diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a109278
--- /dev/null
+++ b/README.md
@@ -0,0 +1,20 @@
+
+build dsp:
+```sh
+cd dsp
+faust2jackconsole -osc mixer.dsp
+```
+
+build frontend:
+```sh
+cd  frontend
+yarn
+yarn build
+```
+
+build and run backend & serve frontend:
+```sh
+cargo run
+```
+
+open http://localhost:8080/index.html
diff --git a/src/spawn.rs b/src/spawn.rs
index 35ed0b7..3950313 100644
--- a/src/spawn.rs
+++ b/src/spawn.rs
@@ -4,6 +4,7 @@ use futures_lite::prelude::*;
 use log::*;
 use regex::Regex;
 
+use std::env;
 use std::io;
 
 #[derive(Debug)]
@@ -16,8 +17,18 @@ pub struct FaustHandle {
 
 impl FaustHandle {
     pub async fn spawn() -> Result<Self, std::io::Error> {
-        let exec = "/home/bit/Code/studiox/studiox-mixer/mixer-jackconsole";
-        let mut child = Command::new(exec)
+        let bin_path = env::var("FAUST_DSP")
+            .expect("Set FAUST_DSP env variable to path to mixer faust executable");
+        let bin_path = if !bin_path.starts_with("/") {
+            format!(
+                "{}/{}",
+                env::current_dir().unwrap().to_str().unwrap(),
+                bin_path
+            )
+        } else {
+            bin_path.to_string()
+        };
+        let mut child = Command::new(bin_path)
             .arg(".")
             .stdout(Stdio::piped())
             // .stderr(Stdio::piped())
diff --git a/src/ws.rs b/src/ws.rs
index 6a1db5f..d9587af 100644
--- a/src/ws.rs
+++ b/src/ws.rs
@@ -3,6 +3,7 @@ use async_std::stream::{Stream, StreamExt};
 use async_std::sync::{Arc, Mutex};
 use async_std::task::{self, JoinHandle};
 use std::collections::HashMap;
+use std::env;
 use std::net::SocketAddr;
 use std::pin::Pin;
 use std::task::{Context, Poll};
@@ -83,9 +84,14 @@ pub fn run(
         }
     });
 
-    app.at("/")
-        .serve_dir("/home/bit/Code/studiox/studiox/frontend/build")
-        .unwrap();
+    let frontend_dir = env::var("FRONTEND_PATH").unwrap_or_else(|_| {
+        format!(
+            "{}/{}",
+            env::current_dir().unwrap().to_str().unwrap(),
+            "frontend/build"
+        )
+    });
+    app.at("/").serve_dir(frontend_dir).unwrap();
 
     app.at("/ws")
         .get(WebSocket::new(move |request, mut stream| {