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_edit.rs
rename to packages/backend/native-utils/src/model/entity/note_edit.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_favorite.rs b/packages/backend/native-utils/src/model/entity/note_favorite.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_favorite.rs
rename to packages/backend/native-utils/src/model/entity/note_favorite.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_reaction.rs b/packages/backend/native-utils/src/model/entity/note_reaction.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_reaction.rs
rename to packages/backend/native-utils/src/model/entity/note_reaction.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_thread_muting.rs b/packages/backend/native-utils/src/model/entity/note_thread_muting.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_thread_muting.rs
rename to packages/backend/native-utils/src/model/entity/note_thread_muting.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_unread.rs b/packages/backend/native-utils/src/model/entity/note_unread.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_unread.rs
rename to packages/backend/native-utils/src/model/entity/note_unread.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/note_watching.rs b/packages/backend/native-utils/src/model/entity/note_watching.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/note_watching.rs
rename to packages/backend/native-utils/src/model/entity/note_watching.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/notification.rs b/packages/backend/native-utils/src/model/entity/notification.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/notification.rs
rename to packages/backend/native-utils/src/model/entity/notification.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/page.rs b/packages/backend/native-utils/src/model/entity/page.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/page.rs
rename to packages/backend/native-utils/src/model/entity/page.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/page_like.rs b/packages/backend/native-utils/src/model/entity/page_like.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/page_like.rs
rename to packages/backend/native-utils/src/model/entity/page_like.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/password_reset_request.rs b/packages/backend/native-utils/src/model/entity/password_reset_request.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/password_reset_request.rs
rename to packages/backend/native-utils/src/model/entity/password_reset_request.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/poll.rs b/packages/backend/native-utils/src/model/entity/poll.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/poll.rs
rename to packages/backend/native-utils/src/model/entity/poll.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/poll_vote.rs b/packages/backend/native-utils/src/model/entity/poll_vote.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/poll_vote.rs
rename to packages/backend/native-utils/src/model/entity/poll_vote.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/prelude.rs b/packages/backend/native-utils/src/model/entity/prelude.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/prelude.rs
rename to packages/backend/native-utils/src/model/entity/prelude.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/promo_note.rs b/packages/backend/native-utils/src/model/entity/promo_note.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/promo_note.rs
rename to packages/backend/native-utils/src/model/entity/promo_note.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/promo_read.rs b/packages/backend/native-utils/src/model/entity/promo_read.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/promo_read.rs
rename to packages/backend/native-utils/src/model/entity/promo_read.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/registration_ticket.rs b/packages/backend/native-utils/src/model/entity/registration_ticket.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/registration_ticket.rs
rename to packages/backend/native-utils/src/model/entity/registration_ticket.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/registry_item.rs b/packages/backend/native-utils/src/model/entity/registry_item.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/registry_item.rs
rename to packages/backend/native-utils/src/model/entity/registry_item.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/relay.rs b/packages/backend/native-utils/src/model/entity/relay.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/relay.rs
rename to packages/backend/native-utils/src/model/entity/relay.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/renote_muting.rs b/packages/backend/native-utils/src/model/entity/renote_muting.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/renote_muting.rs
rename to packages/backend/native-utils/src/model/entity/renote_muting.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/sea_orm_active_enums.rs b/packages/backend/native-utils/src/model/entity/sea_orm_active_enums.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/sea_orm_active_enums.rs
rename to packages/backend/native-utils/src/model/entity/sea_orm_active_enums.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/signin.rs b/packages/backend/native-utils/src/model/entity/signin.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/signin.rs
rename to packages/backend/native-utils/src/model/entity/signin.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/sw_subscription.rs b/packages/backend/native-utils/src/model/entity/sw_subscription.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/sw_subscription.rs
rename to packages/backend/native-utils/src/model/entity/sw_subscription.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/used_username.rs b/packages/backend/native-utils/src/model/entity/used_username.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/used_username.rs
