Sure, here's a tutorial for installing Thredded on Manjaro using markdown format:

How to Install Thredded on Manjaro

Thredded is a free and open-source forum software built for Ruby on Rails web applications. This tutorial will guide you on how to install Thredded on Manjaro Linux.

Prerequisites

Before proceeding with the installation make sure that you have the following:

• Ruby (version 2.5 or higher)
• RubyGems
• Bundler gem
• PostgreSQL (or any other supported database)

Steps

1. Open up the terminal on your Manjaro system by pressing Ctrl+Alt+T.

2. Update the package list and upgrade all packages by executing the following command:

   sudo pacman -Syu
   

3. Install the required dependencies by running:

   sudo pacman -S git postgresql ruby rubygems
   

4. Once the packages are installed, you can install the bundler gem by running:

   gem install bundler
   

5. Next, clone the Thredded repository from GitHub by running:

   git clone https://github.com/thredded/thredded.git
   

6. Change the directory to the cloned repository by running:

   cd thredded
   

7. Install all the required gems and dependencies for Thredded by running:

   bundle install
   

8. Create the database and run the migrations:

   rails db:create
   rails db:migrate
   

9. Start the integrated Rails server by running:

   rails s
   

10. Open up your web browser and navigate to http://localhost:3000/. You should be able to see the Thredded homepage.

Congratulations, you have successfully installed Thredded on Manjaro Linux!