diff --git a/package.json b/package.json
index 4de542a..36d3289 100644
--- a/package.json
+++ b/package.json
@@ -17,12 +17,7 @@
   "author": "marcobaobao",
   "license": "ISC",
   "dependencies": {
-    "@koa/cors": "^3.1.0",
     "better-sqlite3": "^7.4.5",
-    "chart.js": "^3.6.0",
-    "koa": "^2.13.4",
-    "koa-static": "^5.0.0",
-    "ordered-binary": "^1.2.1",
     "react": "^17.0.2",
     "react-bootstrap": "2.0.2",
     "react-bootstrap-icons": "^1.7.2",
@@ -39,9 +34,6 @@
     "parcel": "^2.0.1",
     "typescript": "^4.5.2",
     "@types/better-sqlite3": "^7.4.2",
-    "@types/koa": "^2.13.4",
-    "@types/koa-static": "^4.0.2",
-    "@types/koa__cors": "^3.1.1",
     "@types/node": "^17.0.13",
     "@types/uuid": "^8.3.4"
   }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 969998b..4ab4e2c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,7 +1,6 @@
 lockfileVersion: 5.3
 
 specifiers:
-  '@koa/cors': ^3.1.0
   '@parcel/transformer-yaml': ^2.2.1
   '@types/better-sqlite3': ^7.4.2
   '@types/koa': ^2.13.4
@@ -10,10 +9,6 @@ specifiers:
   '@types/node': ^17.0.13
   '@types/uuid': ^8.3.4
   better-sqlite3: ^7.4.5
-  chart.js: ^3.6.0
-  koa: ^2.13.4
-  koa-static: ^5.0.0
-  ordered-binary: ^1.2.1
   parcel: ^2.0.1
   react: ^17.0.2
   react-bootstrap: 2.0.2
@@ -28,16 +23,11 @@ specifiers:
   uuid: ^8.3.2
 
 dependencies:
-  '@koa/cors': 3.1.0
   better-sqlite3: 7.5.0
-  chart.js: 3.7.0
-  koa: 2.13.4
-  koa-static: 5.0.0
-  ordered-binary: 1.2.3
   react: 17.0.2
   react-bootstrap: 2.0.2_react-dom@17.0.2+react@17.0.2
   react-bootstrap-icons: 1.7.2_react@17.0.2
-  react-chartjs-2: 4.0.1_chart.js@3.7.0+react@17.0.2
+  react-chartjs-2: 4.0.1_react@17.0.2
   react-dom: 17.0.2_react@17.0.2
   rxjs: 7.5.2
   socket.io: 4.4.1
@@ -290,13 +280,6 @@ packages:
     resolution: {integrity: sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg==}
     dev: true
 
-  /@koa/cors/3.1.0:
-    resolution: {integrity: sha512-7ulRC1da/rBa6kj6P4g2aJfnET3z8Uf3SWu60cjbtxTA5g8lxRdX/Bd2P92EagGwwAhANeNw8T8if99rJliR6Q==}
-    engines: {node: '>= 8.0.0'}
-    dependencies:
-      vary: 1.1.2
-    dev: false
-
   /@nodelib/fs.scandir/2.1.5:
     resolution: {integrity: sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==}
     engines: {node: '>= 8'}
@@ -1637,14 +1620,6 @@ packages:
     engines: {node: '>= 0.8'}
     dev: true
 
-  /cache-content-type/1.0.1:
-    resolution: {integrity: sha512-IKufZ1o4Ut42YUrZSo8+qnMTrFuKkvyoLXUywKz9GJ5BrhOFGhLdkx9sG4KAnVvbY6kEcSFjLQul+DVmBm2bgA==}
-    engines: {node: '>= 6.0.0'}
-    dependencies:
-      mime-types: 2.1.34
-      ylru: 1.2.1
-    dev: false
-
   /call-bind/1.0.2:
     resolution: {integrity: sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==}
     dependencies:
@@ -1687,10 +1662,6 @@ packages:
       supports-color: 7.2.0
     dev: true
 
