Typescript + ESLint + Airbnb + Prettier + CSpell

.cspell.json

{
  "version": "0.1",
  "$schema": "https://raw.githubusercontent.com/streetsidesoftware/cspell/master/cspell.schema.json",
  "language": "en",
  "words": [
    "bitjson",
    "bitauth",
    "cimg",
    "circleci",
    "codecov",
    "commitlint",
    "dependabot",
    "editorconfig",
    "esnext",
    "execa",
    "exponentiate",
    "globby",
    "libauth",
    "mkdir",
    "prettierignore",
    "sandboxed",
    "transpiled",
    "typedoc",
    "untracked"
  ],
  "flagWords": [],
  "ignorePaths": [
    "package.json",
    "package-lock.json",
    "yarn.lock",
    "tsconfig.json",
    "node_modules/**"
  ]
}

.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "parserOptions": { "project": "./tsconfig.json" },
  "env": { "es6": true },
  "ignorePatterns": ["node_modules", "build", "coverage"],
  "plugins": ["import", "eslint-comments", "functional"],
  "extends": [
    "airbnb-typescript-prettier",
    "eslint:recommended",
    "plugin:eslint-comments/recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/typescript",
    "plugin:functional/lite",
    "prettier",
    "prettier/@typescript-eslint"
  ],
  "globals": { "BigInt": true, "console": true, "WebAssembly": true },
  "rules": {
    "no-console": "off",
    "no-irregular-whitespace": "off",
    "no-unused-vars": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-unused-vars": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "functional/prefer-readonly-type": "off",
    "eslint-comments/disable-enable-pair": [
      "error",
      { "allowWholeFile": true }
    ],
    "eslint-comments/no-unused-disable": "error",
    "import/order": [
      "error",
      { "newlines-between": "always", "alphabetize": { "order": "asc" } }
    ],
    "prettier/prettier": "warn", // change it to off if you don't want the wiggly lines.
    "import/prefer-default-export": "off",
    "sort-imports": [
      "error",
      { "ignoreDeclarationSort": true, "ignoreCase": true }
    ]
  }
}

.eslintrc.json - next.js

Install necessary packages using yarn:    
yarn add -D eslint eslint-config-airbnb-typescript-prettier\
	eslint-config-prettier eslint-plugin-eslint-comments\
	eslint-plugin-functional eslint-plugin-import eslint-plugin-jsx-a11y\
	eslint-plugin-react eslint-plugin-react-hooks


/* .eslintrc.json */

{
	"env": {
		"browser": true,
		"node": true
	},
	"extends": [
		"plugin:react/recommended",
		"airbnb-typescript-prettier",
		"eslint:recommended"
		// "plugin:eslint-comments/recommended",
		// "plugin:@typescript-eslint/recommended",
		// "plugin:import/typescript",
		// "plugin:functional/lite",
		// "prettier",
		// "prettier/@typescript-eslint"
	],
	"parser": "@typescript-eslint/parser",
	"ignorePatterns": ["node_modules", "lotties", ".next", "*.js"],
	"parserOptions": {
		"ecmaFeatures": {
			"jsx": true
		},
		"ecmaVersion": 12,
		"sourceType": "module"
	},
	"plugins": [
		"react",
		"@typescript-eslint",
		"import",
		"eslint-comments",
		"functional"
	],
	"rules": {
		"react/jsx-one-expression-per-line": "off",
		"react/jsx-props-no-spreading": "off",
		"react/no-array-index-key": "off",
		"react-hooks/exhaustive-deps": "off",
		"react/react-in-jsx-scope": "off",
		"react/self-closing-comp": "warn",
		"react/require-default-props": "off",
		"react/button-has-type": "warn",
		"react/jsx-filename-extension": [
			1,
			{ "extensions": [".js", ".jsx", ".tsx"] }
		],

		"jsx-a11y/click-events-have-key-events": "warn",
		"jsx-a11y/no-static-element-interactions": "warn",

		"no-nested-ternary": "off",
		"no-irregular-whitespace": "off",
		"no-unused-vars": "warn",
		"no-use-before-define": "off",
		"no-console": "off",
		"no-shadow": "off",
		"camelcase": "warn",
		"linebreak-style": ["off", "windows"],
		"import/extensions": 0,
		"import/no-unresolved": 0,
		"object-curly-newline": "off",
		"jsx-quotes": ["warn", "prefer-single"],
		"consistent-return": "off",
		"no-underscore-dangle": "off",
		"no-unused-expressions": "off",
		"no-else-return": "off",

