diff --git a/.gitignore b/.gitignore
index 478ab073..06482799 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,4 @@ test/elm/QuickType.elm
 *.log
 /test/elm/libsysconfcpus/
 /test/runs
+/dist
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 28b4baf9..8e6b4f88 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,7 @@
 // Place your settings in this file to overwrite default and user settings.
 {
 	"purescript.addNpmPath": true,
+  "purescript.buildCommand": "pulp build --build-path dist -- --json-errors",
 	"editor.formatOnSave": true,
 	"search.exclude": {
         "**/.git": true,
@@ -17,4 +18,4 @@
 		"cli/dist": true	
 	},
 	"java.configuration.updateBuildConfiguration": "automatic"
-}
\ No newline at end of file
+}
diff --git a/@types/Config.d.ts b/@types/Config.d.ts
new file mode 100644
index 00000000..b8749d3e
--- /dev/null
+++ b/@types/Config.d.ts
@@ -0,0 +1,18 @@
+type Json = object;
+type IRTypeable = Json | string;
+
+declare namespace Config {
+  export type TopLevelConfig =
+    | { name: string; samples: IRTypeable[] }
+    | { name: string; schema: Json };
+
+  export interface Config {
+    language: string;
+    topLevels: TopLevelConfig[];
+    inferMaps?: boolean;
+    rendererOptions?: { [name: string]: string };
+  }
+}
+
+export = Config;
+export as namespace Config;
diff --git a/@types/Core.d.ts b/@types/Core.d.ts
new file mode 100644
index 00000000..1f54f024
--- /dev/null
+++ b/@types/Core.d.ts
@@ -0,0 +1,7 @@
+declare namespace Core {
+  export type SourceCode = string;
+  export type ErrorMessage = string;
+}
+
+export = Core;
+export as namespace Core;
diff --git a/@types/Data.Either.d.ts b/@types/Data.Either.d.ts
new file mode 100644
index 00000000..d5891302
--- /dev/null
+++ b/@types/Data.Either.d.ts
@@ -0,0 +1,10 @@
+declare namespace Data_Either {
+  export interface Either<L, R> {}
+
+  export function isRight<T, U>(either: Either<T, U>): boolean;
+  export function isLeft<T, U>(either: Either<T, U>): boolean;
+  export function fromRight<T, U>(partial: any): (either: Either<T, U>) => U;
+}
+
+export = Data_Either;
+export as namespace Data_Either;
diff --git a/@types/Data.Maybe.d.ts b/@types/Data.Maybe.d.ts
new file mode 100644
index 00000000..c0d62383
--- /dev/null
+++ b/@types/Data.Maybe.d.ts
@@ -0,0 +1,9 @@
+declare namespace Data_Maybe {
+  export interface Maybe<T> {}
+
+  export function isJust<T>(maybe: Maybe<T>): boolean;
+  export function fromJust<T>(unused: any): (maybe: Maybe<T>) => T;
+  export const fromMaybe: <T>(def: T) => (maybe: Maybe<T>) => T;
+}
+export = Data_Maybe;
+export as namespace Data_Maybe;
diff --git a/@types/Doc.d.ts b/@types/Doc.d.ts
new file mode 100644
index 00000000..ad178703
--- /dev/null
+++ b/@types/Doc.d.ts
@@ -0,0 +1,13 @@
+import { OptionSpecification } from "./Options";
+
+declare namespace Doc {
+  export interface Renderer {
+    displayName: string;
+    names: [string];
+    extension: string;
+    aceMode: string;
+    options: [OptionSpecification];
+  }
+}
+export = Doc;
+export as namespace Doc;
diff --git a/@types/Language.Renderers.d.ts b/@types/Language.Renderers.d.ts
new file mode 100644
index 00000000..a1975c26
--- /dev/null
+++ b/@types/Language.Renderers.d.ts
@@ -0,0 +1,10 @@
+import { Renderer } from "./Doc";
+import { Maybe } from "./Data.Maybe";
+
+declare namespace Language_Renderers {
+  export const all: Renderer[];
+  export function rendererForLanguage(language: string): Maybe<Renderer>;
+}
+
+export = Language_Renderers;
+export as namespace Language_Renderers;
diff --git a/@types/Main.d.ts b/@types/Main.d.ts
new file mode 100644
index 00000000..7668ec6a
--- /dev/null
+++ b/@types/Main.d.ts
@@ -0,0 +1,20 @@
+import { Config } from "./Config";
+import { Either } from "./Data.Either";
+import { ErrorMessage, SourceCode } from "./Core";
+
+declare namespace Main {
+  export function main(config: Config): Either<ErrorMessage, SourceCode>;
+
+  export function mainWithOptions(options: {
+    [name: string]: string;
+  }): ((config: Config) => Either<ErrorMessage, SourceCode>);
+
+  export function urlsFromJsonGrammar(
+    json: object
+  ): Either<string, { [key: string]: string[] }>;
+
+  export const intSentinel: string;
+}
+
+export = Main;
+export as namespace Main;
diff --git a/@types/Options.d.ts b/@types/Options.d.ts
new file mode 100644
index 00000000..78cd0224
--- /dev/null
+++ b/@types/Options.d.ts
@@ -0,0 +1,34 @@
+import { Maybe } from "./Data.Maybe";
+
+declare namespace Options {
+  export interface BooleanValue {
+    value0: boolean;
+  }
+
+  export interface StringValue {
+    value0: string;
+  }
+
