diff --git a/Cargo.toml b/Cargo.toml
index c774edac..34c44d23 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,26 +1,5 @@
-[package]
-name = "promkit"
-version = "0.3.3"
-authors = ["ynqa <un.pensiero.vano@gmail.com>"]
-edition = "2021"
-description = "A toolkit for building your own interactive command-line tools"
-repository = "https://github.com/ynqa/promkit"
-license = "MIT"
-readme = "README.md"
-
-[lib]
-name = "promkit"
-path = "src/lib.rs"
-
-[dependencies]
-anyhow = "1.0.81"
-crossterm = { version = "0.27.0", features = ["use-dev-tty"] }
-indexmap = "2.2.3"
-radix_trie = "0.2.1"
-serde = { version = "1.0.197" }
-serde_json = { version = "1.0.114", features = ["preserve_order"] }
-thiserror = "1.0.50"
-unicode-width = "0.1.8"
-
-[dev-dependencies]
-strip-ansi-escapes = "0.2.0"
+[workspace]
+resolver = "2"
+members = [
+  "promkit",
+]
diff --git a/README.md b/README.md
index b7ce3979..3712ef1b 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Put the package in your `Cargo.toml`.
 
 ```toml
 [dependencies]
-promkit = "0.3.3"
+promkit = "0.3.4"
 ```
 
 ## Features
diff --git a/promkit/Cargo.toml b/promkit/Cargo.toml
new file mode 100644
index 00000000..46b77b34
--- /dev/null
+++ b/promkit/Cargo.toml
@@ -0,0 +1,26 @@
+[package]
+name = "promkit"
+version = "0.3.4"
+authors = ["ynqa <un.pensiero.vano@gmail.com>"]
+edition = "2021"
+description = "A toolkit for building your own interactive command-line tools"
+repository = "https://github.com/ynqa/promkit"
+license = "MIT"
+readme = "README.md"
+
+[lib]
+name = "promkit"
+path = "src/lib.rs"
+
+[dependencies]
+anyhow = "1.0.81"
+crossterm = { version = "0.27.0", features = ["use-dev-tty"] }
+indexmap = "2.2.3"
+radix_trie = "0.2.1"
+serde = { version = "1.0.197" }
+serde_json = { version = "1.0.114", features = ["preserve_order"] }
+thiserror = "1.0.50"
+unicode-width = "0.1.8"
+
+[dev-dependencies]
+strip-ansi-escapes = "0.2.0"
diff --git a/src/core.rs b/promkit/src/core.rs
similarity index 100%
rename from src/core.rs
rename to promkit/src/core.rs
diff --git a/src/core/checkbox.rs b/promkit/src/core/checkbox.rs
similarity index 100%
rename from src/core/checkbox.rs
rename to promkit/src/core/checkbox.rs
diff --git a/src/core/checkbox/render.rs b/promkit/src/core/checkbox/render.rs
similarity index 100%
rename from src/core/checkbox/render.rs
rename to promkit/src/core/checkbox/render.rs
diff --git a/src/core/cursor.rs b/promkit/src/core/cursor.rs
similarity index 100%
rename from src/core/cursor.rs
rename to promkit/src/core/cursor.rs
diff --git a/src/core/cursor/composite.rs b/promkit/src/core/cursor/composite.rs