-  /chart.js/3.7.0:
-    resolution: {integrity: sha512-31gVuqqKp3lDIFmzpKIrBeum4OpZsQjSIAqlOpgjosHDJZlULtvwLEZKtEhIAZc7JMPaHlYMys40Qy9Mf+1AAg==}
-    dev: false
-
   /chownr/1.1.4:
     resolution: {integrity: sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==}
     dev: false
@@ -1733,11 +1704,6 @@ packages:
     engines: {node: '>=0.8'}
     dev: true
 
-  /co/4.6.0:
-    resolution: {integrity: sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=}
-    engines: {iojs: '>= 1.0.0', node: '>= 0.12.0'}
-    dev: false
-
   /code-point-at/1.1.0:
     resolution: {integrity: sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=}
     engines: {node: '>=0.10.0'}
@@ -1816,18 +1782,6 @@ packages:
     engines: {node: '>= 0.6'}
     dev: true
 
-  /content-disposition/0.5.4:
-    resolution: {integrity: sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      safe-buffer: 5.2.1
-    dev: false
-
-  /content-type/1.0.4:
-    resolution: {integrity: sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
   /convert-source-map/1.8.0:
     resolution: {integrity: sha512-+OQdjP49zViI/6i7nIJpA8rAl4sV/JdPfU9nZs3VqOwGIgizICvuN2ru6fMd+4llL0tar18UYJXfZ/TWtmhUjA==}
     dependencies:
@@ -1839,14 +1793,6 @@ packages:
     engines: {node: '>= 0.6'}
     dev: false
 
-  /cookies/0.8.0:
-    resolution: {integrity: sha512-8aPsApQfebXnuI+537McwYsDtjVxGm8gTIzQI3FDW6t5t/DAhERxtnbEPN/8RX+uZthoz4eCOgloXaE5cYyNow==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      depd: 2.0.0
-      keygrip: 1.1.0
-    dev: false
-
   /core-js/3.20.3:
     resolution: {integrity: sha512-vVl8j8ph6tRS3B8qir40H7yw7voy17xL0piAjlbBUsH7WIfzoedL/ZOr1OV9FyZQLWXsayOJyV4tnRyXR85/ag==}
     requiresBuild: true
@@ -2044,12 +1990,6 @@ packages:
       ms: 2.0.0
     dev: true
 
-  /debug/3.2.7:
-    resolution: {integrity: sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==}
-    dependencies:
-      ms: 2.1.3
-    dev: false
-
   /debug/4.3.3:
     resolution: {integrity: sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==}
     engines: {node: '>=6.0'}
@@ -2068,10 +2008,6 @@ packages:
       mimic-response: 3.1.0
     dev: false
 
-  /deep-equal/1.0.1:
-    resolution: {integrity: sha1-9dJgKStmDghO/0zbyfCK0yR0SLU=}
-    dev: false
-
   /deep-extend/0.6.0:
     resolution: {integrity: sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==}
     engines: {node: '>=4.0.0'}
@@ -2094,16 +2030,6 @@ packages:
     resolution: {integrity: sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=}
     dev: false
 
-  /depd/1.1.2:
-    resolution: {integrity: sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /depd/2.0.0:
-    resolution: {integrity: sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==}
-    engines: {node: '>= 0.8'}
-    dev: false
-
   /dequal/2.0.2:
     resolution: {integrity: sha512-q9K8BlJVxK7hQYqa6XISGmBZbtQQWVXSrRrWreHC94rMt1QL/Impruc+7p2CYSYuVIUr+YCt6hjrs1kkdJRTug==}
     engines: {node: '>=6'}
@@ -2116,10 +2042,6 @@ packages:
       minimalistic-assert: 1.0.1
     dev: true
 
-  /destroy/1.0.4:
-    resolution: {integrity: sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=}
-    dev: false
-
   /detect-libc/1.0.3:
     resolution: {integrity: sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=}
     engines: {node: '>=0.10'}
@@ -2183,6 +2105,7 @@ packages:
 