+  export interface EnumValue {
+    value0: number;
+    value1: string[];
+  }
+
+  export type OptionValue = BooleanValue | StringValue | EnumValue;
+
+  export interface OptionSpecification {
+    name: string;
+    description: string;
+    typeLabel: string;
+    default: OptionValue;
+  }
+
+  export const valueType: (
+    value: OptionValue
+  ) => "BooleanValue" | "StringValue" | "EnumValue";
+
+  export const stringValue: (value: OptionValue) => Maybe<string>;
+}
+
+export = Options;
+export as namespace Options;
diff --git a/cli/Doc.d.ts b/cli/Doc.d.ts
deleted file mode 100644
index b7dd99cb..00000000
--- a/cli/Doc.d.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-interface Renderer {
-  displayName: string;
-  names: [string];
-  extension: string;
-  aceMode: string;
-  options: [OptionSpecification];
-}
diff --git a/cli/Main.d.ts b/cli/Main.d.ts
deleted file mode 100644
index 58430ab9..00000000
--- a/cli/Main.d.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-type SourceCode = string;
-type ErrorMessage = string;
-
-interface Main {
-  main(config: Config): Either<ErrorMessage, SourceCode>;
-  mainWithOptions(options: {
-    [name: string]: string;
-  }): ((config: Config) => Either<ErrorMessage, SourceCode>);
-  urlsFromJsonGrammar(
-    json: object
-  ): Either<string, { [key: string]: string[] }>;
-  intSentinel: string;
-}
-
-type Json = object;
-type IRTypeable = Json | string;
-
-type TopLevelConfig =
-  | { name: string; samples: IRTypeable[] }
-  | { name: string; schema: Json };
-
-interface Config {
-  language: string;
-  topLevels: TopLevelConfig[];
-  inferMaps?: boolean;
-  rendererOptions?: { [name: string]: string };
-}
diff --git a/cli/Options.d.ts b/cli/Options.d.ts
deleted file mode 100644
index 89961eb0..00000000
--- a/cli/Options.d.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-interface OptionSpecification {
-  name: string;
-  description: string;
-  typeLabel: string;
-}
diff --git a/cli/Prelude.d.ts b/cli/Prelude.d.ts
deleted file mode 100644
index 33834a5c..00000000
--- a/cli/Prelude.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-type Either<L, R> = { value0: L | R };
-type Maybe<T> = { value0?: T };
diff --git a/cli/Renderers.d.ts b/cli/Renderers.d.ts
deleted file mode 100644
index 988bc983..00000000
--- a/cli/Renderers.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-interface Renderers {
-  all: Renderer[];
-  rendererForLanguage(language: string): Maybe<Renderer>;
-}
diff --git a/cli/either.ts b/cli/either.ts
deleted file mode 100644
index 72a7c6ce..00000000
--- a/cli/either.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-export function isRight<T, U>(either: Either<T, U>): boolean {
-  return either.constructor.name == "Right";
-}
-
-export function isLeft<T, U>(either: Either<T, U>): boolean {
-  return either.constructor.name == "Left";
-}
-
-export function get<T, U>(either: Either<T, U>): T | U {
-  return either.value0;
-}
-
-export function fromRight<T>(either: Either<string, T>): T | never {
-  let result = get(either);
-  if (isLeft(either)) {
-    console.error(result);
-    return process.exit(1);
-  } else {
-    return <T>result;
-  }
-}
diff --git a/cli/maybe.ts b/cli/maybe.ts
deleted file mode 100644
index 06ed6147..00000000
--- a/cli/maybe.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-export function isJust<T>(maybe: Maybe<T>): boolean {
-  return maybe.constructor.name === "Just";
-}
-
-export function fromJust<T>(maybe: Maybe<T>): T {
-  if (!maybe.value0) throw "fromJust invoked on Nothing";
-  return maybe.value0;
-}
diff --git a/cli/purescript.ts b/cli/purescript.ts
new file mode 100644
index 00000000..89cb8a7e
--- /dev/null
+++ b/cli/purescript.ts
@@ -0,0 +1,10 @@
+import * as Either from "Data.Either";
+import * as Maybe from "Data.Maybe";
+
+export function fromJust<T>(maybe: Maybe.Maybe<T>): T {
+  return Maybe.fromJust<T>(null)(maybe);
+}
+
+export function fromRight<L, R>(either: Either.Either<L, R>): R {
+  return Either.fromRight<L, R>(null)(either);
+}
diff --git a/cli/quicktype.ts b/cli/quicktype.ts
index 181458d2..1fb97879 100755
--- a/cli/quicktype.ts
+++ b/cli/quicktype.ts
@@ -1,13 +1,20 @@
 import * as fs from "fs";
 import * as path from "path";
 import * as process from "process";
-import * as Either from "./either";
-import * as Maybe from "./maybe";
-import { psRequire } from "./require";
+
+import * as Either from "Data.Either";
+import * as Maybe from "Data.Maybe";
+
+// These are simplified, uncurried versions of Either.fromRight, etc.
+import { fromRight, fromJust } from "./purescript";
+
 import * as _ from "lodash";
 
