diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..146754ce
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,9 @@
+FROM node:16-alpine
+
+WORKDIR /app
+
+COPY . .
+
+RUN npm install
+
+CMD [ "npm", "test" ]
diff --git a/package-lock.json b/package-lock.json
index 35c98b6b..5e199b58 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,1109 +1,1346 @@
 {
   "name": "contribute-to-open-source",
   "version": "2.0.0",
-  "lockfileVersion": 1,
+  "lockfileVersion": 3,
   "requires": true,
-  "dependencies": {
-    "acorn": {
+  "packages": {
+    "": {
+      "name": "contribute-to-open-source",
+      "version": "2.0.0",
+      "license": "MIT",
+      "devDependencies": {
+        "chai": "^4.0.0",
+        "eslint": "^3.18.0",
+        "eslint-config-airbnb-base": "^11.2.0",
+        "eslint-plugin-import": "^2.8.0",
+        "mocha": "^3.4.2",
+        "sinon": "^2.3.2",
+        "sinon-chai": "^2.10.0"
+      }
+    },
+    "node_modules/acorn": {
       "version": "5.7.2",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.2.tgz",
       "integrity": "sha512-cJrKCNcr2kv8dlDnbw+JPUGjHZzo4myaxOLmpOX8a+rgX94YeTcTMv/LFJUSByRpc+i4GgVnnhLxvMu/2Y+rqw==",
-      "dev": true
+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
     },
-    "acorn-jsx": {
+    "node_modules/acorn-jsx": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
-      "requires": {
-        "acorn": "3.3.0"
-      },
       "dependencies": {
-        "acorn": {
-          "version": "3.3.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
-          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
-          "dev": true
-        }
+        "acorn": "^3.0.4"
       }
     },
-    "ajv": {
+    "node_modules/acorn-jsx/node_modules/acorn": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+      "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/ajv": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
       "dev": true,
-      "requires": {
-        "co": "4.6.0",
-        "json-stable-stringify": "1.0.1"
+      "dependencies": {
+        "co": "^4.6.0",
+        "json-stable-stringify": "^1.0.1"
       }
     },
-    "ajv-keywords": {
+    "node_modules/ajv-keywords": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-1.5.1.tgz",
       "integrity": "sha1-MU3QpLM2j609/NxU7eYXG4htrzw=",
-      "dev": true
+      "dev": true,
+      "peerDependencies": {
+        "ajv": ">=4.10.0"
+      }
     },
-    "ansi-escapes": {
+    "node_modules/ansi-escapes": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
       "integrity": "sha1-06ioOzGapneTZisT52HHkRQiMG4=",
-      "dev": true
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
     },
-    "ansi-regex": {
+    "node_modules/ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
       "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-      "dev": true
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
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-    "ansi-styles": {
+    "node_modules/ansi-styles": {
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       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
       "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
-      "dev": true
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
     },
-    "argparse": {
+    "node_modules/argparse": {
       "version": "1.0.10",
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       "dev": true,
-      "requires": {
-        "sprintf-js": "1.0.3"
+      "dependencies": {
+        "sprintf-js": "~1.0.2"
       }
     },
-    "array-union": {
+    "node_modules/array-union": {
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       "dev": true,
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+      "dependencies": {
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+      },
+      "engines": {
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+      "dev": true,
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-      "dev": true
+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
     },
-    "babel-code-frame": {
+    "node_modules/babel-code-frame": {
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       "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
       "dev": true,
-      "requires": {
-        "chalk": "1.1.3",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+      "dependencies": {
+        "chalk": "^1.1.3",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.2"
       }
     },
-    "balanced-match": {
+    "node_modules/balanced-match": {
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       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
-    "brace-expansion": {
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       "dev": true,
-      "requires": {
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         "concat-map": "0.0.1"
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       "dev": true
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       "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
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+      "dependencies": {
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+        "check-error": "^1.0.1",
+        "deep-eql": "^3.0.0",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.0.0",
+        "type-detect": "^4.0.0"
+      },
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-        "has-ansi": "2.0.0",
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+      "dependencies": {
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+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^2.0.0"
+      },
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-      "dev": true
+      "dev": true,
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+      "deprecated": "CircularJSON is in maintenance only, flatted is its successor.",
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