Hello world sans dockerhub

.circleci/config.yml

@@ -1,11 +1,10 @@
 version: 2.1
 jobs:
   build:
-    docker:
-      - image: cimg/node:14.10.1 # the primary container, where your job's commands are run
-        auth:
-          username: $DOCKERHUB_USER
-          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
+    machine:
+      image: ubuntu-2004:202010-01
     steps:
-      - checkout # check out the code in the project directory
-      - run: echo "hello world" # run the `echo` command
+      - checkout
+      - run:
+          name: "Hello World !"
+          command: echo "Hello World !"