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diff --git a/Omni/Jr/Web.hs b/Omni/Jr/Web.hs
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+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+
+-- : dep warp
+-- : dep servant-server
+-- : dep lucid
+-- : dep servant-lucid
+module Omni.Jr.Web
+  ( run,
+    defaultPort,
+  )
+where
+
+import Alpha
+import qualified Lucid
+import qualified Network.Wai.Handler.Warp as Warp
+import Servant
+import qualified Servant.HTML.Lucid as Lucid
+
+defaultPort :: Warp.Port
+defaultPort = 8080
+
+type API = Get '[Lucid.HTML] HomePage
+
+newtype HomePage = HomePage ()
+
+instance Lucid.ToHtml HomePage where
+  toHtmlRaw = Lucid.toHtml
+  toHtml (HomePage ()) =
+    Lucid.doctypehtml_ <| do
+      Lucid.head_ <| do
+        Lucid.title_ "Jr Web UI"
+        Lucid.meta_ [Lucid.charset_ "utf-8"]
+        Lucid.meta_
+          [ Lucid.name_ "viewport",
+            Lucid.content_ "width=device-width, initial-scale=1"
+          ]
+      Lucid.body_ <| do
+        Lucid.h1_ "Jr Web UI"
+
+api :: Proxy API
+api = Proxy
+
+server :: Server API
+server = pure (HomePage ())
+
+app :: Application
+app = serve api server
+
+run :: Warp.Port -> IO ()
+run port = do
+  putText <| "Starting Jr web server on port " <> tshow port
+  Warp.run port app