The manual comma handling for the sameAs array is brittle and hard to maintain if more social links are added in the future. Using Nunjucks' built-in joiner utility provides a much cleaner and more idiomatic way to handle delimiters in conditional blocks.

  "sameAs": [
    {%- set comma = joiner(",") -%}
    {%- if seo.person.github -%}{{ comma() }}{{ ("https://github.com/" + seo.person.github) | safeJsonLd | safe }}{%- endif -%}
    {%- if seo.person.linkedin -%}{{ comma() }}{{ seo.person.linkedin | safeJsonLd | safe }}{%- endif -%}
  ]

Originally posted by @gemini-code-assist[bot] in #494