Stacks is built using Ruby on Rails + PostgreSQL as the foundation to the application. Search is built using ElasticSearch. Web UI uses Bootstrap framework and ImageMagick for image handling.
Content is written and stored in Markdown format for portability and sustainability. Images used in the content are from Unsplashed.
It currently has a daily backup running, so that the data can be stored safely, but may increase the frequency of the incremental backup as the volume increases.