diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..66dec0b
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,4 @@
+package.json
+package-lock.json
+.nyc_output/
+lib/
diff --git a/package-lock.json b/package-lock.json
index 5cd7240..cb91f9d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9492,6 +9492,12 @@
         "tsutils": "^2.27.2"
       }
     },
+    "tslint-config-prettier": {
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/tslint-config-prettier/-/tslint-config-prettier-1.15.0.tgz",
+      "integrity": "sha512-06CgrHJxJmNYVgsmeMoa1KXzQRoOdvfkqnJth6XUkNeOz707qxN0WfxfhYwhL5kXHHbYJRby2bqAPKwThlZPhw==",
+      "dev": true
+    },
     "tsutils": {
       "version": "2.29.0",
       "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.29.0.tgz",
diff --git a/package.json b/package.json
index 5ba9fa6..838c618 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "build": "tsc -p .",
     "test": "TS_NODE_COMPILER_OPTIONS='{\"module\":\"commonjs\"}' nyc --require ts-node/register mocha \"src/*.test.ts\"",
     "prettier": "prettier '**/{*.{js?(on),ts,yml},.*.js?(on),.*.yml}' --write --list-different",
-    "tslint": "tslint -c tslint.json -p tsconfig.json './src/*.ts'",
+    "tslint": "tslint -t stylish -c tslint.json -p tsconfig.json './src/*.ts'",
     "semantic-release": "semantic-release"
   },
   "nyc": {
@@ -52,6 +52,7 @@
     "sinon": "^6.1.5",
     "ts-node": "^7.0.1",
     "tslint": "^5.11.0",
+    "tslint-config-prettier": "^1.15.0",
     "typescript": "^3.0.1"
   }
 }
diff --git a/src/index.test.ts b/src/index.test.ts
index 9237b38..eed2255 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -1,10 +1,10 @@
 Object.assign(global, require('abort-controller'))
 
-import { create, defer, toPromise, switchMap, concatMap, mergeMap, forEach } from '.'
+import { AssertionError } from 'assert'
 import { assert } from 'chai'
+import { Observable, of, Subject, Subscriber } from 'rxjs'
 import * as sinon from 'sinon'
-import { Subscriber, Subject, Observable, of } from 'rxjs'
-import { AssertionError } from 'assert'
+import { concatMap, create, defer, forEach, mergeMap, switchMap, toPromise } from '.'
 
 describe('Observable factories', () => {
     describe('create()', () => {
diff --git a/src/index.ts b/src/index.ts
index 6eeebd8..1ffe8d6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,21 +1,6 @@
-import { from, Observable, ObservableInput, Subscriber, Subscription, TeardownLogic, OperatorFunction } from 'rxjs'
+import { from, Observable, ObservableInput, OperatorFunction, Subscriber, Subscription, TeardownLogic } from 'rxjs'
 import { concatMap as rxConcatMap, mergeMap as rxMergeMap, switchMap as rxSwitchMap } from 'rxjs/operators'
 
-export const switchMap = <T, R>(
-    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
-): OperatorFunction<T, R> => source =>
-    source.pipe(rxSwitchMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
-
-export const concatMap = <T, R>(
-    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
-): OperatorFunction<T, R> => source =>
-    source.pipe(rxConcatMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
-
-export const mergeMap = <T, R>(
-    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
-): OperatorFunction<T, R> => source =>
-    source.pipe(rxMergeMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
-
 export const create = <T>(
     subscribe?: (subscriber: Subscriber<T>, signal: AbortSignal) => TeardownLogic
 ): Observable<T> =>
@@ -81,3 +66,18 @@ export const forEach = <T>(source: Observable<T>, next: (value: T) => void, sign
             })
         }
     })
+
+export const switchMap = <T, R>(
+    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
+): OperatorFunction<T, R> => source =>
+    source.pipe(rxSwitchMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
+
+export const concatMap = <T, R>(
+    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
+): OperatorFunction<T, R> => source =>
+    source.pipe(rxConcatMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
+
+export const mergeMap = <T, R>(
+    project: (value: T, index: number, abortSignal: AbortSignal) => ObservableInput<R>
+): OperatorFunction<T, R> => source =>
+    source.pipe(rxMergeMap((value, index) => defer(abortSignal => project(value, index, abortSignal))))
diff --git a/tslint.json b/tslint.json
index 62d448e..2b8994c 100644
--- a/tslint.json
+++ b/tslint.json
@@ -1,5 +1,5 @@
 {
-  "extends": ["tslint:recommended", "rxjs-tslint-rules", "tslint-react", "tslint-config-prettier"],
+  "extends": ["tslint:recommended", "tslint-config-prettier"],
   "rules": {
     "adjacent-overload-signatures": true,
     "array-type": [true, "array"],
@@ -87,16 +87,6 @@
     "prefer-template": [false, "allow-single-concat"],
     "quotemark": [true, "single", "jsx-double", "avoid-escape"],
     "return-undefined": true,
-    "rxjs-no-add": {
-      "severity": "error"
-    },
-    "rxjs-no-operator": {
-      "severity": "error"
-    },
-    "rxjs-no-patched": {
-      "severity": "error"
-    },
-    "rxjs-no-wholesale": true,
     "space-before-function-paren": [
       true,
       {