similarity index 100%
rename from src/core/cursor/composite.rs
rename to promkit/src/core/cursor/composite.rs
diff --git a/src/core/cursor/len.rs b/promkit/src/core/cursor/len.rs
similarity index 100%
rename from src/core/cursor/len.rs
rename to promkit/src/core/cursor/len.rs
diff --git a/src/core/json.rs b/promkit/src/core/json.rs
similarity index 100%
rename from src/core/json.rs
rename to promkit/src/core/json.rs
diff --git a/src/core/json/node.rs b/promkit/src/core/json/node.rs
similarity index 100%
rename from src/core/json/node.rs
rename to promkit/src/core/json/node.rs
diff --git a/src/core/json/render.rs b/promkit/src/core/json/render.rs
similarity index 100%
rename from src/core/json/render.rs
rename to promkit/src/core/json/render.rs
diff --git a/src/core/listbox.rs b/promkit/src/core/listbox.rs
similarity index 100%
rename from src/core/listbox.rs
rename to promkit/src/core/listbox.rs
diff --git a/src/core/listbox/render.rs b/promkit/src/core/listbox/render.rs
similarity index 100%
rename from src/core/listbox/render.rs
rename to promkit/src/core/listbox/render.rs
diff --git a/src/core/text.rs b/promkit/src/core/text.rs
similarity index 100%
rename from src/core/text.rs
rename to promkit/src/core/text.rs
diff --git a/src/core/text_editor.rs b/promkit/src/core/text_editor.rs
similarity index 100%
rename from src/core/text_editor.rs
rename to promkit/src/core/text_editor.rs
diff --git a/src/core/text_editor/history.rs b/promkit/src/core/text_editor/history.rs
similarity index 100%
rename from src/core/text_editor/history.rs
rename to promkit/src/core/text_editor/history.rs
diff --git a/src/core/text_editor/render.rs b/promkit/src/core/text_editor/render.rs
similarity index 100%
rename from src/core/text_editor/render.rs
rename to promkit/src/core/text_editor/render.rs
diff --git a/src/core/tree.rs b/promkit/src/core/tree.rs
similarity index 100%
rename from src/core/tree.rs
rename to promkit/src/core/tree.rs
diff --git a/src/core/tree/node.rs b/promkit/src/core/tree/node.rs
similarity index 100%
rename from src/core/tree/node.rs
rename to promkit/src/core/tree/node.rs
diff --git a/src/core/tree/render.rs b/promkit/src/core/tree/render.rs
similarity index 100%
rename from src/core/tree/render.rs
rename to promkit/src/core/tree/render.rs
diff --git a/src/engine.rs b/promkit/src/engine.rs
similarity index 96%
rename from src/engine.rs
rename to promkit/src/engine.rs
index 0689cae6..03921a55 100644
--- a/src/engine.rs
+++ b/promkit/src/engine.rs
@@ -61,6 +61,10 @@ impl<W: Write> Engine<W> {
         queue!(self.out, Clear(ClearType::FromCursorDown)).map_err(Error::from)
     }
 
