diff --git a/.gitignore b/.gitignore
index 211717b7..d7c7c711 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,6 @@ node_modules/
 dist/
 tsc-out/
 .eslintcache
-.vscode/
+.vscode/*
+!.vscode/launch.json
 *.tgz
diff --git a/.npmignore b/.npmignore
index c5b178a4..77d4e578 100644
--- a/.npmignore
+++ b/.npmignore
@@ -3,3 +3,4 @@ test
 types
 tsconfig.json
 *.sh
+.vscode
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 00000000..504a19f3
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,50 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Test262 (edit subset in launch.json)",
+      "request": "launch",
+      "type": "node",
+      "runtimeExecutable": "npm",
+      "runtimeArgs": ["run", "test262"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "autoAttachChildProcesses": true,
+      "env": {
+        // Replace the glob pattern below with tests you want to debug.
+        // Comment out to run all tests, but will be very slow!
+        "TESTS": "PlainYearMonth/prototype/subtract/*.js",
+        // Extends timeouts to 1 hour (from 10 seconds default) so you can
+        // debug a test stopped at a breakpoint before the runner kills it.
+        "TIMEOUT": "3600000"
+      }
+    },
+    {
+      "name": "Test262 (current file)",
+      "request": "launch",
+      "type": "node",
+      "runtimeExecutable": "npm",
+      "runtimeArgs": ["run", "test262"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "autoAttachChildProcesses": true,
+      "env": {
+        // Only test the currently-opened file in the IDE
+        "TESTS": "${file}",
+        // Extends timeouts to 1 hour (from 10 seconds default) so you can
+        // debug a test stopped at a breakpoint before the runner kills it.
+        "TIMEOUT": "3600000"
+      }
+    },
+    {
+      "name": "Demitasse tests",
+      "request": "launch",
+      "type": "node",
+      "runtimeExecutable": "npm",
+      "runtimeArgs": ["test"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "autoAttachChildProcesses": true,
+    },
+ ]
+}