diff --git a/package-lock.json b/package-lock.json
index 9e575ab72..ea45afde2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,12 +18,139 @@
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+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz",
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+          "requires": {
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+        "strip-ansi": {
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+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
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@@ -5955,6 +8009,12 @@
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+      "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
+      "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
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+    "tsutils": {
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+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.21.0.tgz",
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+      "dev": true,
+      "requires": {
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+      "dependencies": {
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+          "version": "1.14.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
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+        }
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@@ -5994,6 +8071,21 @@
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       "dev": true
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+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
+      "integrity": "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "^1.2.1"
+      }
+    },
+    "type-fest": {
+      "version": "0.20.2",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
+      "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
@@ -6055,6 +8147,12 @@
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       "dev": true
     },
+    "v8-compile-cache": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.3.0.tgz",
+      "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
+      "dev": true
+    },
     "validate-npm-package-name": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/validate-npm-package-name/-/validate-npm-package-name-3.0.0.tgz",
@@ -6097,6 +8195,12 @@
         "string-width": "^1.0.2 || 2"
       }
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+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+      "dev": true
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     "wrappy": {
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diff --git a/package.json b/package.json
index 58b4de702..7e2e80548 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,10 @@
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     "@tsconfig/svelte": "^1.0.10",
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+    "@typescript-eslint/parser": "^4.26.1",
+    "eslint": "^7.28.0",
+    "eslint-plugin-svelte3": "^3.2.0",
     "snowpack": "^3.5.0",
     "svelte-check": "^1.5.2",
     "svelte-preprocess": "^4.7.2",