-const Main: Main = psRequire("Main");
-const Renderers: Renderers = psRequire("Language.Renderers");
+import * as Main from "Main";
+import { Config } from "Config";
+import { Renderer } from "Doc";
+import * as Renderers from "Language.Renderers";
+import { ErrorMessage, SourceCode } from "Core";
 
 const makeSource = require("stream-json");
 const Assembler = require("stream-json/utils/Assembler");
@@ -232,7 +239,7 @@ class Run {
       console.error(`'${lang}' is not yet supported as an output language.`);
       process.exit(1);
     }
-    return Maybe.fromJust(maybe);
+    return fromJust(maybe);
   };
 
   renderSamplesOrSchemas = (
@@ -254,7 +261,7 @@ class Run {
       rendererOptions: this.options.rendererOptions
     };
 
-    return Either.fromRight(Main.main(config));
+    return fromRight(Main.main(config));
   };
 
   splitAndWriteJava = (dir: string, str: string) => {
@@ -391,7 +398,7 @@ class Run {
       usage();
     } else if (this.options.srcUrls) {
       let json = JSON.parse(fs.readFileSync(this.options.srcUrls, "utf8"));
-      let jsonMap = Either.fromRight(Main.urlsFromJsonGrammar(json));
+      let jsonMap = fromRight(Main.urlsFromJsonGrammar(json));
       this.renderAndOutput(
         await this.mapValues(jsonMap, this.parseFileOrUrlArray)
       );
diff --git a/cli/require.ts b/cli/require.ts
deleted file mode 100644
index c67c9a7a..00000000
--- a/cli/require.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-export function tryRequire(...paths: string[]): any {
-  for (let path of paths) {
-    try {
-      return require(path);
-    } catch (e) {
-      continue;
-    }
-  }
-  throw "No path could be required";
-}
-
-export function psRequire<T>(path: string): T {
-  return tryRequire(`../output/${path}`, `./${path}`);
-}
diff --git a/cli/tsconfig.json b/cli/tsconfig.json
index 68683a3e..b4f62d06 100644
--- a/cli/tsconfig.json
+++ b/cli/tsconfig.json
@@ -1,10 +1,15 @@
 {
   "compilerOptions": {
     "target": "es5",
+    "module": "commonjs",
     "lib": ["es2015"],
-    "outDir": "../output",
+    "baseUrl": ".",
+    "allowJs": false,
+    "declaration": true,
     "typeRoots": ["../node_modules/@types"],
-    "strictNullChecks": true
-  },
-  "include": ["*.ts"]
+    "strictNullChecks": true,
+    "paths": {
+      "*": ["../dist/*"]
+    }
+  }
 }
diff --git a/package-lock.json b/package-lock.json
index 5280c445..28474041 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,6 +16,16 @@
       "integrity": "sha512-wbKN0MB4XsjdnSE04HiCzLoBDirGCM6zXrqavSj44nZnPFYpnrTF64E9O6Xmf0ca/IuKK/BHUcXwMiwk92gW6Q==",
       "dev": true
     },
+    "JSONStream": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
+      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "1.3.1",
+        "through": "2.3.8"
+      }
+    },
     "acorn": {
       "version": "4.0.13",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
@@ -443,9 +453,9 @@
       "integrity": "sha1-+GzWzvT1MAyOY+B6TVEvZfv/RTE=",
       "dev": true,
       "requires": {
+        "JSONStream": "1.3.1",
         "combine-source-map": "0.7.2",
         "defined": "1.0.0",
-        "JSONStream": "1.3.1",
         "through2": "2.0.3",
         "umd": "3.0.1"
       }
@@ -473,6 +483,7 @@
       "integrity": "sha1-tanJAgJD8McORnW+yCI7xifkFc4=",
       "dev": true,
       "requires": {
+        "JSONStream": "1.3.1",
         "assert": "1.4.1",
         "browser-pack": "6.0.2",
         "browser-resolve": "1.11.2",
@@ -494,7 +505,6 @@
         "https-browserify": "0.0.1",
         "inherits": "2.0.3",
         "insert-module-globals": "7.0.1",
-        "JSONStream": "1.3.1",
         "labeled-stream-splicer": "2.0.0",
         "module-deps": "4.1.1",
         "os-browserify": "0.1.2",
@@ -595,18 +605,12 @@
       "integrity": "sha1-BxPLdYckemMqnwjPG9FpuHi2Koo=",
       "dev": true,
       "requires": {