   /ee-first/1.1.1:
     resolution: {integrity: sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=}
+    dev: true
 
   /ejs/3.1.6:
     resolution: {integrity: sha512-9lt9Zse4hPucPkoP7FHDF0LQAlGyF9JVpnClFLFH3aSSbxmyoqINRpp/9wePWJTUl4KOQwRL72Iw3InHPDkoGw==}
@@ -2223,6 +2146,7 @@ packages:
   /encodeurl/1.0.2:
     resolution: {integrity: sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=}
     engines: {node: '>= 0.8'}
+    dev: true
 
   /end-of-stream/1.4.4:
     resolution: {integrity: sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==}
@@ -2336,6 +2260,7 @@ packages:
 
   /escape-html/1.0.3:
     resolution: {integrity: sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=}
+    dev: true
 
   /escape-string-regexp/1.0.5:
     resolution: {integrity: sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=}
@@ -2456,11 +2381,6 @@ packages:
     engines: {node: '>=0.4.x'}
     dev: true
 
-  /fresh/0.5.2:
-    resolution: {integrity: sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
   /fs-constants/1.0.0:
     resolution: {integrity: sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==}
     dev: false
@@ -2577,12 +2497,14 @@ packages:
   /has-symbols/1.0.2:
     resolution: {integrity: sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw==}
     engines: {node: '>= 0.4'}
+    dev: true
 
   /has-tostringtag/1.0.0:
     resolution: {integrity: sha512-kFjcSNhnlGV1kyoGk7OXKSawH5JOb/LzUc5w9B02hOTO0dfFRjbHQKvg1d6cf3HbeUmtU9VbbV3qzZ2Teh97WQ==}
     engines: {node: '>= 0.4'}
     dependencies:
       has-symbols: 1.0.2
+    dev: true
 
   /has-unicode/2.0.1:
     resolution: {integrity: sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=}
@@ -2667,35 +2589,6 @@ packages:
       entities: 3.0.1
     dev: true
 
-  /http-assert/1.5.0:
-    resolution: {integrity: sha512-uPpH7OKX4H25hBmU6G1jWNaqJGpTXxey+YOUizJUAgu0AjLUeC8D73hTrhvDS5D+GJN1DN1+hhc/eF/wpxtp0w==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      deep-equal: 1.0.1
-      http-errors: 1.8.1
-    dev: false
-
-  /http-errors/1.6.3:
-    resolution: {integrity: sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      depd: 1.1.2
-      inherits: 2.0.3
-      setprototypeof: 1.1.0
-      statuses: 1.5.0
-    dev: false
-
-  /http-errors/1.8.1:
-    resolution: {integrity: sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      depd: 1.1.2
-      inherits: 2.0.4
-      setprototypeof: 1.2.0
-      statuses: 1.5.0
-      toidentifier: 1.0.1
-    dev: false
-
   /http-proxy-middleware/2.0.2:
     resolution: {integrity: sha512-XtmDN5w+vdFTBZaYhdJAbMqn0DP/EhkUaAeo963mojwpKMMbw6nivtFKw07D7DDOH745L5k0VL0P8KRYNEVF/g==}
     engines: {node: '>=12.0.0'}
@@ -2774,10 +2667,6 @@ packages:
       wrappy: 1.0.2
     dev: true
 
-  /inherits/2.0.3:
-    resolution: {integrity: sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=}
-    dev: false
-
   /inherits/2.0.4:
     resolution: {integrity: sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==}
 
@@ -2866,6 +2755,7 @@ packages:
     engines: {node: '>= 0.4'}
     dependencies:
       has-tostringtag: 1.0.0
+    dev: true
 
   /is-glob/4.0.3:
     resolution: {integrity: sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==}
@@ -3022,77 +2912,6 @@ packages:
       minimist: 1.2.5
     dev: true
 
