diff --git a/Cargo.lock b/Cargo.lock
index fec48e3..b8ab707 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -260,7 +260,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "blah"
+name = "blah-types"
 version = "0.0.0"
 dependencies = [
  "bitflags",
@@ -283,7 +283,7 @@ name = "blahctl"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "blah",
+ "blah-types",
  "clap",
  "ed25519-dalek",
  "hex",
@@ -300,7 +300,7 @@ dependencies = [
  "anyhow",
  "axum",
  "axum-extra",
- "blah",
+ "blah-types",
  "clap",
  "ed25519-dalek",
  "futures-util",
diff --git a/Cargo.toml b/Cargo.toml
index 4a8cf36..aea0622 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [workspace]
 resolver = "2"
 members = [
-    ".",
+    "blah-types",
     "blahctl",
     "blahd",
 ]
@@ -14,28 +14,3 @@ print_stderr = "warn"
 print_stdout = "warn"
 todo = "warn"
 unwrap_used = "warn"
-
-[package]
-name = "blah"
-version = "0.0.0"
-edition = "2021"
-
-[dependencies]
-bitflags = "2"
-bitflags_serde_shim = "0.2"
-ed25519-dalek = "2.1"
-hex = { version = "0.4", features = ["serde"] }
-html-escape = "0.2"
-rand = "0.8.5"
-rand_core = "0.6"
-rusqlite = { version = "0.32", optional = true }
-serde = { version = "1", features = ["derive"] }
-serde_jcs = "0.1"
-serde_json = "1"
-serde_with = "3.9.0"
-
-[dev-dependencies]
-expect-test = "1.5.0"
-
-[lints]
-workspace = true
diff --git a/blah-types/Cargo.toml b/blah-types/Cargo.toml
new file mode 100644
index 0000000..8cdcdd4
--- /dev/null
+++ b/blah-types/Cargo.toml
@@ -0,0 +1,24 @@
+[package]
+name = "blah-types"
+version = "0.0.0"
+edition = "2021"
+
+[dependencies]
+bitflags = "2"
+bitflags_serde_shim = "0.2"
+ed25519-dalek = "2.1"
+hex = { version = "0.4", features = ["serde"] }
+html-escape = "0.2"
+rand = "0.8.5"
+rand_core = "0.6"
+rusqlite = { version = "0.32", optional = true }
+serde = { version = "1", features = ["derive"] }
+serde_jcs = "0.1"
+serde_json = "1"
+serde_with = "3.9.0"
+
+[dev-dependencies]
+expect-test = "1.5.0"
+
+[lints]
+workspace = true
diff --git a/src/types.rs b/blah-types/src/lib.rs
similarity index 99%
rename from src/types.rs
rename to blah-types/src/lib.rs
index ffc2168..d24e4ee 100644
--- a/src/types.rs
+++ b/blah-types/src/lib.rs
@@ -1,7 +1,6 @@
 use std::fmt;
 use std::time::SystemTime;
 
-use bitflags::bitflags;
 use bitflags_serde_shim::impl_serde_for_bitflags;
 use ed25519_dalek::{
     Signature, SignatureError, Signer, SigningKey, VerifyingKey, PUBLIC_KEY_LENGTH,
@@ -11,6 +10,10 @@ use rand_core::RngCore;
 use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
 use serde_with::{serde_as, DisplayFromStr};
 
+// Re-export of public dependencies.
+pub use bitflags;
+pub use ed25519_dalek;
+
 /// An opaque server-specific ID for room, chat item, and etc.
 /// It's currently serialized as a string for JavaScript's convenience.
 #[serde_as]
@@ -371,7 +374,7 @@ pub enum RoomAdminOp {
     // TODO: RU
 }
 
-bitflags! {
+bitflags::bitflags! {
     #[derive(Debug, Clone, Copy, PartialEq, Eq)]
     pub struct ServerPermission: u64 {
         const CREATE_ROOM = 1 << 0;
diff --git a/blahctl/Cargo.toml b/blahctl/Cargo.toml
index dada5e3..89e08a6 100644
--- a/blahctl/Cargo.toml
+++ b/blahctl/Cargo.toml
@@ -13,7 +13,7 @@ reqwest = { version = "0.12", features = ["json"] }
 rusqlite = "0.32"
 tokio = { version = "1", features = ["rt", "macros"] }
 
-blah = { path = "..", features = ["rusqlite"] }
+blah-types = { path = "../blah-types", features = ["rusqlite"] }
 
