update docs

docs/getting-started.md

@@ -14,8 +14,7 @@ Add the library to your `deps.edn`:
 
 ### Requirements
 
-- **Clojure 1.11+** for full async runtime (`tui.core`)
-- **Babashka** for simple sync runtime (`tui.simple`)
+- **Babashka** (recommended) or **Clojure 1.11+**
 - A terminal that supports ANSI escape codes (most modern terminals)
 
 ## Your First Application
@@ -41,7 +40,7 @@ Create `src/myapp/core.clj`:
 
 ```clojure
 (ns myapp.core
-  (:require [tui.simple :as tui]))
+  (:require [tui.core :as tui]))
 
 ;; 1. Model - the application state
 (def initial-model
@@ -58,8 +57,8 @@ Create `src/myapp/core.clj`:
     :else
     [model nil]))
 
-;; 3. View - render the model as hiccup
-(defn view [{:keys [message]}]
+;; 3. View - render the model as hiccup (receives model and terminal size)
+(defn view [{:keys [message]} _size]
   [:col
    [:text {:fg :cyan :bold true} message]
    [:space {:height 1}]
@@ -120,7 +119,7 @@ Clojure TUI uses the [Elm Architecture](https://guide.elm-lang.org/architecture/
 
 2. **Update**: A pure function that takes the current model and a message, returning a vector of `[new-model command]`.
 
-3. **View**: A pure function that takes the model and returns a hiccup data structure representing the UI.
+3. **View**: A pure function that takes the model and terminal size, returning a hiccup data structure representing the UI.
 
 ### The Flow
 
@@ -198,7 +197,7 @@ Let's build something more interactive: a counter.
 
 ```clojure
 (ns myapp.counter
-  (:require [tui.simple :as tui]))
+  (:require [tui.core :as tui]))
 
 (defn update-fn [model msg]
   (cond
@@ -220,7 +219,7 @@ Let's build something more interactive: a counter.
 
     :else [model nil]))
 
-(defn view [count]
+(defn view [count _size]
   [:col
    [:box {:border :rounded :padding [0 2]}
     [:row
@@ -315,7 +314,7 @@ Commands are returned as the second element of the update function's return vect
     :else
     [model nil]))
 
-(defn view [{:keys [count done]}]
+(defn view [{:keys [count done]} _size]
   [:col
    (if done
      [:text {:fg :green :bold true} "Time's up!"]
@@ -329,22 +328,6 @@ Commands are returned as the second element of the update function's return vect
             :init-cmd (tui/tick 1000)}))  ;; Start first tick
 ```
 
-## Choosing a Runtime
-
-### `tui.simple` - For Babashka and Simple Apps
-
-- Works with Babashka
-- Synchronous (blocking) input
-- No async commands (tick, batch, etc.)
-- Lower resource usage
-
-### `tui.core` - For Complex Applications
-
-- Requires full Clojure with core.async
-- Async input handling
-- Full command support (tick, batch, sequentially)
-- Better for animations and background tasks
-
 ## Configuration Options
 
 The `run` function accepts these options:
@@ -353,9 +336,9 @@ The `run` function accepts these options:
 |--------|-------------|---------|
 | `:init` | Initial model (required) | - |
 | `:update` | Update function (required) | - |
-| `:view` | View function (required) | - |
+| `:view` | View function `(fn [model size] hiccup)` (required) | - |
 | `:init-cmd` | Initial command to run | `nil` |
-| `:fps` | Frames per second (core only) | `60` |
+| `:fps` | Frames per second | `60` |
 | `:alt-screen` | Use alternate screen buffer | `true` |
 
 ### Alternate Screen