-  /keygrip/1.1.0:
-    resolution: {integrity: sha512-iYSchDJ+liQ8iwbSI2QqsQOvqv58eJCEanyJPJi+Khyu8smkcKSFUCbPwzFcL7YVtZ6eONjqRX/38caJ7QjRAQ==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      tsscmp: 1.0.6
-    dev: false
-
-  /koa-compose/4.1.0:
-    resolution: {integrity: sha512-8ODW8TrDuMYvXRwra/Kh7/rJo9BtOfPc6qO8eAfC80CnCvSjSl0bkRM24X6/XBBEyj0v1nRUQ1LyOy3dbqOWXw==}
-    dev: false
-
-  /koa-convert/2.0.0:
-    resolution: {integrity: sha512-asOvN6bFlSnxewce2e/DK3p4tltyfC4VM7ZwuTuepI7dEQVcvpyFuBcEARu1+Hxg8DIwytce2n7jrZtRlPrARA==}
-    engines: {node: '>= 10'}
-    dependencies:
-      co: 4.6.0
-      koa-compose: 4.1.0
-    dev: false
-
-  /koa-send/5.0.1:
-    resolution: {integrity: sha512-tmcyQ/wXXuxpDxyNXv5yNNkdAMdFRqwtegBXUaowiQzUKqJehttS0x2j0eOZDQAyloAth5w6wwBImnFzkUz3pQ==}
-    engines: {node: '>= 8'}
-    dependencies:
-      debug: 4.3.3
-      http-errors: 1.8.1
-      resolve-path: 1.4.0
-    transitivePeerDependencies:
-      - supports-color
-    dev: false
-
-  /koa-static/5.0.0:
-    resolution: {integrity: sha512-UqyYyH5YEXaJrf9S8E23GoJFQZXkBVJ9zYYMPGz919MSX1KuvAcycIuS0ci150HCoPf4XQVhQ84Qf8xRPWxFaQ==}
-    engines: {node: '>= 7.6.0'}
-    dependencies:
-      debug: 3.2.7
-      koa-send: 5.0.1
-    transitivePeerDependencies:
-      - supports-color
-    dev: false
-
-  /koa/2.13.4:
-    resolution: {integrity: sha512-43zkIKubNbnrULWlHdN5h1g3SEKXOEzoAlRsHOTFpnlDu8JlAOZSMJBLULusuXRequboiwJcj5vtYXKB3k7+2g==}
-    engines: {node: ^4.8.4 || ^6.10.1 || ^7.10.1 || >= 8.1.4}
-    dependencies:
-      accepts: 1.3.7
-      cache-content-type: 1.0.1
-      content-disposition: 0.5.4
-      content-type: 1.0.4
-      cookies: 0.8.0
-      debug: 4.3.3
-      delegates: 1.0.0
-      depd: 2.0.0
-      destroy: 1.0.4
-      encodeurl: 1.0.2
-      escape-html: 1.0.3
-      fresh: 0.5.2
-      http-assert: 1.5.0
-      http-errors: 1.8.1
-      is-generator-function: 1.0.10
-      koa-compose: 4.1.0
-      koa-convert: 2.0.0
-      on-finished: 2.3.0
-      only: 0.0.2
-      parseurl: 1.3.3
-      statuses: 1.5.0
-      type-is: 1.6.18
-      vary: 1.1.2
-    transitivePeerDependencies:
-      - supports-color
-    dev: false
-
   /lilconfig/2.0.4:
     resolution: {integrity: sha512-bfTIN7lEsiooCocSISTWXkiWJkRqtL9wYtYy+8EK3Y41qh3mpwPU0ycTOgjdY9ErwXCc8QyrQp82bdL0Xkm9yA==}
     engines: {node: '>=10'}
@@ -3174,11 +2993,6 @@ packages:
     resolution: {integrity: sha512-dn6wd0uw5GsdswPFfsgMp5NSB0/aDe6fK94YJV/AJDYXL6HVLWBsxeq7js7Ad+mU2K9LAlwpk6kN2D5mwCPVow==}
     dev: true
 