-        "browserify-cache-api": "3.0.1",
         "JSONStream": "0.10.0",
+        "browserify-cache-api": "3.0.1",
         "through2": "2.0.3",
         "xtend": "4.0.1"
       },
       "dependencies": {
-        "jsonparse": {
-          "version": "0.0.5",
-          "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-0.0.5.tgz",
-          "integrity": "sha1-MwVCrT8KZUZlt3jz6y2an6UHrGQ=",
-          "dev": true
-        },
         "JSONStream": {
           "version": "0.10.0",
           "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-0.10.0.tgz",
@@ -616,6 +620,12 @@
             "jsonparse": "0.0.5",
             "through": "2.3.8"
           }
+        },
+        "jsonparse": {
+          "version": "0.0.5",
+          "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-0.0.5.tgz",
+          "integrity": "sha1-MwVCrT8KZUZlt3jz6y2an6UHrGQ=",
+          "dev": true
         }
       }
     },
@@ -2558,14 +2568,6 @@
             }
           }
         },
-        "string_decoder": {
-          "version": "1.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "safe-buffer": "5.0.1"
-          }
-        },
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
@@ -2576,6 +2578,14 @@
             "strip-ansi": "3.0.1"
           }
         },
+        "string_decoder": {
+          "version": "1.0.1",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "safe-buffer": "5.0.1"
+          }
+        },
         "stringstream": {
           "version": "0.0.5",
           "bundled": true,
@@ -3249,10 +3259,10 @@
       "integrity": "sha1-wDv04BywhtW15azorQr+eInWOMM=",
       "dev": true,
       "requires": {
+        "JSONStream": "1.3.1",
         "combine-source-map": "0.7.2",
         "concat-stream": "1.5.2",
         "is-buffer": "1.1.5",
-        "JSONStream": "1.3.1",
         "lexical-scope": "1.2.0",
         "process": "0.11.10",
         "through2": "2.0.3",
@@ -3580,16 +3590,6 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
-    "JSONStream": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
-      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "1.3.1",
-        "through": "2.3.8"
-      }
-    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -4029,6 +4029,7 @@
       "integrity": "sha1-IyFYM/HaE/1gbMuAh7RIUty4If0=",
       "dev": true,
       "requires": {
+        "JSONStream": "1.3.1",
         "browser-resolve": "1.11.2",
         "cached-path-relative": "1.0.1",
         "concat-stream": "1.5.2",
@@ -4036,7 +4037,6 @@
         "detective": "4.5.0",
         "duplexer2": "0.1.4",
         "inherits": "2.0.3",
-        "JSONStream": "1.3.1",
         "parents": "1.0.1",
         "readable-stream": "2.0.6",
         "resolve": "1.4.0",
@@ -5101,18 +5101,18 @@
         "readable-stream": "2.0.6"
       }
     },
-    "string_decoder": {
-      "version": "0.10.31",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
-      "dev": true
-    },
     "string-stream": {
       "version": "0.0.7",
       "resolved": "https://registry.npmjs.org/string-stream/-/string-stream-0.0.7.tgz",
       "integrity": "sha1-z83oJ5n6YvMDQpqqeTNu6INDMv4=",
       "dev": true
     },
+    "string_decoder": {
+      "version": "0.10.31",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
+      "dev": true
+    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
diff --git a/package.json b/package.json
index c1424812..da0f3b2a 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,8 @@
   "name": "quicktype",
   "version": "0.10.8",
   "license": "Apache-2.0",
+  "main": "quicktype.js",
+  "types": "quicktype.d.ts",
   "repository": "https://github.com/quicktype/quicktype",
   "scripts": {
     "pub": "script/publish.sh",
diff --git a/script/build.sh b/script/build.sh
index 38ef97a6..20ece99f 100755
--- a/script/build.sh
+++ b/script/build.sh
@@ -1,12 +1,46 @@
 #!/bin/sh
 
