Wiki / Knowledge Base (Next.js, PostgreSQL, Elasticsearch, Boto3, Redis) overview

A collaborative knowledge base platform where teams author, review, and publish documentation with version history and cross-referencing. Next.js serves the wiki pages with server-side rendering for SEO and client-side Markdown editing with live preview. PostgreSQL stores article content, revision history, access permissions, and link graphs for detecting broken references. Elasticsearch indexes all articles with custom analyzers for technical terminology and code snippet search. Boto3 manages image and attachment storage with automatic thumbnail generation. Redis caches rendered pages, table-of-contents trees, and recently viewed article lists. The tradeoff is managing content freshness signals for search ranking and preventing knowledge fragmentation across overlapping articles.