diff --git a/.eslintrc.js b/.eslintrc.js
index 7ba765b4..17580314 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -153,11 +153,22 @@ module.exports = {
           caseInsensitive: true,
         },
         pathGroups: [
+          {
+            pattern: 'react',
+            group: 'external',
+            position: 'before',
+          },
           {
             pattern: '@sourcegraph/**',
             group: 'external',
             position: 'after',
           },
+          {
+            pattern: '*.scss',
+            group: 'index',
+            patternOptions: { matchBase: true },
+            position: 'after',
+          },
         ],
         pathGroupsExcludedImportTypes: [],
       },
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 00000000..0f85a9c8
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1,14 @@
+golang 1.17.5
+nodejs 16.7.0
+yarn 1.22.17
+fd 7.4.0
+shfmt 3.2.0
+shellcheck 0.7.1
+kubectl 1.21.7
+github-cli 2.0.0
+packer 1.7.10
+trivy 0.20.0
+kustomize 4.0.5
+awscli 2.4.7
+python system
+rust 1.58.0
diff --git a/check_dependent.sh b/check_dependent.sh
index 2b2b4d18..89bd957f 100755
--- a/check_dependent.sh
+++ b/check_dependent.sh
@@ -8,6 +8,7 @@ CONFIG_DIR=$(pwd)
 CLONE_DIR=$(mktemp -d)
 git clone --depth 1 https://github.com/sourcegraph/sourcegraph "$CLONE_DIR"
 cd "$CLONE_DIR"
+mkdir -p annotations
 echo "--- install nodejs"
 asdf install
 echo "--- yarn"