+OUTDIR=dist
+
 npm install --ignore-scripts
 bower install --allow-root
-pulp build -- --source-maps --stash --censor-warnings
+pulp build --build-path $OUTDIR -- --source-maps --stash --censor-warnings
+
+# Move TypeScript typings next to PureScript JavaScript modules
+for typeFile in @types/*.d.ts; do
+    filename=$(basename $typeFile)
+    module="${filename%%.d.ts}"
+
+    cat $typeFile \
+        | sed -e "s/from \"\.\/\(.*\)\"/from \"\.\.\/\/\1\"/g" \
+        > $OUTDIR/$module/index.d.ts
+done
 
 tsc --project cli/tsconfig.json
 
-BIN=output/quicktype.js
-echo "#!/usr/bin/env node" > $BIN.bak
-cat $BIN >> $BIN.bak
-mv $BIN.bak $BIN
\ No newline at end of file
+# Rewrite `require("Module")` as `require("./Module")` for PureScript modules
+#
+# TODO I hate this, but after two weeks trying to make TypeScript, PureScript,
+# and JavaScript play nicely together, I'm saying "fuck it".
+#
+# Imports have to be absolute to compile, but relative to run. Seriously, fuck it.
+for typeFile in @types/*.d.ts; do
+    filename=$(basename $typeFile)
+    module="${filename%%.d.ts}"
+    # TODO this currently only works for top-level files
+    for script in cli/*.js; do
+        sed -i -e "s/require(\"$module\")/require(\"\.\/$module\")/g" $script
+    done
+    for script in cli/*.d.ts; do
+        sed -i -e "s/from \"$module\"/from \"\.\/$module\"/g" $script
+    done
+done
+
+# Distribute README, TypeScript, etc.
+rm -f cli/*-e # remove artifacts from sed(?)
+cp cli/*.js cli/*.d.ts $OUTDIR/
+
+(echo "#!/usr/bin/env node"; cat cli/quicktype.js) > $OUTDIR/quicktype.js
+chmod +x $OUTDIR/quicktype.js
+
+rm -f cli/*.js cli/*.d.ts
\ No newline at end of file
diff --git a/script/publish.sh b/script/publish.sh
index 5147bc26..47611ccd 100755
--- a/script/publish.sh
+++ b/script/publish.sh
@@ -1,22 +1,20 @@
 #!/bin/bash
 
+OUTDIR=dist
+
 # If not on CI, do a clean build
 if [ -z "$CI" ]; then
-    rm -rf output
+    rm -rf $OUTDIR
     npm run build
 fi
 
