diff --git a/packages/vscode-extension/DEV.md b/packages/vscode-extension/DEV.md
new file mode 100644
index 0000000..a7db151
--- /dev/null
+++ b/packages/vscode-extension/DEV.md
@@ -0,0 +1,4 @@
+# Development commands
+
+- https://code.visualstudio.com/api/get-started/your-first-extension#developing-the-extension
+- `F5` to start debugging the extension
diff --git a/packages/vscode-extension/src/graphVisualizerView.ts b/packages/vscode-extension/src/graphVisualizerView.ts
index 4e68537..92d5dca 100644
--- a/packages/vscode-extension/src/graphVisualizerView.ts
+++ b/packages/vscode-extension/src/graphVisualizerView.ts
@@ -26,6 +26,10 @@ export class GraphVisualizerView {
 				localResourceRoots: [context.extensionUri],
 			},
 		);
+
+		workspace.onDidChangeWorkspace(() => {
+			void this.renderPanel();
+		});
 	}
 
 	renderHtml(content: string) {
diff --git a/packages/vscode-extension/src/lastRunView.ts b/packages/vscode-extension/src/lastRunView.ts
index ae2ee67..ab6a01e 100644
--- a/packages/vscode-extension/src/lastRunView.ts
+++ b/packages/vscode-extension/src/lastRunView.ts
@@ -26,6 +26,10 @@ export class LastRunProvider implements vscode.WebviewViewProvider {
 		watcher.onDidDelete(this.renderView, this);
 
 		context.subscriptions.push(watcher);
+
+		workspace.onDidChangeWorkspace(() => {
+			this.renderView();
+		});
 	}
 
 	resolveWebviewView(webviewView: vscode.WebviewView): Thenable<void> | void {
diff --git a/packages/vscode-extension/src/moon.ts b/packages/vscode-extension/src/moon.ts
index dd37faf..fcf9329 100644
--- a/packages/vscode-extension/src/moon.ts
+++ b/packages/vscode-extension/src/moon.ts
@@ -31,23 +31,6 @@ export function findMoonBin(workspaceRoot: string): string | null {
 	return null;
 }
 
-export async function findWorkspaceRoot(
-	workingDir: vscode.WorkspaceFolder,
-): Promise<string | null> {
-	const baseRoot = vscode.workspace.getConfiguration('moon').get('workspaceRoot', '.');
-
-	const files = await vscode.workspace.findFiles(
-		new vscode.RelativePattern(workingDir, path.join(baseRoot, '.moon/*.yml')),
-	);
-
-	// Return folder containing the `.moon` folder
-	if (files.length > 0 && files[0].scheme === 'file') {
-		return path.dirname(path.dirname(files[0].fsPath));
-	}
-
-	return null;
-}
-
 export function isRealBin(binPath: string): boolean {
 	const stats = fs.statSync(binPath);
 
diff --git a/packages/vscode-extension/src/projectsView.ts b/packages/vscode-extension/src/projectsView.ts
index f96d612..83ea979 100644
--- a/packages/vscode-extension/src/projectsView.ts
+++ b/packages/vscode-extension/src/projectsView.ts
@@ -221,6 +221,10 @@ export class ProjectsProvider implements vscode.TreeDataProvider<TreeItem> {
 			watcher1,
 			watcher2,
 		);
+
+		workspace.onDidChangeWorkspace(() => {
+			this.refresh();
+		});
 	}
 
 	getParent(element: TreeItem): vscode.ProviderResult<TreeItem> {
@@ -232,7 +236,7 @@ export class ProjectsProvider implements vscode.TreeDataProvider<TreeItem> {
 	}
 
 	async getChildren(element?: TreeItem | undefined): Promise<TreeItem[]> {
-		if (element instanceof TaskItem) {
+		if (element instanceof TaskItem || !this.workspace.root) {
 			return [];
 		}
 
diff --git a/packages/vscode-extension/src/workspace.ts b/packages/vscode-extension/src/workspace.ts
index 9b6d8d1..9115b6e 100644
--- a/packages/vscode-extension/src/workspace.ts
+++ b/packages/vscode-extension/src/workspace.ts
@@ -1,3 +1,4 @@
+import path from 'path';
 import execa from 'execa';
 import vscode from 'vscode';
 import { findMoonBin, isRealBin } from './moon';
@@ -15,23 +16,32 @@ export class Workspace {
 	// Current moon workspace root
 	root: string | null = null;
 
+	private listeners: (() => void)[] = [];
+
 	constructor() {
 		this.logger = vscode.window.createOutputChannel('moon', { log: true });
 
-		// When a file is opened, attempt to find the moon workspace
-		vscode.workspace.onDidOpenTextDocument((text) => {
-			this.logger.appendLine('Opened a file, checking for workspace changes');
-			void this.findRoot(text.uri);
-		});
+		// Find moon workspace from default editor
+		if (vscode.window.activeTextEditor) {
+			void this.findRoot(vscode.window.activeTextEditor.document.uri);
+		}
 
-		vscode.workspace.onDidCloseTextDocument((text) => {
-			this.logger.appendLine('Closed a file, checking for workspace changes');
-			void this.findRoot(text.uri);
+		// When an editor is changed, attempt to find the moon workspace
+		vscode.window.onDidChangeActiveTextEditor((editor) => {
+			if (editor) {
+				this.logger.appendLine('Opened a file, checking for workspace changes');
+				void this.findRoot(editor.document.uri);
+			}
 		});
 	}
 
+	onDidChangeWorkspace(listener: () => void) {
+		this.listeners.push(listener);
+	}
+
 	async findRoot(openUri: vscode.Uri) {
 		if (this.root && openUri.fsPath.startsWith(this.root)) {
+			this.logger.appendLine('Already in a workspace, skipping');
 			return;
 		}
 
@@ -44,27 +54,30 @@ export class Workspace {
 		const workspaceFolder = vscode.workspace.getWorkspaceFolder(openUri);
 
 		if (workspaceFolder) {
-			this.logger.appendLine(
-				`Found workspace folder ${workspaceFolder.uri.fsPath} (${workspaceFolder.name})`,
-			);
+			this.folder = workspaceFolder;
 
+			this.logger.appendLine(`Found workspace folder ${workspaceFolder.uri.fsPath}`);
 			this.logger.appendLine('Attempting to find a moon installation');
 
+			const rootPrefix = vscode.workspace.getConfiguration('moon').get('workspaceRoot', '.');
 			const files = await vscode.workspace.findFiles(
-				new vscode.RelativePattern(workspaceFolder.uri, '.moon/*.yml'),
+				new vscode.RelativePattern(workspaceFolder.uri, path.join(rootPrefix, '.moon/*.yml')),
 			);
 
-			this.folder = workspaceFolder;
-
 			if (files.length > 0) {
 				this.root = workspaceFolder.uri.fsPath;
 				this.binPath = findMoonBin(this.root);
 
-				this.logger.appendLine(`Found workspace root at ${this.root}`);
+				this.logger.appendLine(`Found moon workspace root at ${this.root}`);
 
 				if (this.binPath) {
 					this.logger.appendLine(`Found moon binary at ${this.binPath}`);
 				}
+
+				// Trigger re-renders
+				this.listeners.forEach((listener) => void listener());
+			} else {
+				this.logger.appendLine('Did not find a moon installation, disabling');
 			}
 		} else {
 			this.logger.appendLine('Did not find a workspace folder, disabling moon');