diff --git a/Cargo.toml b/Cargo.toml
index 7a5e83b..beae4d8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,12 @@ members = [
 [dependencies]
 # local
 mps-interpreter = { version = "0.2.0", path = "./mps-interpreter" }
-mps-player = { version = "0.2.0", path = "./mps-player" }
 # external
 clap = { version = "3.0", features = ["derive"] }
+
+[target.'cfg(not(target_os = "linux"))'.dependencies]
+mps-player = { version = "0.2.0", path = "./mps-player", default-features = false }
+
+[target.'cfg(target_os = "linux")'.dependencies]
+# TODO fix need to specify OS-specific dependency of mps-player
+mps-player = { version = "0.2.0", path = "./mps-player", features = ["mpris-player"] }
diff --git a/mps-interpreter/src/processing/filesystem.rs b/mps-interpreter/src/processing/filesystem.rs
index e89398c..c561011 100644
--- a/mps-interpreter/src/processing/filesystem.rs
+++ b/mps-interpreter/src/processing/filesystem.rs
@@ -9,7 +9,7 @@ use super::OpGetter;
 use crate::lang::RuntimeError;
 use crate::MpsMusicItem;
 
-const DEFAULT_REGEX: &str = r"/(?P<artist>[^/]+)/(?P<album>[^/]+)/(?:(?:(?P<disc>\d+)\s+)?(?P<track>\d+)\.?\s+)?(?P<title>[^/]+)\.[a-zA-Z0-9]+$";
+const DEFAULT_REGEX: &str = r"/(?P<artist>[^/]+)/(?P<album>[^/]+)/(?:(?:(?P<disc>\d+)\s+)?(?P<track>\d+)\.?\s+)?(?P<title>[^/]+)\.(?P<format>(?:mp3)|(?:wav)|(?:ogg)|(?:flac)|(?:mp4)|(?:aac))$";
 
 const DEFAULT_VEC_CACHE_SIZE: usize = 4;
 
diff --git a/mps-player/Cargo.toml b/mps-player/Cargo.toml
index 588054c..2a2bc78 100644
--- a/mps-player/Cargo.toml
+++ b/mps-player/Cargo.toml
@@ -12,6 +12,19 @@ m3u8-rs = { version = "^3.0.0" }
 # local
 mps-interpreter = { path = "../mps-interpreter", version = "0.2.0" }
 
-[target.'cfg(unix)'.dependencies]
+[target.'cfg(target_os = "linux")'.dependencies]
 #dbus = { version = "^0.9" }
-mpris-player = { version = "^0.6.1", path = "../mpris-player" }
+mpris-player = { version = "^0.6.1", path = "../mpris-player", optional = true }
+
+[features]
+default = ["os-controls"]
+os-controls = []
+
+# I wish this worked...
+#[target.'cfg(not(target_os = "linux"))'.features]
+#default = ["os-controls"]
+#os-controls = []
+
+#[target.'cfg(target_os = "linux")'.features]
+#default = ["os-controls"]
+#os-controls = ["mpris-player"]
diff --git a/mps-player/src/os_controls.rs b/mps-player/src/os_controls.rs
index 7de77fb..74bcbc2 100644
--- a/mps-player/src/os_controls.rs
+++ b/mps-player/src/os_controls.rs
@@ -1,11 +1,12 @@
-#[cfg(unix)]
+#[allow(unused_imports)]
 use std::sync::mpsc::{channel, Sender, Receiver};
-#[cfg(unix)]
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 use std::thread::JoinHandle;
 
-#[cfg(unix)]
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 use mpris_player::{MprisPlayer, PlaybackStatus, Metadata};
 
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 use mps_interpreter::MpsMusicItem;
 
 //use super::MpsController;
@@ -13,25 +14,32 @@ use super::player_wrapper::{ControlAction, PlaybackAction};
 
 /// OS-specific APIs for media controls.
 /// Currently only Linux (dbus) is supported.
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 pub struct SystemControlWrapper {
     control: Sender<ControlAction>,
-    #[cfg(target_os = "linux")]
     dbus_handle: Option<JoinHandle<()>>, //std::sync::Arc<MprisPlayer>,
-    #[cfg(target_os = "linux")]
     dbus_ctrl: Option<Sender<DbusControl>>,
-    #[cfg(target_os = "linux")]
     playback_event_handler: Option<JoinHandle<()>>,
-    #[cfg(target_os = "linux")]
     playback_event_handler_killer: Option<Sender<()>>,
+
 }
 
-#[cfg(target_os = "linux")]
+/// OS-specific APIs for media controls.
+/// Currently only Linux (dbus) is supported.
+#[cfg(not(feature = "os-controls"))]
+pub struct SystemControlWrapper {
+    #[allow(dead_code)]
+    control: Sender<ControlAction>,
+    playback_receiver: Option<Receiver<PlaybackAction>>,
+}
+
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 enum DbusControl {
     Die,
     SetMetadata(Metadata),
 }
 
-#[cfg(target_os = "linux")]
+#[cfg(all(target_os = "linux", feature = "os-controls"))]
 impl SystemControlWrapper {
     pub fn new(control: Sender<ControlAction>) -> Self {
         Self {
@@ -203,13 +211,18 @@ impl SystemControlWrapper {
     }
 }
 
-#[cfg(not(any(target_os = "linux")))]
+#[cfg(not(feature = "os-controls"))]
 impl SystemControlWrapper {
     pub fn new(control: Sender<ControlAction>) -> Self {
-        Self { control: control }
+        Self {
+            control: control,
+            playback_receiver: None
+        }
     }
 
-    pub fn init(&mut self, _playback: Receiver<PlaybackAction>) {}
+    pub fn init(&mut self, playback: Receiver<PlaybackAction>) {
+        self.playback_receiver = Some(playback);
+    }
 
     pub fn exit(self) {}
 }