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Prerequisites

Before you start, make sure you:
1

Install the libsql_activerecord Rubygem

Add the following to your Gemfile:
gem 'libsql_activerecord'
Then run:
bundle install
2

Configure database credentials

Get the database URL:
turso db show --url <database-name>
Get the database authentication token:
turso db tokens create <database-name>
Assign credentials to the environment variables inside .env.
TURSO_DATABASE_URL=
TURSO_AUTH_TOKEN=
Add your Turso credentials to your Rails credentials file or environment variables.
3

Use the libsql adapter

default: &default
  adapter: libsql
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>

development:
  <<: *default
  url: <%= ENV['TURSO_DATABASE_URL'] %>
  auth_token: <%= ENV['TURSO_AUTH_TOKEN'] %>
  path: storage/development.sqlite3 # For embedded replica
4

Create and run migrations

Generate a migration:
rails generate migration CreateProducts name:string description:text
Run the migration:
rails db:migrate
5

Define models

Create a model in app/models/product.rb:
class Product < ApplicationRecord
  validates :name, presence: true
end
6

Use in controllers

In your controllers, you can now use ActiveRecord methods to interact with your Turso database:
class ProductsController < ApplicationController
  def index
    @products = Product.all
  end

  def create
    @product = Product.new(product_params)
    if @product.save
      redirect_to @product, notice: 'Product was successfully created.'
    else
      render :new
    end
  end

  private

  def product_params
    params.require(:product).permit(:name, :description)
  end
end
7

Execute raw SQL (if needed)

You can also execute raw SQL queries:
results = ActiveRecord::Base.connection.execute("SELECT * FROM products")

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Examples

Ruby on Rails App

See the full source code