-  /media-typer/0.3.0:
-    resolution: {integrity: sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
   /merge2/1.4.1:
     resolution: {integrity: sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==}
     engines: {node: '>= 8'}
@@ -3269,10 +3083,6 @@ packages:
   /ms/2.1.2:
     resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
 
-  /ms/2.1.3:
-    resolution: {integrity: sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==}
-    dev: false
-
   /msgpackr-extract/1.0.16:
     resolution: {integrity: sha512-fxdRfQUxPrL/TizyfYfMn09dK58e+d65bRD/fcaVH4052vj30QOzzqxcQIS7B0NsqlypEQ/6Du3QmP2DhWFfCA==}
     requiresBuild: true
@@ -3407,6 +3217,7 @@ packages:
     engines: {node: '>= 0.8'}
     dependencies:
       ee-first: 1.1.1
+    dev: true
 
   /once/1.4.0:
     resolution: {integrity: sha1-WDsap3WWHUsROsF9nFC6753Xa9E=}
@@ -3420,10 +3231,6 @@ packages:
       mimic-fn: 2.1.0
     dev: true
 
-  /only/0.0.2:
-    resolution: {integrity: sha1-Kv3oTQPlC5qO3EROMGEKcCle37Q=}
-    dev: false
-
   /open/7.4.2:
     resolution: {integrity: sha512-MVHddDVweXZF3awtlAS+6pgKLlm/JgxZ90+/NBurBoQctVOOB/zDdVjcyPzQ+0laDGbsWgrRkflI65sQeOgT9Q==}
     engines: {node: '>=8'}
@@ -3449,6 +3256,7 @@ packages:
 
   /ordered-binary/1.2.3:
     resolution: {integrity: sha512-fEwMk8TNUtzQDjXKYS2ANW3fNZ/gMReCPOAsLHaqw+UDnq/8ddXAcX4lGRpTK7kAghAjkmJs1EXXbcrDbg+ruw==}
+    dev: true
 
   /os-browserify/0.3.0:
     resolution: {integrity: sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=}
@@ -3531,6 +3339,7 @@ packages:
   /parseurl/1.3.3:
     resolution: {integrity: sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==}
     engines: {node: '>= 0.8'}
+    dev: true
 
   /path-browserify/1.0.1:
     resolution: {integrity: sha512-b7uo2UCUOYZcnF/3ID0lulOJi/bafxa1xPe7ZPsammBSpjSWQkjNxlt635YGS2MiR9GjvuXCtz2emr3jbsz98g==}
@@ -3539,6 +3348,7 @@ packages:
   /path-is-absolute/1.0.1:
     resolution: {integrity: sha1-F0uSaHNVNP+8es5r9TpanhtcX18=}
     engines: {node: '>=0.10.0'}
+    dev: true
 
   /path-is-inside/1.0.2:
     resolution: {integrity: sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM=}
@@ -4161,13 +3971,12 @@ packages:
       warning: 4.0.3
     dev: false
 
-  /react-chartjs-2/4.0.1_chart.js@3.7.0+react@17.0.2:
+  /react-chartjs-2/4.0.1_react@17.0.2:
     resolution: {integrity: sha512-q8bgWzKoFvBvD7YcjT/hXG8jt55TaMAuJ1dmI3tKFJ7CijUWYz4pIfOhkTI6PBTwqu/pmeWsClBRd/7HiWzN1g==}
     peerDependencies:
       chart.js: ^3.5.0
       react: ^16.8.0 || ^17.0.0
     dependencies:
-      chart.js: 3.7.0
       react: 17.0.2
     dev: false
 
