diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..d2f2c71
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,6 @@
+language: node_js
+
+node_js:
+  - 7
+
+after_success: npm run test:coverage
diff --git a/README.md b/README.md
index 8975ca5..c7fe053 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,10 @@
 # Styled Components on top of JSS
 
+[![Travis branch](https://img.shields.io/travis/cssinjs/styled-jss/master.svg?style=flat)](https://travis-ci.org/cssinjs/styled-jss)
+[![Coverage Status branch](https://img.shields.io/coveralls/cssinjs/styled-jss/master.svg?style=flat)](https://img.shields.io/coveralls/cssinjs/styled-jss/master.svg?branch=master)
+[![npm version](https://img.shields.io/npm/v/styled-jss.svg?style=flat)](https://www.npmjs.com/package/styled-jss)
+[![npm license](https://img.shields.io/npm/l/styled-jss.svg?style=flat)](https://www.npmjs.com/package/styled-jss)
+
 ## Install
 
 This has peer dependencies of `react` and `react-dom`, which will have to be installed as well.
diff --git a/package.json b/package.json
index ef3423c..3f34741 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "styled-jss",
   "version": "0.5.0",
   "description": "Styled Components on top of JSS.",
-  "main": "lib/index.js",
+  "main": "index.js",
   "scripts": {
     "clean": "rimraf lib/*",
     "lint": "eslint src",
@@ -10,18 +10,16 @@
     "flow": "flow check",
     "test": "jest",
     "test:watch": "npm test -- --watch",
-    "test:coverage": "npm test -- --coverage",
+    "test:coverage": "npm test -- --coverage && npm run coveralls",
+    "coveralls": "cat ./coverage/lcov.info | coveralls",
     "prebuild": "npm run clean && npm run flow && npm run lint && npm run test:coverage",
     "build": "babel src --out-dir lib --ignore tests",
+    "postbuild": "npm run flow:csrc && copyfiles -e '**/tests/*' ./*.* LICENSE -a -f lib",
+    "flow:csrc": "flow-copy-source -i '**/tests/*' src lib",
     "flow:typed": "flow-typed install",
     "flow:stub": "flow-typed create-stub",
-    "preversion": "npm run build",
-    "postversion": "git push --follow-tags"
+    "release": "npm run build && git push --follow-tags && npm publish lib"
   },
-  "files": [
-    "src",
-    "lib"
-  ],
   "repository": {
     "type": "git",
     "url": "git+https://github.com/cssinjs/styled-jss.git"
@@ -57,6 +55,8 @@
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.23.0",
+    "copyfiles": "^1.2.0",
+    "coveralls": "^2.13.0",
     "eslint": "^3.13.0",
     "eslint-config-airbnb": "^14.1.0",
     "eslint-config-jss": "^3.0.0",
@@ -64,6 +64,7 @@
     "eslint-plugin-jsx-a11y": "^4.0.0",
     "eslint-plugin-react": "^6.10.3",
     "flow-bin": "^0.44.2",
+    "flow-copy-source": "^1.1.0",
     "flow-typed": "^2.0.0",
     "jest": "^18.1.0",
     "lint-staged": "^3.4.0",
@@ -82,5 +83,8 @@
   "pre-commit": [
     "lint:staged",
     "test"
-  ]
+  ],
+  "jest": {
+    "rootDir": "src"
+  }
 }
diff --git a/yarn.lock b/yarn.lock
index b9f8321..f2d3da6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -498,7 +498,7 @@ babel-plugin-transform-es2015-modules-amd@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
+babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.24.1.tgz#d3e310b40ef664a36622200097c6d440298f2bfe"
   dependencies:
@@ -843,6 +843,10 @@ camelcase@^1.0.2:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
 
+camelcase@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
+
 camelcase@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
@@ -854,6 +858,10 @@ cardinal@^1.0.0:
     ansicolors "~0.2.1"
     redeyed "~1.0.0"
 
+caseless@~0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -950,7 +958,7 @@ cliui@^2.1.0:
     right-align "^0.1.1"
     wordwrap "0.0.2"
 
-cliui@^3.2.0:
+cliui@^3.0.3, cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
   dependencies:
@@ -1014,6 +1022,17 @@ convert-source-map@^1.1.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.0.tgz#9acd70851c6d5dfdd93d9282e5edf94a03ff46b5"
 