+    pub fn clear_current_line(&mut self) -> Result {
+        queue!(self.out, Clear(ClearType::CurrentLine)).map_err(Error::from)
+    }
+
     /// Writes a string to the terminal.
     ///
     /// # Arguments
diff --git a/src/error.rs b/promkit/src/error.rs
similarity index 100%
rename from src/error.rs
rename to promkit/src/error.rs
diff --git a/src/grapheme.rs b/promkit/src/grapheme.rs
similarity index 100%
rename from src/grapheme.rs
rename to promkit/src/grapheme.rs
diff --git a/src/grapheme/styled.rs b/promkit/src/grapheme/styled.rs
similarity index 98%
rename from src/grapheme/styled.rs
rename to promkit/src/grapheme/styled.rs
index ed417eac..2b85616f 100644
--- a/src/grapheme/styled.rs
+++ b/promkit/src/grapheme/styled.rs
@@ -93,6 +93,12 @@ impl fmt::Debug for StyledGraphemes {
     }
 }
 
+impl ToString for StyledGraphemes {
+    fn to_string(&self) -> String {
+        self.iter().map(|g| g.ch).collect()
+    }
+}
+
 impl StyledGraphemes {
     pub fn from_str<S: AsRef<str>>(string: S, style: ContentStyle) -> Self {
         string
diff --git a/src/keymap.rs b/promkit/src/keymap.rs
similarity index 100%
rename from src/keymap.rs
rename to promkit/src/keymap.rs
diff --git a/src/lib.rs b/promkit/src/lib.rs
similarity index 93%
rename from src/lib.rs
rename to promkit/src/lib.rs
index 34bff98d..216befd4 100644
--- a/src/lib.rs
+++ b/promkit/src/lib.rs
@@ -11,7 +11,7 @@
 //!
 //! ```toml
 //! [dependencies]
-//! promkit = "0.3.3"
+//! promkit = "0.3.4"
 //! ```
 //!
 //! ## Features
@@ -19,13 +19,13 @@
 //! - Support cross-platform both UNIX and Windows owing to [crossterm](https://github.com/crossterm-rs/crossterm)
 //! - Various building methods
 //!   - Preset; Support for quickly setting up a UI by providing simple parameters.
-//!     - [Readline](https://github.com/ynqa/promkit/tree/v0.3.3#readline)
-//!     - [Confirm](https://github.com/ynqa/promkit/tree/v0.3.3#confirm)
-//!     - [Password](https://github.com/ynqa/promkit/tree/v0.3.3#password)
-//!     - [Select](https://github.com/ynqa/promkit/tree/v0.3.3#select)
-//!     - [QuerySelect](https://github.com/ynqa/promkit/tree/v0.3.3#queryselect)
-//!     - [Checkbox](https://github.com/ynqa/promkit/tree/v0.3.3#checkbox)
-//!     - [Tree](https://github.com/ynqa/promkit/tree/v0.3.3#tree)
+//!     - [Readline](https://github.com/ynqa/promkit/tree/v0.3.4#readline)
+//!     - [Confirm](https://github.com/ynqa/promkit/tree/v0.3.4#confirm)
+//!     - [Password](https://github.com/ynqa/promkit/tree/v0.3.4#password)
+//!     - [Select](https://github.com/ynqa/promkit/tree/v0.3.4#select)
+//!     - [QuerySelect](https://github.com/ynqa/promkit/tree/v0.3.4#queryselect)
+//!     - [Checkbox](https://github.com/ynqa/promkit/tree/v0.3.4#checkbox)
+//!     - [Tree](https://github.com/ynqa/promkit/tree/v0.3.4#tree)
 //!   - Combining various UI components.
 //!     - They are provided with the same interface, allowing users to choose and
 //!       assemble them according to their preferences.
@@ -39,7 +39,7 @@
 //!
 //! ## Examples/Demos
 //!
-//! See [here](https://github.com/ynqa/promkit/tree/v0.3.2#examplesdemos)
+//! See [here](https://github.com/ynqa/promkit/tree/v0.3.4#examplesdemos)
 //!
 //! ## Why *promkit*?
 //!
@@ -97,10 +97,10 @@ pub use serde_json;
 
 mod core;
 pub use core::*;
-mod engine;
+pub mod engine;
 mod error;
 pub use error::{Error, Result};
-mod grapheme;
+pub mod grapheme;
 pub mod keymap;
 mod macros;
 pub mod pane;
@@ -181,7 +181,7 @@ pub trait AsAny {
 /// # Returns
 ///
 /// Returns a `Result` with a `PromptSignal`, indicating the next action for the prompt.
-type DynEvaluator = dyn Fn(&Event, &mut Box<dyn Renderer>) -> Result<PromptSignal>;
+pub type DynEvaluator = dyn Fn(&Event, &mut Box<dyn Renderer>) -> Result<PromptSignal>;
 
 /// Type alias for a result producer function.
 ///
@@ -196,7 +196,7 @@ type DynEvaluator = dyn Fn(&Event, &mut Box<dyn Renderer>) -> Result<PromptSigna
 /// # Returns
 ///
 /// Returns a `Result` containing the final output of the prompt.
-type ResultProducer<T> = fn(&dyn Renderer) -> Result<T>;
+pub type ResultProducer<T> = fn(&dyn Renderer) -> Result<T>;
 
 /// Represents a customizable prompt that can handle user input and produce a result.
 ///
diff --git a/src/macros.rs b/promkit/src/macros.rs
similarity index 100%
rename from src/macros.rs
rename to promkit/src/macros.rs
diff --git a/src/pane.rs b/promkit/src/pane.rs
similarity index 99%
rename from src/pane.rs
rename to promkit/src/pane.rs
index f09923b8..a0622014 100644
--- a/src/pane.rs
+++ b/promkit/src/pane.rs
@@ -1,5 +1,6 @@
 use crate::grapheme::StyledGraphemes;
 
