diff --git a/debug_adapter_schemas/Dart.json b/debug_adapter_schemas/Dart.json
index c1cd44f..a2cd0e1 100644
--- a/debug_adapter_schemas/Dart.json
+++ b/debug_adapter_schemas/Dart.json
@@ -41,7 +41,7 @@
     },
     "useFvm": {
       "type": "boolean",
-      "description": "Weather to use fvm to run the Dart/Flutter program"
+      "description": "Whether to use fvm to run the Dart/Flutter program"
     },
     "args": {
       "type": "array",
@@ -51,6 +51,32 @@
       },
       "default": []
     },
+    "toolArgs": {
+      "type": "array",
+      "description": "Arguments passed to the Flutter/Dart tool (e.g. --flavor, -d chrome).",
+      "items": {
+        "type": "string"
+      },
+      "default": []
+    },
+    "env": {
+      "type": "object",
+      "description": "Environment variables to set when launching the debug adapter.",
+      "additionalProperties": {
+        "type": "string"
+      }
+    },
+    "flutterMode": {
+      "type": "string",
+      "enum": [
+        "debug",
+        "profile",
+        "release",
+        "test"
+      ],
+      "description": "The Flutter mode to use.",
+      "default": "debug"
+    },
     "device_id": {
       "type": "string",
       "examples": [
@@ -92,4 +118,4 @@
     "adapter"
   ],
   "additionalProperties": false
-}
\ No newline at end of file
+}
diff --git a/languages/dart/tasks.json b/languages/dart/tasks.json
index 472aa43..8234572 100644
--- a/languages/dart/tasks.json
+++ b/languages/dart/tasks.json
@@ -27,8 +27,8 @@
   },
   {
     "label": "fvm flutter run",
-    "command": "fvm flutter",
-    "args": ["run"],
+    "command": "fvm",
+    "args": ["flutter", "run"],
     "tags": ["flutter-main"]
   },
   {
@@ -39,8 +39,8 @@
   },
   {
     "label": "fvm flutter test $ZED_STEM",
-    "command": "fvm flutter",
-    "args": ["test", "$ZED_FILE"],
+    "command": "fvm",
+    "args": ["flutter", "test", "$ZED_FILE"],
     "tags": ["flutter-test-main"]
   },
   {
diff --git a/src/dart.rs b/src/dart.rs
index 66e265c..15fd59f 100644
--- a/src/dart.rs
+++ b/src/dart.rs
@@ -7,6 +7,16 @@ use zed_extension_api::{
     StartDebuggingRequestArguments, StartDebuggingRequestArgumentsRequest, Worktree,
 };
 
+fn tool_binary(debug_mode: &str) -> &'static str {
+    let (os, _) = current_platform();
+    match (debug_mode, os) {
+        ("flutter", Os::Windows) => "flutter.bat",
+        ("flutter", _) => "flutter",
+        (_, Os::Windows) => "dart.bat",
+        (_, _) => "dart",
+    }
+}
+
 struct DartBinary {
     pub path: String,
     pub args: Option<Vec<String>>,
@@ -90,21 +100,10 @@ impl zed::Extension for DartExtension {
         let debug_mode = user_config
             .get("type")
             .and_then(|v| v.as_str())
-            .filter(|s| !s.trim().is_empty()) // Filter out empty strings
+            .filter(|s| !s.trim().is_empty())
             .ok_or_else(|| "type is required and cannot be empty or null".to_string())?;
 
-        let (os, _) = current_platform();
-        let tool = if debug_mode == "flutter" {
-            match os {
-                Os::Windows => "flutter.bat",
-                _ => "flutter",
-            }
-        } else {
-            match os {
-                Os::Windows => "dart.bat",
-                _ => "dart",
-            }
-        };
+        let tool = tool_binary(debug_mode);
 
         let (command, arguments) = if use_fvm {
             (
@@ -138,33 +137,73 @@ impl zed::Extension for DartExtension {
 
         let vm_service_uri = user_config.get("vmServiceUri").and_then(|v| v.as_str());
 
-        let config_json = json!({
-            "type": tool,
+        let stop_on_entry = user_config
+            .get("stopOnEntry")
+            .and_then(|v| v.as_bool())
+            .unwrap_or(false);
+
+        let flutter_mode = user_config
+            .get("flutterMode")
+            .and_then(|v| v.as_str())
+            .unwrap_or("debug");
+
+        let tool_args = user_config
+            .get("toolArgs")
+            .and_then(|v| v.as_array())
+            .map(|arr| {
+                arr.iter()
+                    .filter_map(|v| v.as_str())
+                    .map(|s| s.to_string())
+                    .collect::<Vec<String>>()
+            })
+            .unwrap_or_default();
+
+        let env = user_config
+            .get("env")
+            .and_then(|v| v.as_object())
+            .map(|obj| {
+                obj.iter()
+                    .map(|(k, v)| (k.clone(), v.as_str().unwrap_or_default().to_string()))
+                    .collect::<Vec<(String, String)>>()
+            })
+            .unwrap_or_default();
+
+        // Use debug_mode ("flutter"/"dart") rather than tool binary name so that
+        // the config is correct on all platforms (e.g. not "flutter.bat" on Windows).
+        let mut config_json = json!({
+            "type": debug_mode,
             "request": request,
-            "vmServiceUri": vm_service_uri,
             "program": program,
             "cwd": cwd.clone().unwrap_or_default(),
             "args": args,
-            "flutterMode": "debug",
+            "flutterMode": flutter_mode,
             "deviceId": device_id,
             "platform": platform,
-            "stopOnEntry": false
-        })
-        .to_string();
+            "stopOnEntry": stop_on_entry,
+            "sendLogsToClient": true
+        });
+
+        if let Some(uri) = vm_service_uri {
+            config_json["vmServiceUri"] = json!(uri);
+        }
+
+        if !tool_args.is_empty() {
+            config_json["toolArgs"] = json!(tool_args);
+        }
 
         let debug_adapter_binary = DebugAdapterBinary {
             command: Some(command),
             arguments,
-            envs: vec![], // Add any Dart-specific env vars if needed
+            envs: env,
             cwd,
             connection: None,
             request_args: StartDebuggingRequestArguments {
-                configuration: config_json,
+                configuration: config_json.to_string(),
                 request: match request {
                     "attach" => StartDebuggingRequestArgumentsRequest::Attach,
                     _ => StartDebuggingRequestArgumentsRequest::Launch,
                 },
-            }, // request_args: StartDebuggingRequestArguments:,
+            },
         };
         Result::Ok(debug_adapter_binary)
     }