refactor: Remove tailwindcss-rails dependency from Gemfile and Gemfile.lock

- Deleted the tailwindcss-rails gem from both Gemfile and Gemfile.lock to streamline dependencies.
- Updated README.md to provide a more comprehensive setup guide and key design choices for the TIL Tracker application.

Author: danieldanilov

Gemfile

@@ -15,7 +15,6 @@ gem "turbo-rails"
 # Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
 gem "stimulus-rails"
 # Use Tailwind CSS [https://github.com/rails/tailwindcss-rails]
-gem "tailwindcss-rails"
 # Build JSON APIs with ease [https://github.com/rails/jbuilder]
 gem "jbuilder"
 

Gemfile.lock

@@ -315,16 +315,6 @@ GEM
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.1.6)
-    tailwindcss-rails (4.2.2)
-      railties (>= 7.0.0)
-      tailwindcss-ruby (~> 4.0)
-    tailwindcss-ruby (4.1.3)
-    tailwindcss-ruby (4.1.3-aarch64-linux-gnu)
-    tailwindcss-ruby (4.1.3-aarch64-linux-musl)
-    tailwindcss-ruby (4.1.3-arm64-darwin)
-    tailwindcss-ruby (4.1.3-x86_64-darwin)
-    tailwindcss-ruby (4.1.3-x86_64-linux-gnu)
-    tailwindcss-ruby (4.1.3-x86_64-linux-musl)
     thor (1.3.2)
     thruster (0.1.12)
     thruster (0.1.12-aarch64-linux)
@@ -382,7 +372,6 @@ DEPENDENCIES
   solid_cache
   solid_queue
   stimulus-rails
-  tailwindcss-rails
   thruster
   turbo-rails
   tzinfo-data

README.md

@@ -1,24 +1,60 @@
-# README
-
-This README would normally document whatever steps are necessary to get the
-application up and running.
-
-Things you may want to cover:
-
-* Ruby version
-
-* System dependencies
-
-* Configuration
-
-* Database creation
-
-* Database initialization
-
-* How to run the test suite
-
-* Services (job queues, cache servers, search engines, etc.)
-
-* Deployment instructions
-
-* ...
+# TIL Tracker
+
+This is a simple "Today I Learned" (TIL) tracker application built with Ruby on Rails, following the 37signals development philosophy (minimal JS, server-rendered HTML, hand-crafted CSS).
+
+It also serves as a self-referential job application, demonstrating core Rails skills.
+
+## Ruby Version
+
+- Ruby 3.2.2 (Managed via `rbenv`)
+
+## System Dependencies
+
+- PostgreSQL
+- `rbenv` (or similar Ruby version manager)
+- Bundler
+
+## Setup
+
+1.  **Clone the repository:**
+    ```bash
+    git clone [repository-url]
+    cd ruby-app-37s/til_tracker
+    ```
+2.  **Ensure correct Ruby version:**
+    ```bash
+    rbenv install 3.2.2 # If not already installed
+    rbenv local 3.2.2
+    ```
+3.  **Install dependencies:**
+    ```bash
+    # Reason: Use rbenv exec for consistency, avoids potential shell issues
+    rbenv exec bundle install
+    ```
+4.  **Create and migrate the database:**
+    ```bash
+    rbenv exec rails db:create
+    rbenv exec rails db:migrate
+    ```
+
+## Running the Application
+
+- **Start the development server:**
+  ```bash
+  rbenv exec bin/dev
+  ```
+  Visit `http://localhost:3000` in your browser.
+
+## Running Tests
+
+- **Execute the RSpec test suite:**
+  ```bash
+  rbenv exec bundle exec rspec
+  ```
+
+## Key Design Choices
+
+- **No Frontend Framework:** Uses Hotwire (Turbo/Stimulus) for interactivity.
+- **No CSS Framework:** Uses simple, hand-crafted CSS (`app/assets/stylesheets/application.css`).
+- **Simple Tagging:** Uses a basic string field for tags to maintain simplicity.
+- **No Authentication:** Focuses on core CRUD functionality.