diff --git a/.eslintrc.js b/.eslintrc.js
index 6ed9ecfdf4..e2e725d65e 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -102,5 +102,88 @@ module.exports = {
         'valid-typeof': 'off',
       },
     },
-  ],
-}
+    {
+      files: [
+        "lib/index-bundle.ts",
+        "lib/index.ts",
+        "lib/network/gephiParser.ts",
+        "test/NodesHandler.test.ts",
+        "test/dot-parser/dot-parser.test.ts",
+        "test/edges/bezier-edge-dynamic.test.ts",
+        "test/edges/bezier-edge-static.test.ts",
+        "test/edges/cubic-bezier-edge.test.ts",
+        "test/edges/edge-base.test.ts",
+        "test/edges/end-points.test.ts",
+        "test/edges/helpers.ts",
+        "test/edges/straight-edge.test.ts",
+        "test/gephi-parser.test.ts",
+        "test/helpers/index.ts"
+      ],
+      rules: {
+        "prettier/prettier": [
+          "error",
+          {
+            endOfLine: "lf",
+            parser: "typescript",
+            printWidth: 80,
+            quoteProps: "consistent",
+            semi: false,
+            singleQuote: true,
+            tabWidth: 2,
+            trailingComma: "es5",
+            useTabs: false
+          }
+        ],
+
+        // @TODO: Seems to mostly work just fine but I'm not 100 % sure.
+        // @TODO: Deprecated, anything like this for tsdoc?
+        "valid-jsdoc": [
+          "error",
+          {
+            prefer: {
+              arg: "param",
+              argument: "param",
+              return: "returns"
+            },
+            requireParamDescription: true,
+            requireParamType: false,
+            requireReturn: false, // Requires return for void functions.
+            requireReturnDescription: true,
+            requireReturnType: false
+          }
+        ],
+
+        // Class related.
+        "@typescript-eslint/member-naming": [
+          "error",
+          { private: "^_", protected: "^_", public: "^[^_]" }
+        ],
+        "@typescript-eslint/member-ordering": "error",
+        "@typescript-eslint/no-parameter-properties": "off",
+        "@typescript-eslint/no-useless-constructor": "error",
+        "@typescript-eslint/prefer-readonly": "error",
+
+        // Other.
+        "@typescript-eslint/no-unnecessary-type-assertion": "error",
+        "@typescript-eslint/prefer-includes": "error",
+        "@typescript-eslint/prefer-regexp-exec": "error",
+        // @TODO: Seems like a good thing, not yet on npm though.
+        // "@typescript-eslint/require-await": "error",
+
+        // These are hoisted, I have no idea why it reports them by default.
+        "@typescript-eslint/no-use-before-define": [
+          "error",
+          { functions: false, classes: false, typedefs: false }
+        ],
+        // False positives for overloading, also tsc compiles with errors anyway.
+        "no-dupe-class-members": "off",
+        // Blocks typesafe exhaustive switch (switch (x) { … default: const never: never = x }).
+        "no-case-declarations": "off",
+        // Reports used types.
+        "no-unused-vars": "off",
+        // Reports typeof bigint as an error, tsc validates this anyway so no problem turning this off.
+        "valid-typeof": "off"
+      }
+    },
+  ]
+};
diff --git a/.prettierrc.json b/.prettierrc.json
index 9241a52670..0967ef424b 100644
--- a/.prettierrc.json
+++ b/.prettierrc.json
@@ -1,11 +1 @@
-{
-  "endOfLine": "lf",
-  "parser": "typescript",
-  "printWidth": 80,
-  "quoteProps": "consistent",
-  "semi": false,
-  "singleQuote": true,
-  "tabWidth": 2,
-  "trailingComma": "es5",
-  "useTabs": false
-}
+{}