 # Copy npm package files into output/
 mkdir -p output
-cp LICENSE* package*.json cli/README.md output/
-cd output
-
-# This is pretty silly, but we do it to make Travis deploy work
-mkdir script
-echo "#\!/bin/bash" > script/build.sh
-chmod +x script/build.sh
+cp -r LICENSE* package*.json cli/README.md $OUTDIR/
 
+cd $OUTDIR
 # If not on CI, publish directly
 if [ -z "$CI" ]; then
-   npm publish
+   npm publish \
+    --ignore-scripts # Don't rebuild
 fi
\ No newline at end of file
diff --git a/script/quicktype b/script/quicktype
index 1796a074..87378612 100755
--- a/script/quicktype
+++ b/script/quicktype
@@ -1,3 +1,10 @@
 #!/bin/bash
 
-npx ts-node --project cli/tsconfig.json cli/quicktype.ts $@
+err() {
+    echo "$@" 1>&2
+}
+
+err "Building quicktype..."
+npm run build &>/dev/null
+
+node dist/quicktype.js $@
diff --git a/src/Options.purs b/src/Options.purs
index 950bce42..f1d7d898 100644
--- a/src/Options.purs
+++ b/src/Options.purs
@@ -10,10 +10,13 @@ module Options
     , enumOption
     , makeOptionValues
     , lookupOptionValue
+    , valueType
+    , stringValue
     ) where
 
 import Prelude
 
+import Data.Array ((!!))
 import Data.Array as A
 import Data.Foldable (elem, intercalate)
 import Data.Maybe (Maybe(..), fromJust)
@@ -45,6 +48,18 @@ type OptionValueExtractor a = OptionValue -> a
 
 type Option a = { specification :: OptionSpecification, extractor :: OptionValueExtractor a }
 
+valueType :: OptionValue -> String
+valueType = case _ of
+    BooleanValue _ -> "BooleanValue"
+    StringValue _ -> "StringValue"
+    EnumValue _ _ -> "EnumValue"
+
+stringValue :: OptionValue -> Maybe String
+stringValue = case _ of
+    BooleanValue b -> Just $ show b
+    StringValue s -> Just s
+    EnumValue i xs -> xs !! i
+
 -- FIXME: error handling!
 makeOptionValues :: OptionSpecifications -> StrMap String -> OptionValues
 makeOptionValues optionSpecifications optionStrings =
diff --git a/src/Samples.purs b/src/Samples.purs
deleted file mode 100644
index e2e562e9..00000000
--- a/src/Samples.purs
+++ /dev/null
@@ -1,14 +0,0 @@
-module Samples where
-
-samples :: Array String
-samples = [
-    "getting-started.json",
-    "pokedex.json",
-    "spotify-album.json",
-    "kitchen-sink.json",
-    "bitcoin-block.json",
-    "reddit.json",
-    "github-events.json",
-    "us-avg-temperatures.json",
-    "us-senators.json"
-  ]
diff --git a/test/test.ts b/test/test.ts
index fd40401a..7f3338c6 100755
--- a/test/test.ts
+++ b/test/test.ts
@@ -79,7 +79,7 @@ async function main(sources: string[]) {
 
 function testCLI() {
   console.log(`* CLI sanity check`);
-  const qt = "node output/quicktype.js";
+  const qt = "node dist/quicktype.js";
   exec(`${qt} --help`);
 }
 
diff --git a/test/tsconfig.json b/test/tsconfig.json
index 7c2192d4..1bc64cf9 100644
--- a/test/tsconfig.json
+++ b/test/tsconfig.json
@@ -4,5 +4,5 @@
     "lib": ["es2015"],
     "strictNullChecks": true
   },
-  "include": ["*.ts", "../cli/*.ts"]
+  "include": ["*.ts", "../dist/*.js", "../dist/*.d.ts"]
 }
diff --git a/test/utils.ts b/test/utils.ts
index 9ca6d2f0..6509bd0b 100644
--- a/test/utils.ts
+++ b/test/utils.ts
@@ -2,7 +2,7 @@
 
 import * as fs from "fs";
 
-import { main as quicktype_, Options } from "../cli/quicktype";
+import { main as quicktype_, Options } from "../dist/quicktype";
 import * as languages from "./languages";
 import deepEquals from "./lib/deepEquals";