diff --git a/Cargo.lock b/Cargo.lock
index 6c24e3e..eea177e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -72,14 +72,22 @@ dependencies = [
 name = "board-builder"
 version = "1.0.0"
 dependencies = [
- "fltk",
  "image",
  "serde",
  "serde_json",
- "state",
  "zip",
 ]
 
+[[package]]
+name = "board-builder-impl-fltk"
+version = "0.1.0"
+dependencies = [
+ "board-builder",
+ "fltk",
+ "image",
+ "state",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.9.1"
diff --git a/Cargo.toml b/Cargo.toml
index c285a1b..f89b24d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,11 +3,14 @@ name = "board-builder"
 version = "1.0.0"
 edition = "2021"
 
-[dependencies]
+[lib]
+crate-type = ["rlib", "cdylib"]
 
-fltk = "1.3.6"
-state = "0.5.3"
+[dependencies]
 serde = { version = "1.0.136", features = ["derive"] }
 serde_json = "1.0.79"
 zip = "0.6.2"
-image = "0.24.2"
\ No newline at end of file
+image = "0.24.2"
+
+[workspace]
+members = ["board-builder-impl-fltk"]
\ No newline at end of file
diff --git a/board-builder-impl-fltk/Cargo.toml b/board-builder-impl-fltk/Cargo.toml
new file mode 100644
index 0000000..0476e0b
--- /dev/null
+++ b/board-builder-impl-fltk/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "board-builder-impl-fltk"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+board-builder = { path = "../" }
+fltk = "1.3.6"
+state = "0.5.3"
+image = "0.24.2"
\ No newline at end of file
diff --git a/src/main.rs b/board-builder-impl-fltk/src/main.rs
similarity index 94%
rename from src/main.rs
rename to board-builder-impl-fltk/src/main.rs
index 9b51d45..f7be611 100644
--- a/src/main.rs
+++ b/board-builder-impl-fltk/src/main.rs
@@ -11,9 +11,8 @@ use state::Storage;
 
 use std::sync::Mutex;
 
-mod board;
-use board::Board;
-use board::{ encode_png, write_board_to_file, read_board_from_file, CoordTransformer };
+use board_builder::Board;
+use board_builder::{ encode_png, write_board_to_file, read_board_from_file, CoordTransformer };
 
 //////////////////// Global State ////////////////////
 // Don't @ me...
@@ -133,9 +132,11 @@ mod dispatch {
     }
 }
 
-impl CoordTransformer<i32> for frame::Frame {
-    fn origin(&self) -> (i32, i32) { (self.x(), self.y()) }
-    fn extremes(&self) -> (i32, i32) { (self.x()+self.w(), self.y()+self.h()) }
+struct FrameView<'a>(&'a frame::Frame);
+
+impl<'a> CoordTransformer<i32> for FrameView<'a> {
+    fn origin(&self) -> (i32, i32) { (self.0.x(), self.0.y()) }
+    fn extremes(&self) -> (i32, i32) { (self.0.x()+self.0.w(), self.0.y()+self.0.h()) }
 }
 
 //////////////////// App State ////////////////////
@@ -249,6 +250,7 @@ fn main() {
 	}
 	// Nodes
 	let board = &state.board;
+	let f = FrameView(f);
 	for (&id, node) in &board.nodes {
 	    // Draw the node
 	    let (x, y) = f.from_coords(node.x, node.y);
@@ -270,6 +272,7 @@ fn main() {
     frame.handle(move |f, e| {
 	match e {
 	    Event::Push => {
+		let f = FrameView(f);
 		let edit_mode = STATE.get().lock().unwrap().edit_mode;
 		let coords = f.to_coords(app::event_x(), app::event_y());
 
diff --git a/src/board.rs b/src/lib.rs
similarity index 100%
rename from src/board.rs
rename to src/lib.rs