rename to packages/backend/native-utils/src/model/entity/used_username.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user.rs b/packages/backend/native-utils/src/model/entity/user.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user.rs
rename to packages/backend/native-utils/src/model/entity/user.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_group.rs b/packages/backend/native-utils/src/model/entity/user_group.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_group.rs
rename to packages/backend/native-utils/src/model/entity/user_group.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_group_invitation.rs b/packages/backend/native-utils/src/model/entity/user_group_invitation.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_group_invitation.rs
rename to packages/backend/native-utils/src/model/entity/user_group_invitation.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_group_invite.rs b/packages/backend/native-utils/src/model/entity/user_group_invite.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_group_invite.rs
rename to packages/backend/native-utils/src/model/entity/user_group_invite.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_group_joining.rs b/packages/backend/native-utils/src/model/entity/user_group_joining.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_group_joining.rs
rename to packages/backend/native-utils/src/model/entity/user_group_joining.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_ip.rs b/packages/backend/native-utils/src/model/entity/user_ip.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_ip.rs
rename to packages/backend/native-utils/src/model/entity/user_ip.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_keypair.rs b/packages/backend/native-utils/src/model/entity/user_keypair.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_keypair.rs
rename to packages/backend/native-utils/src/model/entity/user_keypair.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_list.rs b/packages/backend/native-utils/src/model/entity/user_list.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_list.rs
rename to packages/backend/native-utils/src/model/entity/user_list.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_list_joining.rs b/packages/backend/native-utils/src/model/entity/user_list_joining.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_list_joining.rs
rename to packages/backend/native-utils/src/model/entity/user_list_joining.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_note_pining.rs b/packages/backend/native-utils/src/model/entity/user_note_pining.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_note_pining.rs
rename to packages/backend/native-utils/src/model/entity/user_note_pining.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_pending.rs b/packages/backend/native-utils/src/model/entity/user_pending.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_pending.rs
rename to packages/backend/native-utils/src/model/entity/user_pending.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_profile.rs b/packages/backend/native-utils/src/model/entity/user_profile.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_profile.rs
rename to packages/backend/native-utils/src/model/entity/user_profile.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_publickey.rs b/packages/backend/native-utils/src/model/entity/user_publickey.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_publickey.rs
rename to packages/backend/native-utils/src/model/entity/user_publickey.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/user_security_key.rs b/packages/backend/native-utils/src/model/entity/user_security_key.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/user_security_key.rs
rename to packages/backend/native-utils/src/model/entity/user_security_key.rs
diff --git a/packages/backend/native-utils/crates/model/src/entity/webhook.rs b/packages/backend/native-utils/src/model/entity/webhook.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/entity/webhook.rs
rename to packages/backend/native-utils/src/model/entity/webhook.rs
diff --git a/packages/backend/native-utils/crates/model/src/error.rs b/packages/backend/native-utils/src/model/error.rs
similarity index 62%
rename from packages/backend/native-utils/crates/model/src/error.rs
rename to packages/backend/native-utils/src/model/error.rs
index c90f3f5a32..2292246aed 100644
--- a/packages/backend/native-utils/crates/model/src/error.rs
+++ b/packages/backend/native-utils/src/model/error.rs
@@ -3,9 +3,16 @@ pub enum Error {
     #[error("Failed to parse string")]
     ParseError(#[from] parse_display::ParseError),
     #[error("Failed to get database connection")]
-    DbConnError(#[from] database::error::Error),
+    DbConnError(#[from] crate::database::error::Error),
     #[error("Database operation error: {0}")]
     DbOperationError(#[from] sea_orm::DbErr),
     #[error("Requested entity not found")]
     NotFound,
 }
+
+#[cfg(feature = "napi")]
+impl Into<napi::Error> for Error {
+    fn into(self) -> napi::Error {
+        napi::Error::from_reason(self.to_string())
+    }
+}
diff --git a/packages/backend/native-utils/crates/model/src/lib.rs b/packages/backend/native-utils/src/model/mod.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/lib.rs
rename to packages/backend/native-utils/src/model/mod.rs
diff --git a/packages/backend/native-utils/crates/model/src/repository.rs b/packages/backend/native-utils/src/model/repository.rs
similarity index 75%
rename from packages/backend/native-utils/crates/model/src/repository.rs
rename to packages/backend/native-utils/src/model/repository.rs
index 83573ab160..0f9f7de329 100644
--- a/packages/backend/native-utils/crates/model/src/repository.rs
+++ b/packages/backend/native-utils/src/model/repository.rs
@@ -3,7 +3,7 @@ pub mod antenna;
 use async_trait::async_trait;
 use schemars::JsonSchema;
 