+#[derive(Clone)]
 pub struct Pane {
     /// The layout of graphemes within the pane.
     /// This vector stores the styled graphemes that make up the content of the pane.
diff --git a/src/preset.rs b/promkit/src/preset.rs
similarity index 100%
rename from src/preset.rs
rename to promkit/src/preset.rs
diff --git a/src/preset/checkbox.rs b/promkit/src/preset/checkbox.rs
similarity index 100%
rename from src/preset/checkbox.rs
rename to promkit/src/preset/checkbox.rs
diff --git a/src/preset/checkbox/keymap.rs b/promkit/src/preset/checkbox/keymap.rs
similarity index 100%
rename from src/preset/checkbox/keymap.rs
rename to promkit/src/preset/checkbox/keymap.rs
diff --git a/src/preset/checkbox/render.rs b/promkit/src/preset/checkbox/render.rs
similarity index 100%
rename from src/preset/checkbox/render.rs
rename to promkit/src/preset/checkbox/render.rs
diff --git a/src/preset/json.rs b/promkit/src/preset/json.rs
similarity index 100%
rename from src/preset/json.rs
rename to promkit/src/preset/json.rs
diff --git a/src/preset/json/keymap.rs b/promkit/src/preset/json/keymap.rs
similarity index 100%
rename from src/preset/json/keymap.rs
rename to promkit/src/preset/json/keymap.rs
diff --git a/src/preset/json/render.rs b/promkit/src/preset/json/render.rs
similarity index 100%
rename from src/preset/json/render.rs
rename to promkit/src/preset/json/render.rs
diff --git a/src/preset/listbox.rs b/promkit/src/preset/listbox.rs
similarity index 100%
rename from src/preset/listbox.rs
rename to promkit/src/preset/listbox.rs
diff --git a/src/preset/listbox/keymap.rs b/promkit/src/preset/listbox/keymap.rs
similarity index 100%
rename from src/preset/listbox/keymap.rs
rename to promkit/src/preset/listbox/keymap.rs
diff --git a/src/preset/listbox/render.rs b/promkit/src/preset/listbox/render.rs
similarity index 100%
rename from src/preset/listbox/render.rs
rename to promkit/src/preset/listbox/render.rs
diff --git a/src/preset/query_selector.rs b/promkit/src/preset/query_selector.rs
similarity index 100%
rename from src/preset/query_selector.rs
rename to promkit/src/preset/query_selector.rs
diff --git a/src/preset/query_selector/keymap.rs b/promkit/src/preset/query_selector/keymap.rs
similarity index 100%
rename from src/preset/query_selector/keymap.rs
rename to promkit/src/preset/query_selector/keymap.rs
diff --git a/src/preset/query_selector/render.rs b/promkit/src/preset/query_selector/render.rs
similarity index 100%
rename from src/preset/query_selector/render.rs
rename to promkit/src/preset/query_selector/render.rs
diff --git a/src/preset/readline.rs b/promkit/src/preset/readline.rs
similarity index 100%
rename from src/preset/readline.rs
rename to promkit/src/preset/readline.rs
diff --git a/src/preset/readline/confirm.rs b/promkit/src/preset/readline/confirm.rs
similarity index 100%
rename from src/preset/readline/confirm.rs
rename to promkit/src/preset/readline/confirm.rs
diff --git a/src/preset/readline/keymap.rs b/promkit/src/preset/readline/keymap.rs
similarity index 100%
rename from src/preset/readline/keymap.rs
rename to promkit/src/preset/readline/keymap.rs
diff --git a/src/preset/readline/password.rs b/promkit/src/preset/readline/password.rs
similarity index 100%
rename from src/preset/readline/password.rs
rename to promkit/src/preset/readline/password.rs
diff --git a/src/preset/readline/render.rs b/promkit/src/preset/readline/render.rs
similarity index 100%
rename from src/preset/readline/render.rs
rename to promkit/src/preset/readline/render.rs
diff --git a/src/preset/tree.rs b/promkit/src/preset/tree.rs
similarity index 100%
rename from src/preset/tree.rs
rename to promkit/src/preset/tree.rs
diff --git a/src/preset/tree/keymap.rs b/promkit/src/preset/tree/keymap.rs
similarity index 100%
rename from src/preset/tree/keymap.rs
rename to promkit/src/preset/tree/keymap.rs
diff --git a/src/preset/tree/render.rs b/promkit/src/preset/tree/render.rs
similarity index 100%
rename from src/preset/tree/render.rs
rename to promkit/src/preset/tree/render.rs
diff --git a/src/snapshot.rs b/promkit/src/snapshot.rs
similarity index 100%
rename from src/snapshot.rs
rename to promkit/src/snapshot.rs
diff --git a/src/style.rs b/promkit/src/style.rs
similarity index 100%
rename from src/style.rs
rename to promkit/src/style.rs
diff --git a/src/suggest.rs b/promkit/src/suggest.rs
similarity index 100%
rename from src/suggest.rs
rename to promkit/src/suggest.rs
diff --git a/src/terminal.rs b/promkit/src/terminal.rs
similarity index 100%
rename from src/terminal.rs
rename to promkit/src/terminal.rs
diff --git a/src/validate.rs b/promkit/src/validate.rs
similarity index 100%
rename from src/validate.rs
rename to promkit/src/validate.rs