ruby /home/runner/work/_actions/narze/merge_on_merge/main/merge_on_merge.rb "input" "src/content/ring.json" "project" "src/content/ring.json" "processed"
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
/home/runner/work/_actions/narze/merge_on_merge/main/merge_on_merge.rb:27:in `block in run': undefined method `append' for nil:NilClass (NoMethodError)

Consuming files in input path
Merging files to src/content/ring.json, using src/content/ring.json as base
    base_dest.append(json)
             ^^^^^^^
	from /home/runner/work/_actions/narze/merge_on_merge/main/merge_on_merge.rb:24:in `each'
	from /home/runner/work/_actions/narze/merge_on_merge/main/merge_on_merge.rb:24:in `run'
	from /home/runner/work/_actions/narze/merge_on_merge/main/merge_on_merge.rb:44:in `<main>'
Error: Process completed with exit code 1.