Expand on Express vs. Core

_quarto.yml

@@ -237,9 +237,10 @@ website:
             - docs/reactive-foundations.qmd
             - docs/reactive-patterns.qmd
             - docs/reactive-mutable.qmd
-        - section: "Express vs Core"
+        - section: "Syntax modes"
           contents:
-            - docs/express-introduction.qmd
+            - docs/express-vs-core.qmd
+            - docs/express-or-core.qmd
             - docs/express-in-depth.qmd
             - docs/express-to-core.qmd
         - section: "Modules"

api/core/index.qmd

@@ -2,7 +2,7 @@
 
 This page outlines Shiny _Core_'s API reference.
 
-[Compared to Shiny Express](/docs/express-introduction.qmd), Shiny Core is more structured and verbose, but also more flexible and powerful.
+[Compared to Shiny Express](/docs/express-vs-core.qmd), Shiny Core is more structured and verbose, but also more flexible and powerful.
 
 Newcomers may want to start with [Shiny Express](../express/index.qmd) Shiny Core API.
 

api/express/index.qmd

@@ -2,8 +2,8 @@
 
 This page outlines Shiny _Express_'s API reference.
 
-[Compared to Shiny Core](/docs/express-introduction.qmd), Shiny Express is a simpler way to learn and create basic apps, but it is less flexible and powerful.
+[Compared to Shiny Core](/docs/express-vs-core.qmd), Shiny Express is a simpler way to learn and create basic apps, but it is less flexible and powerful.
 
-For an introduction to Shiny, see the [Quick Start tutorial](/docs/quick-start.qmd).
+For an introduction to Shiny, see the [tutorial](/docs/overview.qmd).
 
 {{< include _api_index.qmd >}}

api/index.qmd

@@ -2,7 +2,7 @@
 
 This page details the Shiny's full API.
 New users are encouraged to start from the [Quick Start tutorial](../docs/overview.qmd), and then come back here when you're ready to learn more.
-We recommend newcomers start with [Shiny Express](../docs/express-introduction.qmd) instead of the more structured Shiny Core API.
+We recommend newcomers start with [Shiny Express](../docs/express-vs-core.qmd) instead of the more structured Shiny Core API.
 
 ::: {.panel-tabset .panel-pills .border-0 .p-0 .justify-content-center}
 

docs/comp-r-shiny.qmd

@@ -18,7 +18,7 @@ If you're reading this, we expect that you are an existing R Shiny user with som
 ::: callout-tip
 ### Shiny Express
 
-Shiny [express](express-introduction.qmd) is a new, more expressive, way to build PyShiny apps. It is not available in R, so the comparisons drawn below are only relevant to core (i.e., non-express) apps.
+Shiny [express](express-vs-core.qmd) is a new, more expressive, way to build PyShiny apps. It is not available in R, so the comparisons drawn below are only relevant to core (i.e., non-express) apps.
 :::
 
 # Getting started

docs/debug.qmd

@@ -54,7 +54,7 @@ The error displayed in the app is only the final part of the stack trace, but th
 ::: callout-note
 ## Sanitized error messages
 
-When Shiny apps are deployed, error messages are sanitized to the eliminate the possibility of leaking sensitive information. To unsanitize error messages, you'll need to set `sanitize_errors=True` in the `App` constructor (of a [Shiny core app](express-introduction.qmd)).
+When Shiny apps are deployed, error messages are sanitized to the eliminate the possibility of leaking sensitive information. To unsanitize error messages, you'll need to set `sanitize_errors=True` in the `App` constructor (of a [Shiny core app](express-vs-core.qmd)).
 :::