Steps to becoming a low-pressure AO3 bug fixer:
- Install Ruby 1.9.3.
- Grasp basic concepts in Ruby programming.
- Install Rails 3.2.14 (the recently upgraded-to version).
- Install various other necessary pieces of software (???).
- Download and unzip the most current version of the code.
- Figure out the bugfix workflow.
- Find a small bug that needs fixing and try to replicate it.
- Profit?