		"@typescript-eslint/explicit-module-boundary-types": "off",
		"@typescript-eslint/no-unused-vars": "off",
		"@typescript-eslint/no-explicit-any": "off",
		"@typescript-eslint/no-shadow": "off",
		"@typescript-eslint/ban-ts-comment": "off",

		"functional/prefer-readonly-type": "off",
		"functional/no-let": "off",
		"functional/no-throw-statement": "off",
		"functional/no-return-void": "off",
		"functional/no-class": "off",
		"functional/immutable-data": "warn",

		"eslint-comments/disable-enable-pair": [
			"error",
			{ "allowWholeFile": true }
		],
		"eslint-comments/no-unused-disable": "error",

		"import/order": [
			"error",
			{ "newlines-between": "always", "alphabetize": { "order": "asc" } }
		],
		"import/prefer-default-export": "off",
		"import/no-mutable-exports": "off",
		"sort-imports": [
			"error",
			{ "ignoreDeclarationSort": true, "ignoreCase": true }
		],

		"prettier/prettier": "off"
	}
}

.prettierrc

{
	"arrowParens": "always",
	"bracketSpacing": true,
	"embeddedLanguageFormatting": "auto",
	"endOfLine": "lf",
	"htmlWhitespaceSensitivity": "css",
	"insertPragma": false,
	"jsxSingleQuote": true,
	"proseWrap": "preserve",
	"quoteProps": "as-needed",
	"printWidth": 80,
	"semi": true,
	"singleQuote": true,
	"tabWidth": 2,
	"trailingComma": "es5",
	"useTabs": true
}

devDependencies

Install using yarn:    
yarn add -D eslint-config-airbnb-typescript-prettier eslint-config-prettier eslint-plugin-eslint-comments eslint-plugin-functional eslint-plugin-import

    "@typescript-eslint/eslint-plugin": "^4.0.1",
    "@typescript-eslint/parser": "^4.0.1",
    "cspell": "^4.1.0",
    "eslint": "^7.30.0",
    "eslint-config-airbnb-typescript-prettier": "^4.2.0",
    "eslint-config-prettier": "^6.11.0",
    "eslint-plugin-eslint-comments": "^3.2.0",
    "eslint-plugin-functional": "^3.0.2",
    "eslint-plugin-import": "^2.22.0",
    "prettier": "^2.3.2",
    "ts-node": "^9.0.0",
    "typedoc": "^0.19.0",
    "typescript": "^4.3.5",
    "@types/node": "^16.3.0"

tsconfig.json

{
  "extends": "./tsconfig.paths.json",
  "compilerOptions": {
    "incremental": true,
    "target": "ES2020",
    "outDir": "build/main",
    "rootDir": "src",
    "moduleResolution": "node",
    "module": "commonjs",
    "lib": ["ESNext"],
    "types": ["node"],
    "typeRoots": ["node_modules/@types", "src/types"],
    "declaration": true,
    "inlineSourceMap": true,
    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
    "resolveJsonModule": true /* Include modules imported with .json extension. */,

    // "strict": true /* Enable all strict type-checking options. */,

    /* Strict Type-Checking Options */
    // "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
    // "strictNullChecks": true /* Enable strict null checks. */,
    // "strictFunctionTypes": true /* Enable strict checking of function types. */,
    // "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
    // "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
    "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,

    /* Additional Checks */
    "noUnusedLocals": false /* Report errors on unused locals. */,
    "noUnusedParameters": false /* Report errors on unused parameters. */,
    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,

    /* Debugging Options */
    "traceResolution": false /* Report module resolution log messages. */,
    "listEmittedFiles": false /* Print names of generated files part of the compilation. */,
    "listFiles": false /* Print names of files part of the compilation. */,
    "pretty": true /* Stylize errors and messages using color and context. */

    /* Experimental Options */
    // "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
    // "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */,
  },
  "include": ["src/**/*.ts"],
  "exclude": [
    "node_modules/**",
    ".vscode/**/*",
    ".github/**/*",
    ".circleci/**/*"
  ],
  "compileOnSave": false,
  "ts-node": {
    "require": ["tsconfig-paths/register"]
  }
}

tsconfig.paths.json

{
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
      "@libs/*": ["src/lib/*"]
    }
  }
}