diff --git a/.dockerignore b/.dockerignore
index 74a21c55e0..709fd21975 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -2,15 +2,16 @@
 **
 
 # Except the following.
+!docs/user_guide
 !nginx
 !public
 !src
-!docs/user_guide
 !.env
+!.eslintrc.cjs
 !dev-requirements.txt
 !package*.json
-!tsconfig.json
 !tox.ini
+!tsconfig.json
 
 # Ignore user guide build directory.
 docs/user_guide/site
diff --git a/.eslintrc.cjs b/.eslintrc.cjs
new file mode 100644
index 0000000000..fe11647d20
--- /dev/null
+++ b/.eslintrc.cjs
@@ -0,0 +1,69 @@
+module.exports = {
+  env: {
+    browser: true,
+    jest: true,
+  },
+  extends: [
+    "plugin:react/recommended",
+    "plugin:react/jsx-runtime",
+    "plugin:react-hooks/recommended",
+    "plugin:import/recommended",
+  ],
+  ignorePatterns: ["*.dic.js"],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaFeatures: { jsx: true },
+    project: "./tsconfig.json",
+  },
+  plugins: ["@typescript-eslint", "react", "unused-imports"],
+  root: true,
+  rules: {
+    "import/first": "warn",
+    "import/newline-after-import": "warn",
+    "import/no-duplicates": "warn",
+    "import/no-named-as-default": "off",
+    "import/no-named-as-default-member": "off",
+    "import/order": [
+      "warn",
+      {
+        alphabetize: { order: "asc" },
+        groups: [
+          "builtin",
+          "external",
+          ["internal", "parent", "sibling", "index", "object", "type"],
+        ],
+        "newlines-between": "always",
+      },
+    ],
+    "no-undef": "off",
+    "prefer-const": "warn",
+    "react/jsx-boolean-value": "warn",
+    "unused-imports/no-unused-imports": "warn",
+  },
+  settings: {
+    react: { version: "detect" },
+    "import/resolver": {
+      typescript: { alwaysTryTypes: true },
+    },
+  },
+  overrides: [
+    {
+      files: ["*.ts", "*.tsx"],
+      extends: [
+        "plugin:@typescript-eslint/recommended",
+        "plugin:import/typescript",
+      ],
+      rules: {
+        "@typescript-eslint/explicit-function-return-type": [
+          "warn",
+          { allowExpressions: true },
+        ],
+        "@typescript-eslint/no-empty-interface": "warn",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-inferrable-types": "warn",
+        "@typescript-eslint/no-unused-vars": "warn",
+        "@typescript-eslint/switch-exhaustiveness-check": "warn",
+      },
+    },
+  ],
+};
diff --git a/package.json b/package.json
index 67e5a699bc..ff4b70113d 100644
--- a/package.json
+++ b/package.json
@@ -125,89 +125,6 @@
     "source-map-explorer": "^2.5.3",
     "typescript": "4.9.5"
   },
-  "eslintConfig": {
-    "extends": [
-      "plugin:@typescript-eslint/recommended",
-      "plugin:react/recommended",
-      "plugin:react/jsx-runtime",
-      "plugin:react-hooks/recommended",
-      "plugin:import/recommended",
-      "plugin:import/typescript"
-    ],
-    "env": {
-      "browser": true,
-      "jest": true
-    },
-    "ignorePatterns": [
-      "*.dic.js"
-    ],
-    "rules": {
-      "@typescript-eslint/explicit-function-return-type": [
-        "warn",
-        {
-          "allowExpressions": true
-        }
-      ],
-      "@typescript-eslint/no-empty-interface": "warn",
-      "@typescript-eslint/no-explicit-any": "off",
-      "@typescript-eslint/no-inferrable-types": "warn",
-      "@typescript-eslint/no-unused-vars": "warn",
-      "@typescript-eslint/switch-exhaustiveness-check": "warn",
-      "import/first": "warn",
-      "import/newline-after-import": "warn",
-      "import/no-duplicates": "warn",
-      "import/no-named-as-default": "off",
-      "import/no-named-as-default-member": "off",
-      "import/order": [
-        "warn",
-        {
-          "groups": [
-            "builtin",
-            "external",
-            [
-              "internal",
-              "parent",
-              "sibling",
-              "index",
-              "object",
-              "type"
-            ]
-          ],
-          "alphabetize": {
-            "order": "asc"
-          },
-          "newlines-between": "always"
-        }
-      ],
-      "no-undef": "off",
-      "prefer-const": "warn",
-      "react/jsx-boolean-value": "warn",
-      "unused-imports/no-unused-imports": "warn"
-    },
-    "parser": "@typescript-eslint/parser",
-    "parserOptions": {
-      "ecmaFeatures": {
-        "jsx": true
-      },
-      "project": "./tsconfig.json"
-    },
-    "plugins": [
-      "@typescript-eslint",
-      "react",
-      "unused-imports"
-    ],
-    "root": true,
-    "settings": {
-      "react": {
-        "version": "detect"
-      },
-      "import/resolver": {
-        "typescript": {
-          "alwaysTryTypes": true
-        }
-      }
-    }
-  },
   "jest": {
     "coverageReporters": [
       "cobertura",
diff --git a/scripts/setupMongo.ts b/scripts/setupMongo.ts
index 862f00bf9d..7f8f85a906 100644
--- a/scripts/setupMongo.ts
+++ b/scripts/setupMongo.ts
@@ -2,7 +2,7 @@ import * as makeDir from "make-dir";
 
 const directory = "./mongo_database";
 
-const makeMongoDirectory = async () => {
+const makeMongoDirectory = async (): Promise<void> => {
   await makeDir(directory);
 };
 
diff --git a/tsconfig.json b/tsconfig.json
index f6222becae..9f9b6736f9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,23 +1,23 @@
 {
   "compilerOptions": {
-    "target": "es5",
-    "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
-    "skipLibCheck": true,
-    "esModuleInterop": true,
     "allowSyntheticDefaultImports": true,
-    "strict": true,
+    "baseUrl": "src",
+    "downlevelIteration": true,
+    "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "lib": ["dom", "dom.iterable", "esnext"],
     "module": "esnext",
     "moduleResolution": "node",
-    "resolveJsonModule": true,
-    "isolatedModules": true,
     "noEmit": true,
-    "jsx": "react-jsx",
-    "downlevelIteration": true,
-    "baseUrl": "src",
-    "noFallthroughCasesInSwitch": true
+    "noFallthroughCasesInSwitch": true,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "target": "es5"
   },
   "exclude": ["*.dic.js"],
-  "include": ["src", "scripts"]
+  "include": [".eslintrc.cjs", "src", "scripts"]
 }