Rewrote turborepo. Hopefully this is a bit more clean & easy to understand for me.

tools/eslint/base.ts

@@ -0,0 +1,88 @@
+import * as path from "node:path";
+import { includeIgnoreFile } from "@eslint/compat";
+import eslint from "@eslint/js";
+import importPlugin from "eslint-plugin-import";
+import turboPlugin from "eslint-plugin-turbo";
+import { defineConfig } from "eslint/config";
+import tseslint from "typescript-eslint";
+
+/**
+ * All packages that leverage t3-env should use this rule
+ */
+export const restrictEnvAccess = defineConfig(
+  { ignores: ["**/env.ts"] },
+  {
+    files: ["**/*.js", "**/*.ts", "**/*.tsx"],
+    rules: {
+      "no-restricted-properties": [
+        "error",
+        {
+          object: "process",
+          property: "env",
+          message:
+            "Use `import { env } from '~/env'` instead to ensure validated types.",
+        },
+      ],
+      "no-restricted-imports": [
+        "error",
+        {
+          name: "process",
+          importNames: ["env"],
+          message:
+            "Use `import { env } from '~/env'` instead to ensure validated types.",
+        },
+      ],
+    },
+  },
+);
+
+export const baseConfig = defineConfig(
+  // Ignore files not tracked by VCS and any config files
+  includeIgnoreFile(path.join(import.meta.dirname, "../../.gitignore")),
+  { ignores: ["**/*.config.*"] },
+  {
+    files: ["**/*.js", "**/*.ts", "**/*.tsx"],
+    plugins: {
+      import: importPlugin,
+      turbo: turboPlugin,
+    },
+    extends: [
+      eslint.configs.recommended,
+      ...tseslint.configs.recommended,
+      ...tseslint.configs.recommendedTypeChecked,
+      ...tseslint.configs.stylisticTypeChecked,
+    ],
+    rules: {
+      ...turboPlugin.configs.recommended.rules,
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
+      ],
+      "@typescript-eslint/consistent-type-imports": [
+        "warn",
+        { prefer: "type-imports", fixStyle: "separate-type-imports" },
+      ],
+      "@typescript-eslint/no-misused-promises": [
+        2,
+        { checksVoidReturn: { attributes: false } },
+      ],
+      "@typescript-eslint/no-unnecessary-condition": [
+        "error",
+        {
+          allowConstantLoopConditions: true,
+        },
+      ],
+      "@typescript-eslint/no-non-null-assertion": "error",
+      "import/consistent-type-specifier-style": ["error", "prefer-top-level"],
+    },
+  },
+  {
+    linterOptions: { reportUnusedDisableDirectives: true },
+    languageOptions: {
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+  },
+);

tools/eslint/nextjs.ts

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+import nextPlugin from "@next/eslint-plugin-next";
+import { defineConfig } from "eslint/config";
+
+export const nextjsConfig = defineConfig({
+  files: ["**/*.ts", "**/*.tsx"],
+  plugins: {
+    "@next/next": nextPlugin,
+  },
+  rules: {
+    ...nextPlugin.configs.recommended.rules,
+    ...nextPlugin.configs["core-web-vitals"].rules,
+    // TypeError: context.getAncestors is not a function
+    "@next/next/no-duplicate-head": "off",
+  },
+});

tools/eslint/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "@gib/eslint-config",
+  "private": true,
+  "type": "module",
+  "exports": {
+    "./base": "./base.ts",
+    "./nextjs": "./nextjs.ts",
+    "./react": "./react.ts"
+  },
+  "scripts": {
+    "clean": "git clean -xdf .cache .turbo node_modules",
+    "format": "prettier --check . --ignore-path ../../.gitignore",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@eslint/compat": "^1.4.0",
+    "@eslint/js": "catalog:",
+    "@next/eslint-plugin-next": "^16.0.0",
+    "eslint-plugin-import": "^2.32.0",
+    "eslint-plugin-jsx-a11y": "^6.10.2",
+    "eslint-plugin-react": "^7.37.5",
+    "eslint-plugin-react-hooks": "^7.0.1",
+    "eslint-plugin-turbo": "^2.5.8",
+    "typescript-eslint": "^8.46.2"
+  },
+  "devDependencies": {
+    "@gib/prettier-config": "workspace:*",
+    "@gib/tsconfig": "workspace:*",
+    "@types/node": "catalog:",
+    "eslint": "catalog:",
+    "prettier": "catalog:",
+    "typescript": "catalog:"
+  },
+  "prettier": "@gib/prettier-config"
+}

tools/eslint/react.ts

@@ -0,0 +1,19 @@
+import reactPlugin from "eslint-plugin-react";
+import reactHooks from "eslint-plugin-react-hooks";
+import { defineConfig } from "eslint/config";
+
+export const reactConfig = defineConfig(
+  {
+    files: ["**/*.ts", "**/*.tsx"],
+    ...reactPlugin.configs.flat.recommended,
+    ...reactPlugin.configs.flat["jsx-runtime"],
+    languageOptions: {
+      ...reactPlugin.configs.flat.recommended?.languageOptions,
+      ...reactPlugin.configs.flat["jsx-runtime"]?.languageOptions,
+      globals: {
+        React: "writable",
+      },
+    },
+  },
+  reactHooks.configs.flat["recommended-latest"]!,
+);

tools/eslint/tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "extends": "@gib/tsconfig/base.json",
+  "include": ["."],
+  "exclude": ["node_modules"]
+}