diff --git a/ui/README.md b/ui/README.md
index 9eef32c..dae13c2 100644
--- a/ui/README.md
+++ b/ui/README.md
@@ -1,9 +1,7 @@
 # Inbucket User Interface
 
 This directory contains the source code for the Inbucket web user interface.
-It is written in [Elm] 0.18, a *delightful language for reliable webapps.*
-
-The UI was bootstrapped with [Create Elm App].
+It is written in [Elm] 0.19, a *delightful language for reliable webapps.*
 
 ## Development
 
@@ -11,15 +9,18 @@ With `$INBUCKET` as the root of the git repository.
 
 One time setup (assuming [Node.js] is already installed):
 
-```
-npm i create-elm-app@1.10.4 -g
-```
-
-In terminal 1 (inbucket daemon):
-
 ```
 cd $INBUCKET/ui
-elm-app build
+npm i elm -g
+npm i
+npm run build
+```
+
+This will the create `node_modules`, `elm-stuff`, and `dist` directories.
+
+### Terminal 1: inbucket daemon
+
+```
 cd $INBUCKET
 make
 etc/dev-start.sh
@@ -29,17 +30,15 @@ Inbucket will start, with HTTP listening on port 9000.  You may verify the web
 UI is functional if this is your first time building Inbucket, but your dev/test
 cycle should favor the development server below.
 
-In terminal 2 (elm-app development server):
+### Terminal 2: webpack development server
 
 ```
 cd $INBUCKET/ui
-elm-app start
+npm run dev
 ```
 
-[Create Elm App] will start a development HTTP server listening on port 3000.
-You should use this server for UI development, as it features hot reload and the
-Elm debugger.
+npm will start a development HTTP server listening on port 3000.  You should use
+this server for UI development, as it features hot reload and the Elm debugger.
 
-[Create Elm App]: https://github.com/halfzebra/create-elm-app
 [Elm]:            https://elm-lang.org
 [Node.js]:        https://nodejs.org