diff --git a/gui/esbuild.js b/gui/esbuild.js
index e647de2b..ae41211b 100644
--- a/gui/esbuild.js
+++ b/gui/esbuild.js
@@ -1,8 +1,10 @@
-import { build } from 'esbuild';
+import { build, context } from 'esbuild';
 import { join } from 'path';
 import alias from 'esbuild-plugin-alias';
+import { copy } from 'esbuild-plugin-copy';
 
-const debug = process.env['DEBUG'] === 'TRUE'
+const debug = process.env['DEBUG'] === 'TRUE';
+const watch = process.env['WATCH'] === 'TRUE';
 const root = process.cwd();
 
 const plugins = [];
@@ -14,7 +16,7 @@ if (debug) {
     }));
 }
 
-build({
+const config = {
     bundle: true,
     define: {
         global: 'window',
@@ -27,4 +29,40 @@ build({
     platform: 'browser',
     plugins,
     sourcemap: true,
-}).catch(() => process.exit(1));
+};
+
+if(watch) {
+    const copyArray = (files) => files.map(file => 
+        copy({
+            resolveFrom: 'cwd',
+            assets: {
+                from: [file],
+                to: ['out/'],
+            },
+        })
+    );
+
+    const ctx = await context({
+        ...config,
+        entryPoints: [
+            join(root, 'src/main.tsx'),
+        ],
+        plugins: [
+            ...plugins,
+            ...copyArray(['src/index.html', 'examples/config.json']),
+        ],
+        banner: {
+            js: `new EventSource('/esbuild').addEventListener('change', () => location.reload());`,
+        },
+    });
+
+    await ctx.watch();
+
+    const { host, port } = await ctx.serve({
+        servedir: 'out/',
+    });
+
+    console.log(`Serving on http://${host}:${port}`);
+} else {
+    build(config).catch(() => process.exit(1));
+}
\ No newline at end of file
diff --git a/gui/package.json b/gui/package.json
index 960ae092..eeddedb9 100644
--- a/gui/package.json
+++ b/gui/package.json
@@ -40,6 +40,7 @@
     "chai-as-promised": "^7.1.1",
     "esbuild": "^0.17.0",
     "esbuild-plugin-alias": "^0.2.1",
+    "esbuild-plugin-copy": "^2.0.2",
     "eslint": "^8.31.0",
     "eslint-plugin-chai": "^0.0.1",
     "eslint-plugin-chai-expect": "^3.0.0",
diff --git a/gui/yarn.lock b/gui/yarn.lock
index 97ce6285..ebd8ec9c 100644
--- a/gui/yarn.lock
+++ b/gui/yarn.lock
@@ -990,7 +990,7 @@ chalk@^2.0.0:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chalk@^4.0.0, chalk@^4.1.0:
+chalk@^4.0.0, chalk@^4.1.0, chalk@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01"
   integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
@@ -1299,6 +1299,15 @@ esbuild-plugin-alias@^0.2.1:
   resolved "https://registry.yarnpkg.com/esbuild-plugin-alias/-/esbuild-plugin-alias-0.2.1.tgz#45a86cb941e20e7c2bc68a2bea53562172494fcb"
   integrity sha512-jyfL/pwPqaFXyKnj8lP8iLk6Z0m099uXR45aSN8Av1XD4vhvQutxxPzgA2bTcAwQpa1zCXDcWOlhFgyP3GKqhQ==
 
+esbuild-plugin-copy@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/esbuild-plugin-copy/-/esbuild-plugin-copy-2.0.2.tgz#3c215c421b35a4e48a3b3c5362e75a95602d9c4f"
+  integrity sha512-HlDgkHXagBCwaoB8tlQFeH08/i5a2ey6Pc26annV1YcG5CkAHzzRzmCwp3wdi5KHI//HVUgipS+Zsy2tQmn9gQ==
+  dependencies:
+    chalk "^4.1.2"
+    fs-extra "^10.0.1"
+    globby "^11.0.3"
+
 esbuild@^0.17.0:
   version "0.17.8"
   resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.17.8.tgz#f7f799abc7cdce3f0f2e3e0c01f120d4d55193b4"
@@ -1633,6 +1642,15 @@ foreground-child@^2.0.0:
     cross-spawn "^7.0.0"
     signal-exit "^3.0.2"
 
+fs-extra@^10.0.1:
+  version "10.1.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.1.0.tgz#02873cfbc4084dde127eaa5f9905eef2325d1abf"
+  integrity sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==
+  dependencies:
+    graceful-fs "^4.2.0"
+    jsonfile "^6.0.1"
+    universalify "^2.0.0"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -1742,7 +1760,7 @@ globalthis@^1.0.3:
   dependencies:
     define-properties "^1.1.3"
 
-globby@^11.1.0:
+globby@^11.0.3, globby@^11.1.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-11.1.0.tgz#bd4be98bb042f83d796f7e3811991fbe82a0d34b"
   integrity sha512-jhIXaOzy1sb8IyocaruWSn1TjmnBVs8Ayhcy83rmxNJ8q2uWKCAj3CnJY+KpGSXCueAPc0i05kVvVKtP1t9S3g==
@@ -1761,6 +1779,11 @@ gopd@^1.0.1:
   dependencies:
     get-intrinsic "^1.1.3"
 
+graceful-fs@^4.1.6, graceful-fs@^4.2.0:
+  version "4.2.10"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.10.tgz#147d3a006da4ca3ce14728c7aefc287c367d7a6c"
+  integrity sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==
+
 grapheme-splitter@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/grapheme-splitter/-/grapheme-splitter-1.0.4.tgz#9cf3a665c6247479896834af35cf1dbb4400767e"
@@ -2118,6 +2141,15 @@ json5@^1.0.1:
   dependencies:
     minimist "^1.2.0"
 
+jsonfile@^6.0.1:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-6.1.0.tgz#bc55b2634793c679ec6403094eb13698a6ec0aae"
+  integrity sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==
+  dependencies:
+    universalify "^2.0.0"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 just-extend@^4.0.2:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/just-extend/-/just-extend-4.2.1.tgz#ef5e589afb61e5d66b24eca749409a8939a8c744"
@@ -3029,6 +3061,11 @@ unbox-primitive@^1.0.2:
     has-symbols "^1.0.3"
     which-boxed-primitive "^1.0.2"
 
+universalify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"
+  integrity sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==
+
 unload@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/unload/-/unload-2.2.0.tgz#ccc88fdcad345faa06a92039ec0f80b488880ef7"