-use crate::error::Error;
+use super::error::Error;
 
 #[async_trait]
 pub trait Repository<T: JsonSchema> {
@@ -14,7 +14,10 @@ pub trait Repository<T: JsonSchema> {
 mod macros {
     macro_rules! impl_pack_by_id {
         ($a:ty, $b:ident) => {
-            match <$a>::find_by_id($b).one(database::get_database()?).await? {
+            match <$a>::find_by_id($b)
+                .one(crate::database::get_database()?)
+                .await?
+            {
                 None => Err(Error::NotFound),
                 Some(m) => m.pack().await,
             }
diff --git a/packages/backend/native-utils/crates/model/src/repository/antenna.rs b/packages/backend/native-utils/src/model/repository/antenna.rs
similarity index 92%
rename from packages/backend/native-utils/crates/model/src/repository/antenna.rs
rename to packages/backend/native-utils/src/model/repository/antenna.rs
index c8324edd34..7c614b954b 100644
--- a/packages/backend/native-utils/crates/model/src/repository/antenna.rs
+++ b/packages/backend/native-utils/src/model/repository/antenna.rs
@@ -2,9 +2,10 @@ use async_trait::async_trait;
 use cfg_if::cfg_if;
 use sea_orm::{ColumnTrait, EntityTrait, QueryFilter};
 
-use crate::entity::{antenna, antenna_note, user_group_joining};
-use crate::error::Error;
-use crate::schema::Antenna;
+use crate::database;
+use crate::model::entity::{antenna, antenna_note, user_group_joining};
+use crate::model::error::Error;
+use crate::model::schema::Antenna;
 
 use super::macros::impl_pack_by_id;
 use super::Repository;
diff --git a/packages/backend/native-utils/crates/model/src/schema.rs b/packages/backend/native-utils/src/model/schema.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/schema.rs
rename to packages/backend/native-utils/src/model/schema.rs
diff --git a/packages/backend/native-utils/crates/model/src/schema/antenna.rs b/packages/backend/native-utils/src/model/schema/antenna.rs
similarity index 93%
rename from packages/backend/native-utils/crates/model/src/schema/antenna.rs
rename to packages/backend/native-utils/src/model/schema/antenna.rs
index 338998019c..6376b3bc73 100644
--- a/packages/backend/native-utils/crates/model/src/schema/antenna.rs
+++ b/packages/backend/native-utils/src/model/schema/antenna.rs
@@ -5,7 +5,8 @@ use schemars::JsonSchema;
 use utoipa::ToSchema;
 
 use super::Schema;
-use crate::entity::sea_orm_active_enums::AntennaSrcEnum;
+use crate::model;
+use crate::model::entity::sea_orm_active_enums::AntennaSrcEnum;
 
 #[derive(Clone, Debug, PartialEq, Eq, JsonSchema, ToSchema)]
 #[serde(rename_all = "camelCase")]
@@ -47,10 +48,10 @@ pub enum AntennaSrc {
 }
 
 impl TryFrom<AntennaSrcEnum> for super::AntennaSrc {
-    type Error = crate::error::Error;
+    type Error = model::error::Error;
 
     fn try_from(value: AntennaSrcEnum) -> Result<Self, Self::Error> {
-        value.to_string().parse().map_err(crate::error::Error::from)
+        value.to_string().parse().map_err(model::error::Error::from)
     }
 }
 
@@ -64,7 +65,7 @@ mod unit_test {
     use pretty_assertions::assert_eq;
     use serde_json::json;
 
-    use crate::{entity::sea_orm_active_enums::AntennaSrcEnum, schema::AntennaSrc};
+    use crate::model::{entity::sea_orm_active_enums::AntennaSrcEnum, schema::AntennaSrc};
 
     use super::VALIDATOR;
 
diff --git a/packages/backend/native-utils/crates/model/src/schema/app.rs b/packages/backend/native-utils/src/model/schema/app.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/schema/app.rs
rename to packages/backend/native-utils/src/model/schema/app.rs
diff --git a/packages/backend/native-utils/crates/model/src/schema/napi.rs b/packages/backend/native-utils/src/model/schema/napi.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/src/schema/napi.rs
rename to packages/backend/native-utils/src/model/schema/napi.rs
diff --git a/packages/backend/native-utils/crates/model/src/schema/napi/antenna.rs b/packages/backend/native-utils/src/model/schema/napi/antenna.rs
similarity index 78%
rename from packages/backend/native-utils/crates/model/src/schema/napi/antenna.rs
rename to packages/backend/native-utils/src/model/schema/napi/antenna.rs
index ffb817c123..e5c156efad 100644
--- a/packages/backend/native-utils/crates/model/src/schema/napi/antenna.rs
+++ b/packages/backend/native-utils/src/model/schema/napi/antenna.rs
@@ -1,9 +1,12 @@
-use napi::bindgen_prelude::{FromNapiValue, ToNapiValue};
+use napi::bindgen_prelude::*;
 use napi_derive::napi;
 use parse_display::FromStr;
 use schemars::JsonSchema;
 use utoipa::ToSchema;
 
