Special topics

This section holds a collection of topics you might find useful when developing your app-package.

Review Chapters 26 - 29

Shiny Assistant (Chapter 26)

The shiny_assist chapter includes a series of prompts for developing an app-package:

• 26.1 IDE + Chat
  
• 26.1.1 Prompt 1: Build an app
  
• 26.1.2 Prompt 2: Refine
  
• 26.1.3 Prompt 3: Modularize
  
• 26.1.4 Prompt 4: Structure
  
• 26.1.5 Prompt 5: Error
  
• 26.1.6 Bonus: Theme
• 26.3 Finishing touches

Chapter 26 Applications

The applications in Chapter 26 can be accessed with the launch() or get() functions from the shinypak R package:

# install.packages('pak')
pak::pak('mjfrigaard/shinypak')
library(shinypak)

Chapter 26 applications:

list_apps(regex = '^26')
## # A tibble: 1 × 2
##   branch              last_updated       
##   <chr>               <dttm>             
## 1 26_llm-shiny-assist 2025-03-12 07:28:14

ellmer (Chapter 27)

ellmer covers:

• 27.1 Installing ellmer
  • 27.1.2 Using the chat
    
  • 27.1.3 Prompts
    
• 27.2 Movie explorer redux
  • 27.2.1 System Prompt
    
  • 27.2.2 Prompt 1: update
    
  • 27.2.3 Prompt 2: refactor
    
  • 27.2.4 Prompt 3: overhaul
    
• 27.3 Finishing touches

Chapter 27 Applications

The applications in Chapter 27 (ellmer) can be accessed with the launch() or get() functions from the shinypak R package:

# install.packages('pak')
pak::pak('mjfrigaard/shinypak')
library(shinypak)

Chapter 27 applications:

list_apps(regex = '^27')
## # A tibble: 1 × 2
##   branch        last_updated       
##   <chr>         <dttm>             
## 1 27_llm-ellmer 2025-05-27 22:37:25

chores (Chapter 28)

The chores chapter includes:

• 28.1 Navbar App
  • 28.1.1 App modules
    • 28.1.1.1 Compare
      
    • 28.1.1.2 Counts
      
    • 28.1.1.3 Distributions
      
    • 28.1.1.4 Awards
      
  • 28.1.2 Utility functions
    • 28.1.2.1 Name case
      
    • 28.1.2.2 Variable summary
      
    • 28.1.2.3 Movie awards
      
• 28.2 Configuration
  • 28.2.1 Configure add-in
    
• 28.3 Keyboard shortcut
  
• 28.4 Custom helpers
  • 28.4.1 Extension packages

Chapter 28 Applications

The applications in Chapter 28 (chores) can be accessed with the launch() or get() functions from the shinypak R package:

# install.packages('pak')
pak::pak('mjfrigaard/shinypak')
library(shinypak)

Chapter 28 applications:

list_apps(regex = '^28')
## # A tibble: 1 × 2
##   branch        last_updated       
##   <chr>         <dttm>             
## 1 28_llm-chores 2025-04-20 22:01:01

gander (Chapter 29)

The gander chapter covers:

• 29.1 Configuration
  • 29.1.1 Keyboard shortcut
    
• 29.2 Navbar App
  
• 29.3 Developing with gander
  • 29.3.1 Package functions
    
• 29.4 Context
  • 29.4.1 System
    
  • 29.4.2 User
    
  • 29.4.3 Assistant
    
• 29.5 Graph adjustments
  
• 29.6 Downloadable reports

Chapter 29 Applications

The applications in Chapter 29 (gander) can be accessed with the launch() or get() functions from the shinypak R package:

# install.packages('pak')
pak::pak('mjfrigaard/shinypak')
library(shinypak)

Chapter 29 applications:

list_apps(regex = '^29')
## # A tibble: 1 × 2
##   branch        last_updated       
##   <chr>         <dttm>             
## 1 29_llm-gander 2025-05-28 00:58:28

Shiny UI Editor

Shiny UI Editor covers…

Code style

Code style discusses…

App data

In App data…

• 32.1 reactiveValues()
  • 32.1.5 Testing reactiveValues()
    
• 32.2 session$userData

Dependency hell

The 33  🏗️ Dependency hell chapter

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