refactor: remove once_cell dependency

Cargo.toml

@@ -7,7 +7,7 @@ repository = "https://github.com/vitri-ent/vmc"
 documentation = "https://docs.rs/vmc"
 readme = "README.md"
 edition = "2021"
-keywords = [ "virtual-motion-capture", "osc" ]
+keywords = [ "osc" ]
 categories = [ "network-programming", "asynchronous" ]
 authors = [
  "Carson M. <[email protected]>"
@@ -25,7 +25,6 @@ serde = { version = "1.0", optional = true, features = [ "derive" ] }
 tokio = { version = "1.30", features = [ "net" ] }
 tokio-stream = "0.1"
 thiserror = "1.0"
-once_cell = "1.15"
 
 [dev-dependencies]
 tokio = { version = "1.30", features = [ "net", "macros", "rt-multi-thread" ] }

src/message.rs

@@ -1,9 +1,8 @@
 //! Submodule for Virtual Motion Capture-specific messages.
 
-use std::{str::FromStr, time::Instant};
+use std::{str::FromStr, sync::OnceLock, time::Instant};
 
 use nalgebra::{Quaternion, Scale3, UnitQuaternion, Vector3};
-use once_cell::sync::Lazy;
 
 use crate::{osc::OSCMessage, IntoOSCMessage, OSCPacket, OSCType, VMCError, VMCResult};
 
@@ -724,8 +723,8 @@ impl Time {
 
  /// Creates a new time message, automatically tracking relative time using a monotonic clock.
  pub fn elapsed() -> Self {
- static EPOCH: Lazy<Instant> = Lazy::new(Instant::now);
- Self(EPOCH.elapsed().as_secs_f32())
+ static EPOCH: OnceLock<Instant> = OnceLock::new();
+ Self(EPOCH.get_or_init(Instant::now).elapsed().as_secs_f32())
  }
 }