+copyfiles@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/copyfiles/-/copyfiles-1.2.0.tgz#a8da3ac41aa2220ae29bd3c58b6984294f2c593c"
+  dependencies:
+    glob "^7.0.5"
+    ltcdr "^2.2.1"
+    minimatch "^3.0.3"
+    mkdirp "^0.5.1"
+    noms "0.0.0"
+    through2 "^2.0.1"
+
 core-js@^1.0.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
@@ -1039,6 +1058,16 @@ cosmiconfig@^1.1.0:
     pinkie-promise "^2.0.0"
     require-from-string "^1.1.0"
 
+coveralls@^2.13.0:
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.0.tgz#df933876e8c6f478efb04f4d3ab70dc96b7e5a8e"
+  dependencies:
+    js-yaml "3.6.1"
+    lcov-parse "0.0.10"
+    log-driver "1.2.5"
+    minimist "1.2.0"
+    request "2.79.0"
+
 cross-spawn@^5.0.1:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
@@ -1411,7 +1440,7 @@ espree@^3.4.0:
     acorn "^5.0.1"
     acorn-jsx "^3.0.0"
 
-esprima@^2.7.1:
+esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
@@ -1584,6 +1613,15 @@ flow-bin@^0.44.2:
   version "0.44.2"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.44.2.tgz#3893c7db5de043ed82674f327a04b1309db208b5"
 
+flow-copy-source@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/flow-copy-source/-/flow-copy-source-1.1.0.tgz#0779692ff81693d304021b2d49753898a0772237"
+  dependencies:
+    fs-extra "^0.26.5"
+    glob "^7.0.0"
+    kefir "^3.2.0"
+    yargs "^3.32.0"
+
 flow-typed@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/flow-typed/-/flow-typed-2.1.0.tgz#072a64e2b617c759a785d1953d7f22d7e57dce7a"
@@ -1630,6 +1668,16 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
+fs-extra@^0.26.5:
+  version "0.26.7"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.26.7.tgz#9ae1fdd94897798edab76d0918cf42d0c3184fa9"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^2.1.0"
+    klaw "^1.0.0"
+    path-is-absolute "^1.0.0"
+    rimraf "^2.2.8"
+
 fs-extra@^2.0.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-2.1.2.tgz#046c70163cef9aad46b0e4a7fa467fb22d71de35"
@@ -1764,7 +1812,7 @@ globby@^5.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-graceful-fs@^4.1.2, graceful-fs@^4.1.4, graceful-fs@^4.1.6:
+graceful-fs@^4.1.2, graceful-fs@^4.1.4, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
@@ -1796,6 +1844,15 @@ har-schema@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
 
+har-validator@~2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
+  dependencies:
+    chalk "^1.1.1"
+    commander "^2.9.0"
+    is-my-json-valid "^2.12.4"
+    pinkie-promise "^2.0.0"
+
 har-validator@~4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
@@ -2008,7 +2065,7 @@ is-in-browser@1.0.2, is-in-browser@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-in-browser/-/is-in-browser-1.0.2.tgz#f688bea8f1e5aadc3244ebc870d188cfb9b613cf"
 
-is-my-json-valid@^2.10.0:
+is-my-json-valid@^2.10.0, is-my-json-valid@^2.12.4:
   version "2.16.0"
   resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.0.tgz#f079dd9bfdae65ee2038aae8acbc86ab109e3693"
   dependencies:
@@ -2370,6 +2427,13 @@ js-tokens@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
 
+js-yaml@3.6.1:
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.6.1.tgz#6e5fe67d8b205ce4d22fad05b7781e8dadcc4b30"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^2.6.0"
+
 js-yaml@^3.4.3, js-yaml@^3.5.1, js-yaml@^3.7.0:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.3.tgz#33a05ec481c850c8875929166fe1beb61c728766"
@@ -2523,12 +2587,24 @@ jsx-ast-utils@^1.0.0, jsx-ast-utils@^1.3.4:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-1.4.1.tgz#3867213e8dd79bf1e8f2300c0cfc1efb182c0df1"
 
+kefir@^3.2.0:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/kefir/-/kefir-3.7.1.tgz#e77f56feeec46f4a2ee2997e5c3226e904877b5b"
+  dependencies:
+    symbol-observable "^1.0.1"
+
 kind-of@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.1.0.tgz#475d698a5e49ff5e53d14e3e732429dc8bf4cf47"
   dependencies:
     is-buffer "^1.0.2"
 
