diff --git a/client/scripts/start.js b/client/scripts/start.js
index b62903d0..386db078 100644
--- a/client/scripts/start.js
+++ b/client/scripts/start.js
@@ -20,7 +20,10 @@ const paths = require('../../shared/config/paths');
 const config = require('../config/webpack.config.dev');
 const createDevServerConfig = require('../config/webpackDevServer.config');
 
-const userConfig = require('../../config');
+const {proxy: floodServerProxy} = require('yargs').env('FLOOD_OPTION_').option('proxy', {
+  default: 'http://127.0.0.1:3000',
+  type: 'string',
+}).argv;
 
 const isInteractive = process.stdout.isTTY;
 
@@ -46,7 +49,7 @@ choosePort(HOST, DEFAULT_PORT)
     // Create a webpack compiler that is configured with custom messages.
     const compiler = webpack(config);
     // Serve webpack assets generated by the compiler over a web sever.
-    const serverConfig = createDevServerConfig(userConfig.floodServerProxy, urls.lanUrlForConfig);
+    const serverConfig = createDevServerConfig(floodServerProxy, urls.lanUrlForConfig);
     const devServer = new WebpackDevServer(compiler, serverConfig);
     // Launch WebpackDevServer.
     devServer.listen(port, HOST, (err) => {
diff --git a/config.ts b/config.ts
index 66c6adfb..29646061 100644
--- a/config.ts
+++ b/config.ts
@@ -155,12 +155,6 @@ const {argv} = yargs
     hidden: true,
     type: 'string',
   })
-  .option('proxy', {
-    default: 'http://127.0.0.1:3000',
-    describe: 'DEV ONLY: See the "Local Development" section of README.md',
-    hidden: true,
-    type: 'string',
-  })
   .option('test', {
     default: false,
     describe: 'DEV ONLY: Test setup',
@@ -291,7 +285,6 @@ const result = configSchema.safeParse({
   configUser: connectionSettings,
   floodServerHost: argv.host,
   floodServerPort: argv.port,
-  floodServerProxy: argv.proxy,
   maxHistoryStates: argv.maxhistorystates,
   torrentClientPollInterval: argv.clientpoll,
   torrentClientPollIntervalIdle: argv.clientpollidle,
diff --git a/shared/schema/Config.ts b/shared/schema/Config.ts
index 54bec540..56cd8272 100644
--- a/shared/schema/Config.ts
+++ b/shared/schema/Config.ts
@@ -73,11 +73,6 @@ export const configSchema = object({
   // The port that Flood should listen for web connections on. [default: 3000]
   floodServerPort: number().int().positive(),
 
-  // CLI argument: --proxy
-  // Used for development only. Not used in production.
-  // See the "Local Development" section of README.md for detail.
-  floodServerProxy: string().url().optional(),
-
   // CLI argument: --maxhistorystates
   // Flood keeps a history of torrent download and upload speeds.
   // This value dictates the number of individual records per period to keep.