diff --git a/Cargo.lock b/Cargo.lock
index d02558c..7a979d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,274 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
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+
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+ "jack",
+ "lib",
+]
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+ "libc",
+ "r-efi",
+ "wasip2",
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+ "jack-sys",
+ "lazy_static",
+ "libc",
+ "log",
+]
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+ "bitflags 1.3.2",
+ "lazy_static",
+ "libc",
+ "libloading",
+ "log",
+ "pkg-config",
+]
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 [[package]]
 name = "termix"
 version = "0.1.0"
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diff --git a/Cargo.toml b/Cargo.toml
index 6a448db..80c9508 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,4 +3,8 @@ name = "termix"
 version = "0.1.0"
 edition = "2024"
 
+[workspace]
+resolver = "3"
+members = ["engine", "lib"]
+
 [dependencies]
diff --git a/engine/Cargo.toml b/engine/Cargo.toml
new file mode 100644
index 0000000..3e2f71e
--- /dev/null
+++ b/engine/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "engine"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+jack = "0.13.3"
+lib = { path = "../lib/" }
diff --git a/engine/src/main.rs b/engine/src/main.rs
new file mode 100644
index 0000000..0fca070
--- /dev/null
+++ b/engine/src/main.rs
@@ -0,0 +1,18 @@
+use lib;
+
+fn main() {
+    /*
+     * Engine should run and wait for commands,
+     * but currently I need to implement the multitrack
+     * audio player somehow
+     *
+     *
+     * for track in tracks {
+     *   if track.is_region_playing(now: time) {
+     *     let current_region = track.get_current_region(now: time)
+     *     let audio = current_region.get_data(now: time)
+     *   }
+     * }
+     */
+    println!("Hello, world!");
+}
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
new file mode 100644
index 0000000..6b9fdf7
--- /dev/null
+++ b/lib/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "lib"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+uuid = { version = "1.18.1", features = ["v4"] }
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
new file mode 100644
index 0000000..619f897
--- /dev/null
+++ b/lib/src/lib.rs
@@ -0,0 +1,5 @@
+mod metadata;
+mod project;
+
+mod region;
+mod track;
diff --git a/lib/src/metadata.rs b/lib/src/metadata.rs
new file mode 100644
index 0000000..dd38dde
--- /dev/null
+++ b/lib/src/metadata.rs
@@ -0,0 +1,25 @@
+use uuid::Uuid;
+
+pub(crate) struct Metadata {
+    id: Uuid,
+    name: String,
+}
+
+impl Metadata {
+    pub(crate) fn new(name: String) -> Self {
+        let id = Uuid::new_v4();
+        Self { id, name }
+    }
+
+    pub(crate) fn id(&self) -> Uuid {
+        self.id
+    }
+
+    pub(crate) fn name(&self) -> &str {
+        &self.name
+    }
+
+    pub(crate) fn set_name(&mut self, name: String) {
+        self.name = name;
+    }
+}
diff --git a/lib/src/project.rs b/lib/src/project.rs
new file mode 100644
index 0000000..c8bb7ea
--- /dev/null
+++ b/lib/src/project.rs
@@ -0,0 +1,7 @@
+use crate::{region::Region, track::Track};
+
+pub(crate) struct Project {
+    name: String,
+    tracks: Vec<Track>,
+    regions: Vec<Region>,
+}
diff --git a/lib/src/region.rs b/lib/src/region.rs
new file mode 100644
index 0000000..04ecdb2
--- /dev/null
+++ b/lib/src/region.rs
@@ -0,0 +1,11 @@
+use crate::metadata::Metadata;
+
+pub(crate) struct Region {
+    metadata: Metadata,
+    // Position of the track on the track
+    starts_at: u64,
+    // From which point of the audio source the region starts
+    plays_from: u64,
+    // Duration of the region after plays_from
+    duration: u64,
+}
diff --git a/lib/src/track.rs b/lib/src/track.rs
new file mode 100644
index 0000000..f68686e
--- /dev/null
+++ b/lib/src/track.rs
@@ -0,0 +1,15 @@
+use crate::metadata::Metadata;
+
+use super::region::Region;
+
+pub(crate) enum TrackType {
+    Audio,
+    Midi,
+}
+
+pub(crate) struct Track {
+    metadata: Metadata,
+    track_type: TrackType,
+}
+
+pub(crate) struct TrackStatus {}