+klaw@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
+  optionalDependencies:
+    graceful-fs "^4.1.9"
+
 lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
@@ -2539,6 +2615,10 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
+lcov-parse@0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-0.0.10.tgz#1b0b8ff9ac9c7889250582b70b71315d9da6d9a3"
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -2691,6 +2771,10 @@ lodash@^4.0.0, lodash@^4.14.0, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
+log-driver@1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.5.tgz#7ae4ec257302fd790d557cb10c97100d857b0056"
+
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -2721,6 +2805,10 @@ lru-cache@^4.0.1:
     pseudomap "^1.0.1"
     yallist "^2.0.0"
 
+ltcdr@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ltcdr/-/ltcdr-2.2.1.tgz#5ab87ad1d4c1dab8e8c08bbf037ee0c1902287cf"
+
 makeerror@1.0.x:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/makeerror/-/makeerror-1.0.11.tgz#e01a5c9109f2af79660e4e8b9587790184f5a96c"
@@ -2802,7 +2890,7 @@ minimist@0.0.8, minimist@~0.0.1:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
-minimist@^1.1.1, minimist@^1.2.0:
+minimist@1.2.0, minimist@^1.1.1, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
@@ -2879,6 +2967,13 @@ node-pre-gyp@^0.6.29:
     tar "^2.2.1"
     tar-pack "^3.4.0"
 
+noms@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/noms/-/noms-0.0.0.tgz#da8ebd9f3af9d6760919b27d9cdc8092a7332859"
+  dependencies:
+    inherits "^2.0.1"
+    readable-stream "~1.0.31"
+
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -3193,6 +3288,10 @@ punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
+qs@~6.3.0:
+  version "6.3.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
+
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
@@ -3253,7 +3352,7 @@ read-pkg@^1.0.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
-"readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.2, readable-stream@^2.1.4, readable-stream@^2.2.2:
+"readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.2, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2:
   version "2.2.9"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.9.tgz#cf78ec6f4a6d1eb43d26488cac97f042e74b7fc8"
   dependencies:
@@ -3362,6 +3461,31 @@ repeating@^2.0.0:
   dependencies:
     is-finite "^1.0.0"
 
+request@2.79.0:
+  version "2.79.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+  dependencies:
+    aws-sign2 "~0.6.0"
+    aws4 "^1.2.1"
+    caseless "~0.11.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.0"
+    forever-agent "~0.6.1"
+    form-data "~2.1.1"
+    har-validator "~2.0.6"
+    hawk "~3.1.3"
+    http-signature "~1.1.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.7"
+    oauth-sign "~0.8.1"
+    qs "~6.3.0"
+    stringstream "~0.0.4"
+    tough-cookie "~2.3.0"
+    tunnel-agent "~0.4.1"
+    uuid "^3.0.0"
+
 request@^2.69.0, request@^2.79.0, request@^2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -3733,6 +3857,13 @@ throat@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-3.0.0.tgz#e7c64c867cbb3845f10877642f7b60055b8ec0d6"
 
+through2@^2.0.1:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
+  dependencies:
+    readable-stream "^2.1.5"
+    xtend "~4.0.1"
+
 through@^2.3.6, through@^2.3.8:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
@@ -3773,6 +3904,10 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
+tunnel-agent@~0.4.1:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
@@ -3917,6 +4052,10 @@ window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
 
+window-size@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
+
 window-size@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
@@ -3961,11 +4100,11 @@ xml-name-validator@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-2.0.1.tgz#4d8b8f1eccd3419aa362061becef515e1e559635"
 
-"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0:
+"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
-y18n@^3.2.1:
+y18n@^3.2.0, y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
@@ -3986,6 +4125,18 @@ yargs-parser@^4.2.0:
   dependencies:
     camelcase "^3.0.0"
 
+yargs@^3.32.0:
+  version "3.32.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
+  dependencies:
+    camelcase "^2.0.1"
+    cliui "^3.0.3"
+    decamelize "^1.1.1"
+    os-locale "^1.4.0"
+    string-width "^1.0.1"
+    window-size "^0.1.4"
+    y18n "^3.2.0"
+
 yargs@^4.2.0:
   version "4.8.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-4.8.1.tgz#c0c42924ca4aaa6b0e6da1739dfb216439f9ddc0"