@@ -4248,14 +4057,6 @@ packages:
     engines: {node: '>=4'}
     dev: true
 
-  /resolve-path/1.4.0:
-    resolution: {integrity: sha1-xL2p9e+y/OZSR4c6s2u02DT+Fvc=}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      http-errors: 1.6.3
-      path-is-absolute: 1.0.1
-    dev: false
-
   /restore-cursor/3.1.0:
     resolution: {integrity: sha512-l+sSefzHpj5qimhFSE5a8nufZYAM3sBSVMAPtYkmC+4EH2anSGaEMXSD0izRQbu9nfyQ9y5JrVmp7E8oZrUjvA==}
     engines: {node: '>=8'}
@@ -4351,14 +4152,6 @@ packages:
     resolution: {integrity: sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=}
     dev: true
 
-  /setprototypeof/1.1.0:
-    resolution: {integrity: sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==}
-    dev: false
-
-  /setprototypeof/1.2.0:
-    resolution: {integrity: sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==}
-    dev: false
-
   /sha.js/2.4.11:
     resolution: {integrity: sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==}
     hasBin: true
@@ -4516,6 +4309,7 @@ packages:
   /statuses/1.5.0:
     resolution: {integrity: sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=}
     engines: {node: '>= 0.6'}
+    dev: true
 
   /stream-browserify/3.0.0:
     resolution: {integrity: sha512-H73RAHsVBapbim0tU2JwwOiXUj+fikfiaoYAKHF3VJfA0pe2BCzkhAHBlLG6REzE+2WNZcxOXjK7lkso+9euLA==}
@@ -4716,20 +4510,10 @@ packages:
       is-number: 7.0.0
     dev: true
 
-  /toidentifier/1.0.1:
-    resolution: {integrity: sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==}
-    engines: {node: '>=0.6'}
-    dev: false
-
   /tslib/2.3.1:
     resolution: {integrity: sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==}
     dev: false
 
-  /tsscmp/1.0.6:
-    resolution: {integrity: sha512-LxhtAkPDTkVCMQjt2h6eBVY28KCjikZqZfMcC15YBeNjkgUpdCfBu5HoiOTDu86v6smE8yOjyEktJ8hlbANHQA==}
-    engines: {node: '>=0.6.x'}
-    dev: false
-
   /tty-browserify/0.0.1:
     resolution: {integrity: sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw==}
     dev: true
@@ -4750,14 +4534,6 @@ packages:
     engines: {node: '>=10'}
     dev: true
 
