diff --git a/.docker/Dockerfile b/.docker/Dockerfile
deleted file mode 100644
index fee5d26..0000000
--- a/.docker/Dockerfile
+++ /dev/null
@@ -1,3 +0,0 @@
-FROM python:bullseye
-RUN apt-get update
-RUN apt-get install -y git
diff --git a/.fleet/Dockerfile b/.fleet/Dockerfile
deleted file mode 100644
index 5c32d42..0000000
--- a/.fleet/Dockerfile
+++ /dev/null
@@ -1,3 +0,0 @@
-FROM python:latest
-RUN apt-get update
-RUN apt-get install -y git
diff --git a/.fleet/run.json b/.fleet/run.json
deleted file mode 100644
index faaacdb..0000000
--- a/.fleet/run.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "configurations": [
-    {
-      "type": "python-tests",
-      "name": "tests",
-      "testFramework": "pytest",
-      "target": " ",
-      "arguments": ["--path", "tests"],
-    }
-  ]
-}
diff --git a/.fleet/settings.json b/.fleet/settings.json
deleted file mode 100644
index e69de29..0000000
diff --git a/.space/pycharm.devfile.yaml b/.space/pycharm.devfile.yaml
deleted file mode 100644
index b1bee02..0000000
--- a/.space/pycharm.devfile.yaml
+++ /dev/null
@@ -1,29 +0,0 @@
-schemaVersion: 2.2.0
-metadata:
-  name: 'PyCharm dev env configuration'
-attributes:
-  space:
-    instanceType: regular
-    editor:
-      type: PyCharm
-      version: '2023.2'
-      updateChannel: EAP
-      vmoptions:
-        - '-Xms2048m'
-        - '-Xmx4096m'
-    warmup:
-      startOn:
-        - type: gitPush
-          branchFilter:
-            include:
-              - 'refs/heads/master'
-      script:
-        ./dev-env-warmup.sh
-components:
-  - name: dev-container
-    # ToDo: build and publish the image to Space Packages to save time
-    image:
-      imageName: leetcode-dev:latest
-      dockerfile:
-        buildContext: .docker
-        uri: .docker/Dockerfile