+use crate::model::entity::antenna::Model;
+use crate::model::repository::Repository;
+
 #[napi]
 #[derive(Clone, Debug, PartialEq, Eq, JsonSchema, ToSchema)]
 #[serde(rename_all = "camelCase")]
@@ -44,3 +47,11 @@ pub enum AntennaSrc {
     Group,
     Instances,
 }
+
+#[napi]
+impl Antenna {
+    #[napi]
+    pub async fn pack_by_id(id: String) -> napi::Result<Antenna> {
+        Model::pack_by_id(id).await.map_err(Into::into)
+    }
+}
diff --git a/packages/backend/native-utils/crates/util/src/id.rs b/packages/backend/native-utils/src/util/id.rs
similarity index 97%
rename from packages/backend/native-utils/crates/util/src/id.rs
rename to packages/backend/native-utils/src/util/id.rs
index d3c5809ea5..98dd63c4e5 100644
--- a/packages/backend/native-utils/crates/util/src/id.rs
+++ b/packages/backend/native-utils/src/util/id.rs
@@ -25,7 +25,7 @@ mod unit_test {
     use pretty_assertions::{assert_eq, assert_ne};
     use std::thread;
 
-    use crate::id;
+    use crate::util::id;
 
     #[test]
     fn can_generate_unique_ids() {
diff --git a/packages/backend/native-utils/crates/util/src/lib.rs b/packages/backend/native-utils/src/util/mod.rs
similarity index 100%
rename from packages/backend/native-utils/crates/util/src/lib.rs
rename to packages/backend/native-utils/src/util/mod.rs
diff --git a/packages/backend/native-utils/crates/util/src/random.rs b/packages/backend/native-utils/src/util/random.rs
similarity index 100%
rename from packages/backend/native-utils/crates/util/src/random.rs
rename to packages/backend/native-utils/src/util/random.rs
diff --git a/packages/backend/native-utils/crates/model/tests/common.rs b/packages/backend/native-utils/tests/common.rs
similarity index 96%
rename from packages/backend/native-utils/crates/model/tests/common.rs
rename to packages/backend/native-utils/tests/common.rs
index 554a8ca735..775b372126 100644
--- a/packages/backend/native-utils/crates/model/tests/common.rs
+++ b/packages/backend/native-utils/tests/common.rs
@@ -1,20 +1,19 @@
 #![cfg(not(feature = "napi"))]
 
-extern crate model;
-
-mod repository;
+mod model;
 
 use chrono::Utc;
-use model::entity;
-use model::entity::sea_orm_active_enums::AntennaSrcEnum;
+use native_utils::database;
+use native_utils::model::entity;
+use native_utils::model::entity::sea_orm_active_enums::AntennaSrcEnum;
+use native_utils::util::{
+    id::{create_id, init_id},
+    random::gen_string,
+};
 use sea_orm::{
     sea_query::TableCreateStatement, ActiveModelTrait, ConnectionTrait, DbBackend, DbConn, DbErr,
     EntityTrait, IntoActiveModel, TransactionTrait,
 };
-use util::{
-    id::{create_id, init_id},
-    random::gen_string,
-};
 
 /// Insert predefined entries in the database.
 async fn prepare() {
diff --git a/packages/backend/native-utils/tests/model/mod.rs b/packages/backend/native-utils/tests/model/mod.rs
new file mode 100644
index 0000000000..a35bac056b
--- /dev/null
+++ b/packages/backend/native-utils/tests/model/mod.rs
@@ -0,0 +1 @@
+mod repository;
diff --git a/packages/backend/native-utils/crates/model/tests/repository/mod.rs b/packages/backend/native-utils/tests/model/repository.rs
similarity index 100%
rename from packages/backend/native-utils/crates/model/tests/repository/mod.rs
rename to packages/backend/native-utils/tests/model/repository.rs
diff --git a/packages/backend/native-utils/crates/model/tests/repository/antenna.rs b/packages/backend/native-utils/tests/model/repository/antenna.rs
similarity index 97%
rename from packages/backend/native-utils/crates/model/tests/repository/antenna.rs
rename to packages/backend/native-utils/tests/model/repository/antenna.rs
index 2da1e59d44..a370073987 100644
--- a/packages/backend/native-utils/crates/model/tests/repository/antenna.rs
+++ b/packages/backend/native-utils/tests/model/repository/antenna.rs
@@ -1,4 +1,6 @@
 mod int_test {
+    use native_utils::{database, model};
+
     use model::{
         entity::{antenna, user},
         repository::Repository,