 [lints.clippy]
 dbg_macro = "warn"
diff --git a/blahctl/src/main.rs b/blahctl/src/main.rs
index 78330c4..912ad5a 100644
--- a/blahctl/src/main.rs
+++ b/blahctl/src/main.rs
@@ -3,10 +3,9 @@ use std::path::{Path, PathBuf};
 use std::{fs, io};
 
 use anyhow::{Context, Result};
-use blah::bitflags;
-use blah::types::{
-    get_timestamp, ChatPayload, CreateRoomPayload, Id, MemberPermission, RichText, RoomAttrs,
-    RoomMember, RoomMemberList, ServerPermission, UserKey, WithSig,
+use blah_types::{
+    bitflags, get_timestamp, ChatPayload, CreateRoomPayload, Id, MemberPermission, RichText,
+    RoomAttrs, RoomMember, RoomMemberList, ServerPermission, UserKey, WithSig,
 };
 use ed25519_dalek::pkcs8::spki::der::pem::LineEnding;
 use ed25519_dalek::pkcs8::{DecodePrivateKey, DecodePublicKey, EncodePrivateKey, EncodePublicKey};
diff --git a/blahd/Cargo.toml b/blahd/Cargo.toml
index 508e5b3..aef1968 100644
--- a/blahd/Cargo.toml
+++ b/blahd/Cargo.toml
@@ -27,7 +27,7 @@ tracing = "0.1"
 tracing-subscriber = "0.3"
 url = { version = "2.5.2", features = ["serde"] }
 
-blah = { path = "..", features = ["rusqlite"] }
+blah-types = { path = "../blah-types", features = ["rusqlite"] }
 
 [dev-dependencies]
 rand = "0.8.5"
diff --git a/blahd/src/event.rs b/blahd/src/event.rs
index b9cb849..17dfe65 100644
--- a/blahd/src/event.rs
+++ b/blahd/src/event.rs
@@ -8,7 +8,7 @@ use std::task::{Context, Poll};
 
 use anyhow::{bail, Context as _, Result};
 use axum::extract::ws::{Message, WebSocket};
-use blah::types::{AuthPayload, ChatItem, WithSig};
+use blah_types::{AuthPayload, ChatItem, WithSig};
 use futures_util::future::Either;
 use futures_util::stream::SplitSink;
 use futures_util::{stream_select, SinkExt as _, Stream, StreamExt};
diff --git a/blahd/src/id.rs b/blahd/src/id.rs
index 8618711..2604c70 100644
--- a/blahd/src/id.rs
+++ b/blahd/src/id.rs
@@ -3,7 +3,7 @@
 /// FIXME: Currently we assume no more than one request in a single millisecond.
 use std::time::SystemTime;
 
-use blah::types::Id;
+use blah_types::Id;
 
 pub trait IdExt {
     fn gen() -> Self;
diff --git a/blahd/src/lib.rs b/blahd/src/lib.rs
index 26029d6..606823a 100644
--- a/blahd/src/lib.rs
+++ b/blahd/src/lib.rs
@@ -10,7 +10,7 @@ use axum::response::{IntoResponse, Response};
 use axum::routing::{get, post};
 use axum::{Json, Router};
 use axum_extra::extract::WithRejection as R;
-use blah::types::{
+use blah_types::{
     ChatItem, ChatPayload, CreateRoomPayload, Id, MemberPermission, RoomAdminOp, RoomAdminPayload,
     RoomAttrs, ServerPermission, Signee, UserKey, WithItemId, WithSig,
 };
diff --git a/blahd/src/middleware.rs b/blahd/src/middleware.rs
index 0a6cf7b..6286351 100644
--- a/blahd/src/middleware.rs
+++ b/blahd/src/middleware.rs
@@ -6,7 +6,7 @@ use axum::extract::{FromRef, FromRequest, FromRequestParts, Request};
 use axum::http::{header, request, StatusCode};
 use axum::response::{IntoResponse, Response};
 use axum::{async_trait, Json};
-use blah::types::{AuthPayload, UserKey, WithSig};
+use blah_types::{AuthPayload, UserKey, WithSig};
 use serde::de::DeserializeOwned;
 use serde::{Deserialize, Serialize};
 
diff --git a/blahd/tests/basic.rs b/blahd/tests/basic.rs
index 930cd98..c0aab5c 100644
--- a/blahd/tests/basic.rs
+++ b/blahd/tests/basic.rs
@@ -5,7 +5,7 @@ use std::future::IntoFuture;
 use std::sync::{Arc, LazyLock};
 
 use anyhow::Result;
-use blah::types::{
+use blah_types::{
     get_timestamp, AuthPayload, CreateRoomPayload, Id, MemberPermission, RoomAdminOp,
     RoomAdminPayload, RoomAttrs, RoomMember, RoomMemberList, ServerPermission, UserKey, WithSig,
 };
diff --git a/src/lib.rs b/src/lib.rs
deleted file mode 100644
index cc9a52c..0000000
--- a/src/lib.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-// Re-export of public dependencies.
-pub use bitflags;
-pub use ed25519_dalek;
-
-pub mod types;