-  /type-is/1.6.18:
-    resolution: {integrity: sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      media-typer: 0.3.0
-      mime-types: 2.1.34
-    dev: false
-
   /typescript/4.5.5:
     resolution: {integrity: sha512-TCTIul70LyWe6IJWT8QSYeA54WQe8EjQFU4wY52Fasj5UKx88LNYKCgBEHcOMOrFF1rKGbD8v/xcNWVUq9SymA==}
     engines: {node: '>=4.2.0'}
@@ -4953,8 +4729,3 @@ packages:
   /yeast/0.1.2:
     resolution: {integrity: sha1-AI4G2AlDIMNy28L47XagymyKxBk=}
     dev: false
-
-  /ylru/1.2.1:
-    resolution: {integrity: sha512-faQrqNMzcPCHGVC2aaOINk13K+aaBDUPjGWl0teOXywElLjyVAB6Oe2jj62jHYtwsU49jXhScYbvPENK+6zAvQ==}
-    engines: {node: '>= 4.0.0'}
-    dev: false
diff --git a/server/src/core/HTTPServer.ts b/server/src/core/HTTPServer.ts
new file mode 100644
index 0000000..4c0f8e4
--- /dev/null
+++ b/server/src/core/HTTPServer.ts
@@ -0,0 +1,86 @@
+import http from 'http';
+import url from 'url';
+import fs, { open, close } from 'fs';
+import { parse, join } from 'path';
+
+namespace server {
+    export const mimes = {
+        '.html': 'text/html',
+        '.ico': 'image/x-icon',
+        '.js': 'text/javascript',
+        '.json': 'application/json',
+        '.css': 'text/css',
+        '.png': 'image/png',
+        '.jpg': 'image/jpeg',
+        '.webp': 'image/webp',
+    };
+}
+
+class Jean {
+    private workingDir: string;
+
+    /**
+     * Jean static file server its only purpose is serving SPA and images
+     * with the lowest impact possible.
+     * @param workingDir sets the root directory automatically trying index.html
+     * If specified the file in addition to the directory it will serve the
+     * file directly.  
+     * *e.g* new Jean(path.join(__dirname, 'dist')) will try
+     * index.html from the dist directory;           
+     * @author me :D
+     */
+
+    constructor(workingDir: string) {
+        this.workingDir = workingDir;
+    }
+
+    /**
+     * Create a static file server
+     * @returns an instance of a standard NodeJS http.Server
+     */
+    public createServer(): http.Server {
+        return http.createServer((req, res) => {
+            // parse the current given url
+            const parsedUrl = url.parse(req.url, false)
+            // extract the pathname and guard it with the working dir
+            let pathname = join(this.workingDir, `.${parsedUrl.pathname}`);
+            // extract the file extension
+            const ext = parse(pathname).ext;
+
+            // open the file or directory and fetch its descriptor
+            open(pathname, 'r', (err, fd) => {
+                // whoops, not found, send a 404
+                if (err) {
+                    res.statusCode = 404;
+                    res.end(`File ${pathname} not found!`);
+                    return;
+                }
+                // something's gone wrong it's not a file or a directory
+                fs.fstat(fd, (err, stat) => {
+                    if (err) {
+                        res.statusCode = 500;
+                        res.end(err);
+                    }
+                    // try file index.html
+                    if (stat.isDirectory()) {
+                        pathname = join(pathname, 'index.html')
+                    }
+                    // read the file
+                    fs.readFile(pathname, (err, data) => {
+                        if (err) {
+                            res.statusCode = 500;
+                            res.end(`Error reading the file: ${err}`);
+                        } else {
+                            // infer it's extension otherwise it's the index.html
+                            res.setHeader('Content-type', server.mimes[ext] || 'text/html');
+                            res.end(data);
+                            close(fd);
+                        }
+                    });
+                })
+            });
+        })
+    }
+}
+
+export default Jean;
\ No newline at end of file
diff --git a/server/src/core/Process.ts b/server/src/core/Process.ts
index 59ce29d..7de9208 100644
--- a/server/src/core/Process.ts
+++ b/server/src/core/Process.ts
@@ -2,6 +2,7 @@ import { spawn } from 'child_process';
 import { join } from 'path';
 import { Readable } from 'stream';
 import { deleteDownloadByPID, insertDownload } from '../db/db';
+import { ISettings } from '../interfaces/ISettings';
 import Logger from '../utils/BetterLogger';
 
 const log = new Logger();
@@ -9,15 +10,15 @@ const log = new Logger();
 /**
  * Represents a download process that spawns yt-dlp.
  * @constructor
- * @param {string} url - The downlaod url.
- * @param {Array<String>} params - The cli arguments passed by the frontend.
- * @param {*} settings - The download settings passed by the frontend.
+ * @param url - The downlaod url.
+ * @param params - The cli arguments passed by the frontend.
+ * @param settings - The download settings passed by the frontend.
  */
 
 class Process {
     private url: string;
     private params: Array<string>;
-    private settings: any;
+    private settings: ISettings;
     private stdout: Readable;
     private pid: number;
     private info: any;
@@ -35,11 +36,11 @@ class Process {
 
     /**
      * function that launch the download process, sets the stdout property and the pid
-     * @param {Function} callback not yet implemented
-     * @returns {Promise<this>} the process instance
+     * @param callback not yet implemented
+     * @returns the process instance
      */
     async start(callback?: Function): Promise<this> {
-        await this.#__internalGetInfo();
+        await this.internalGetInfo();
 
         const ytldp = spawn(this.exePath,
             ['-o', `${this.settings?.download_path || 'downloads/'}%(title)s.%(ext)s`]
@@ -69,8 +70,8 @@ class Process {
      * function used internally by the download process to fetch information, usually thumbnail and title
      * @returns Promise to the lock
      */
-    async #__internalGetInfo() {
-        let lock = true;
+    private async internalGetInfo() {
+        this.lock = true;
         let stdoutChunks = [];
         const ytdlpInfo = spawn(this.exePath, ['-s', '-j', this.url]);
 
