diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 541aee73d8e..5242932702e 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,7 +1,12 @@
 {
   "name": "mne-dev",
+  // More info on the Debian base image we're using here:
+  // https://github.com/devcontainers/images/tree/main/src/base-debian
+  // All features listed in the repository's devcontainer configuration are actually
+  // built into the image.
+  //
   // "image": "mcr.microsoft.com/devcontainers/base:debian-11",
-  "build": { "dockerfile": "Dockerfile" },
+  "build": { "dockerfile": "Dockerfile" }, // Only through the Dockerfile we can enforce ARM64
   "containerEnv": {
     "PYTHONNOUSERSITE": "true", // Make Python ignore the user's site-packages folder if it exists
     "XDG_RUNTIME_DIR": "/home/vscode/.cache/xdgr"