diff --git a/binaries/daemon/src/spawn.rs b/binaries/daemon/src/spawn.rs
index 113db901..d192c3ec 100644
--- a/binaries/daemon/src/spawn.rs
+++ b/binaries/daemon/src/spawn.rs
@@ -22,6 +22,7 @@ use dora_message::{
     common::{LogLevel, LogMessage},
     daemon_to_coordinator::{DataMessage, NodeExitStatus, Timestamped},
     daemon_to_node::{NodeConfig, RuntimeConfig},
+    descriptor::EnvValue,
     id::NodeId,
 };
 use dora_node_api::{
@@ -31,6 +32,7 @@ use dora_node_api::{
 };
 use eyre::{ContextCompat, WrapErr, bail};
 use std::{
+    collections::BTreeMap,
     future::Future,
     path::{Path, PathBuf},
     process::Stdio,
@@ -127,7 +129,8 @@ impl Spawner {
         let (command, error_msg) = match &node.kind {
             dora_core::descriptor::CoreNodeKind::Custom(n) => {
                 let mut command =
-                    path_spawn_command(&node_working_dir, self.uv, logger, n, true).await?;
+                    path_spawn_command(&node_working_dir, self.uv, logger, n, &node.env, true)
+                        .await?;
 
                 if let Some(command) = &mut command {
                     command.current_dir(&node_working_dir);
@@ -626,6 +629,7 @@ async fn path_spawn_command(
     uv: bool,
     logger: &mut NodeLogger<'_>,
     node: &dora_core::descriptor::CustomNode,
+    env: &Option<BTreeMap<String, EnvValue>>,
     permit_url: bool,
 ) -> eyre::Result<Option<tokio::process::Command>> {
     let cmd = match node.path.as_str() {
@@ -652,7 +656,44 @@ async fn path_spawn_command(
                     .await
                     .wrap_err("failed to download custom node")?
             } else {
-                resolve_path(source, working_dir)
+                let replacements: Vec<eyre::Result<(String, String)>> = source
+                    .find('$')
+                    .map(|start| {
+                        let end = source[start..].find('/').unwrap_or(source.len());
+                        let var = &source[start + 1..start + end];
+                        if let Some(envs) = env {
+                            if let Some(val) = envs.get(var) {
+                                Ok((var.to_string(), val.to_string()))
+                            } else {
+                                eyre::bail!(
+                                    "environment variable `{}` for node `{}` not found",
+                                    var,
+                                    source
+                                )
+                            }
+                        } else {
+                            eyre::bail!(
+                                "environment variable `{}` for node `{}` not found",
+                                var,
+                                source
+                            )
+                        }
+                    })
+                    .into_iter()
+                    .collect();
+                let mut source = String::from(source);
+                for kv in replacements.into_iter() {
+                    match kv {
+                        Ok((var, value)) => {
+                            source = source.replace(&format!("${}", var), &value);
+                        }
+                        Err(err) => {
+                            return Err(err);
+                        }
+                    }
+                }
+
+                resolve_path(&source, working_dir)
                     .wrap_err_with(|| format!("failed to resolve node source `{source}`"))?
             };
 
diff --git a/libraries/core/src/build/build_command.rs b/libraries/core/src/build/build_command.rs
index aed83e89..79231611 100644
--- a/libraries/core/src/build/build_command.rs
+++ b/libraries/core/src/build/build_command.rs
@@ -19,12 +19,27 @@ pub fn run_build_command(
 
     let lines = build.lines().collect::<Vec<_>>();
     for build_line in lines {
-        let mut split = build_line.split_whitespace();
+        let quote: Vec<&str> = build_line.split('"').collect();
+        if quote.len() % 2 == 0 {
+            return Err(eyre!(
+                "build command `{build_line}`. quote(s) are not in pair"
+            ));
+        }
+        let mut split_vec: Vec<&str> = vec![];
+        quote.iter().enumerate().for_each(|(i, part)| {
+            if i % 2 == 0 {
+                let mut split_with_white: Vec<&str> = part.split_whitespace().collect();
+                split_vec.append(&mut split_with_white);
+            } else {
+                split_vec.push(part);
+            }
+        });
+        let mut split = split_vec.iter();
 
         let program = split
             .next()
             .ok_or_else(|| eyre!("build command is empty"))?;
-        let mut cmd = if uv && (program == "pip" || program == "pip3") {
+        let mut cmd = if uv && (*program == "pip" || *program == "pip3") {
             let mut cmd = Command::new("uv");
             cmd.arg("pip");
             cmd