@@ -93,7 +94,7 @@ class Process {
             }
         });
 
-        if (!lock) {
+        if (!this.lock) {
             return true;
         }
     }
diff --git a/server/src/core/downloader.ts b/server/src/core/downloader.ts
index 1515cdc..82ef969 100644
--- a/server/src/core/downloader.ts
+++ b/server/src/core/downloader.ts
@@ -3,14 +3,15 @@ import { from, interval } from 'rxjs';
 import { throttle } from 'rxjs/operators';
 import { pruneDownloads } from '../db/db';
 import { killProcess } from '../utils/procUtils';
+import { Socket } from 'socket.io';
+import { IPayload } from '../interfaces/IPayload';
+import { ISettings } from '../interfaces/ISettings';
 import Logger from '../utils/BetterLogger';
 import Process from './Process';
 import ProcessPool from './ProcessPool';
-import { Socket } from 'socket.io';
-import { IPayload } from '../interfaces/IPayload';
 
 // settings read from settings.json
-let settings;
+let settings: ISettings;
 let coldRestart = true;
 const log = new Logger();
 
@@ -20,7 +21,7 @@ try {
     settings = require('../settings.json');
 }
 catch (e) {
-    console.warn("settings.json not found");
+    log.warn('dl', 'settings.json not found');
 }
 
 /**
@@ -95,7 +96,6 @@ export async function retriveDownload(socket: Socket) {
     if (coldRestart) {
         coldRestart = false;
         let downloads = await pruneDownloads();
-        console.log(downloads)
         // sanitize
         downloads = [... new Set(downloads.filter(el => el !== undefined))];
         log.info('dl', `Cold restart, retrieving ${downloads.length} jobs`)
diff --git a/server/src/interfaces/ISettings.ts b/server/src/interfaces/ISettings.ts
new file mode 100644
index 0000000..b047abd
--- /dev/null
+++ b/server/src/interfaces/ISettings.ts
@@ -0,0 +1,3 @@
+export interface ISettings {
+    download_path: string
+}
\ No newline at end of file
diff --git a/server/src/main.ts b/server/src/main.ts
index 79f54e9..c1a09a1 100644
--- a/server/src/main.ts
+++ b/server/src/main.ts
@@ -1,19 +1,15 @@
-import Koa from 'koa';
-import serve from 'koa-static';
-import cors from '@koa/cors';
 import { logger, splash } from './utils/logger';
 import { join } from 'path';
 import { Server } from 'socket.io';
-import { createServer } from 'http';
 import { ytdlpUpdater } from './utils/updater';
 import { download, abortDownload, retriveDownload, abortAllDownloads } from './core/downloader';
-import Logger from './utils/BetterLogger';
 import { retrieveAll, init } from './db/db';
 import { getFreeDiskSpace } from './utils/procUtils';
+import Logger from './utils/BetterLogger';
+import Jean from './core/HTTPServer';
 
-const app = new Koa()
-const log = new Logger()
-const server = createServer(app.callback())
+const server = new Jean(join(__dirname, 'frontend')).createServer();
+const log = new Logger();
 const io = new Server(server, {
     cors: {
         origin: "*",
@@ -55,12 +51,9 @@ io.on('disconnect', (socket) => {
     logger('ws', `${socket.handshake.address} disconnected`)
 })
 
-app
-    .use(cors())
-    .use(serve(join(__dirname, 'frontend')))
 
 splash()
-log.info('koa', `Server started on port ${process.env.PORT || 3022}`)
+log.info('http', `Server started on port ${process.env.PORT || 3022}`)
 
 init()
     .then(() => server.listen(process.env.PORT || 3022))