diff --git a/lib/index.d.ts b/lib/index.d.ts
new file mode 100644
index 0000000..7617f84
--- /dev/null
+++ b/lib/index.d.ts
@@ -0,0 +1,6 @@
+export declare const startsWith: import("ts-toolbelt/out/Function/Curry").Curry<(needle: string, haystack: string) => boolean>;
+export declare const endsWith: import("ts-toolbelt/out/Function/Curry").Curry<(needle: string, haystack: string) => boolean>;
+/**
+ * Trims characters from the left side of a string.
+ */
+export declare const ltrim: import("ts-toolbelt/out/Function/Curry").Curry<(cutset: string, str: string) => string>;
diff --git a/lib/index.js b/lib/index.js
new file mode 100644
index 0000000..cfee34a
--- /dev/null
+++ b/lib/index.js
@@ -0,0 +1,67 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ltrim = exports.endsWith = exports.startsWith = void 0;
+const utils_1 = require("./utils");
+function escapeRegExp(str) {
+    return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
+}
+exports.startsWith = (0, utils_1.curry)((needle, haystack) => haystack.indexOf(needle) === 0);
+exports.endsWith = (0, utils_1.curry)((needle, haystack) => (new RegExp(`${escapeRegExp(needle)}$`)).test(haystack));
+/**
+ * Trims characters from the left side of a string.
+ */
+exports.ltrim = (0, utils_1.curry)((cutset, str) => {
+    const _trim = (x) => (0, exports.ltrim)(cutset)((0, utils_1.tail)(x));
+    // const _trim = compose(ltrim(cutset), tail);
+    const trimmed = () => (0, utils_1.when)((x = '') => cutset.includes(x.charAt(0)), _trim)(str);
+    return (0, utils_1.isEmpty)(cutset) || (0, utils_1.isEmpty)(str)
+        ? str
+        : trimmed();
+});
+// export const afterFirst = curry(
+//   /**
+//    * @param {String} separator
+//    * @param {String} str
+//    * @return {String}
+//    */
+//   (separator, str) => str.substring(str.indexOf(separator) + 1, str.length),
+// );
+// export const beforeFirst = curry(
+//   /**
+//    *
+//    * @param {String} separator
+//    * @param {String} str
+//    * @returns {String}
+//    */
+//   (separator, str) => str.substring(0, str.indexOf(separator)),
+// );
+// export const beforeFirstWord = beforeFirst(' ');
+// /**
+//  * @param {String} str
+//  * @return {String}
+//  */
+// export function afterFirstWord(str) {
+//   return afterFirst(' ', str);
+// }
+// export const removeFirstWord = afterFirstWord;
+// /**
+//  * @param {Number} maxChars
+//  * @param {String} str
+//  * @return {Boolean} False if str is longer than maxChars characters.
+//  */
+// const shorterThan = curry((maxChars, str) => str.length <= maxChars);
+// /**
+//  * @param {Number} maxChars The maximum length of the desired output string.
+//  * @param strategy a function that accepts a string and returns a shorter string.
+//  * @return {String} The input string, shortened to maxChars by strategy.
+//  */
+// const shortenString = (maxChars, strategy) => until(shorterThan(maxChars), strategy);
+// /**
+//  * @param {Number} maxChars
+//  * @param {String} str The string to remove words from.
+//  * @return {String} the shortened string.
+//  */
+// export const removeWordsFromStartOfString = uncurryN(
+//   2,
+//   (maxChars) => shortenString(maxChars, removeFirstWord),
+// );
diff --git a/lib/utils.d.ts b/lib/utils.d.ts
new file mode 100644
index 0000000..1058174
--- /dev/null
+++ b/lib/utils.d.ts
@@ -0,0 +1,5 @@
+import type { curry as _curry, when as _when } from 'ramda';
+export declare const curry: typeof _curry;
+export declare const isEmpty: (str: string) => boolean;
+export declare const tail: (str: string) => string;
+export declare const when: typeof _when;
diff --git a/lib/utils.js b/lib/utils.js
new file mode 100644
index 0000000..fe47f58
--- /dev/null
+++ b/lib/utils.js
@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.when = exports.tail = exports.isEmpty = exports.curry = void 0;
+exports.curry = function (fn) {
+    return (...args) => {
+        if (args.length >= fn.length) {
+            return fn(...args);
+        }
+        // @ts-ignore
+        return (...more) => (0, exports.curry)(fn)(...args, ...more);
+    };
+};
+const isEmpty = (str) => str == null || str === '';
+exports.isEmpty = isEmpty;
+const tail = (str) => str.substring(1);
+exports.tail = tail;
+exports.when = (0, exports.curry)((predicate, whenTrueFn, arg) => {
+    return predicate(arg) ? whenTrueFn(arg) : arg;
+});
diff --git a/package.json b/package.json
index 9fa8a4a..ec76719 100644
--- a/package.json
+++ b/package.json
@@ -2,11 +2,13 @@
   "name": "@sbrow/strings",
   "version": "0.1.0",
   "description": "Library for string manipulation",
-  "main": "src/index.ts",
+  "main": "./lib/index.js",
+  "types": "./lib/index.d.ts",
   "repository": "https://github.com/sbrow/strings",
   "author": "Spencer Brower <brower.spencer@gmail.com>",
   "license": "MIT",
   "scripts": {
+    "build": "tsc",
     "test": "vitest --run"
   },
   "devDependencies": {
diff --git a/tsconfig.json b/tsconfig.json
index a990343..11c26cb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -49,13 +49,13 @@
     // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
 
     /* Emit */
-    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
     // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
     // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
     // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
     // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
     // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
-    // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
+    "outDir": "./lib",                                   /* Specify an output folder for all emitted files. */
     // "removeComments": true,                           /* Disable emitting comments. */
     // "noEmit": true,                                   /* Disable emitting files from a compilation. */
     // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
@@ -104,6 +104,7 @@
 
     /* Completeness */
     // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
-    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
-  }
+    "skipLibCheck": true                                /* Skip type checking all .d.ts files. */
+  },
+  "exclude": ["src/**/*.spec.ts", "lib"]
 }